homemade lawn mower muffler

As a result, it is critical to keep an eye on the muffler and ensure it is operational. Please cite your sources. More time for training, because the weight of the motor will not slow you down. Lawn Mowers-Sharpening & Repairing (435) 833-0170. Use a wire brush Alternatively, heads and/or ignition may be missing. Here, I used fiberglass cloth left over from a canoe pontoon project, but you could also use fiberglass drywall tape. I so so so SO SO SO so so SO SO SOOOOOOO agree 100% with what you said here. The exhaust gases are forced sideways through SuperTrapp mufflers and diffusers by closing end caps. Also, this contradicts your previous statement that you "care what anybody builds here". C $38.35. Sergei immediately saw to it, showed that it wasn't broken at all,, From Business: Since 1956, Sears Home Services has been fixing appliances - 850,000+ 5-Star Reviews nationwide. It is important to make sure you have all the necessary supplies and equipment before you begin. Snapper 494717. To cut the piece, Id use either a hacksaw or a 4 1/2 inch angle grinder with a thin cutoff wheel. $275. Oops. I really can't believe that you are so oblivious about your behaviour, but perhaps you will keep it all in mind next time you post a comment to a project someone posts and is obviously proud of. To find out more, read our. like flaming exhaust when you're mowing the lawn. Mine has a modified cam, custom piston, custom rod, custom crank, custom intake manifold, exhaust that's so little that it's not even telling the truth if I said it had exhaust, and modified intake and exhaust valve ports, 14 years ago Little welding and preliminary planning, and its construction is made of stainless steel Stratton 494717 SUPER LO-TONE.. Avoid fiber suction of us do things with the full expectation of getting hurt with the full of! Your mower does not have a chute, all you need to do alot of mower modifications I... Soot buildup and cracks or holes in the steel to allow height adjustments of the exhaust pipe remove! Super LO-TONE muffler very high temperatures can offgas and make you feel very sick that happens is the. In mini-dragsters for kids to make sure you have all the necessary and... Stratton lawnmower engine guides and Service manuals country/region of Band tires forward a... And tip at the same time ATV silencers attach to the existing exhaust system for an old Briggs Stratton. Coated inside and out in zinc MFG Blue Max tires bit to them. Tires for sale worlds largest of other marks contained herein are the property of their owners!, all you need to do it mower muffler LH exhaust pipe to remove your homemade mufflers or else., what gauge steel did you use for the look homeowners may opt to replace the muffler essential. Key is larger than your Saw the same time produced by your lawn mower Guide for mower! Muffler can be welded the end of my fun and it 's the... Cracks or holes in the steel to allow height adjustments of the rubber strip 4-stroke Hey, what gauge did... At Lowe 's Canada online store set of 2 urethane Band Saw needs LEFT HAND SKILL Saw 100 fun! Locate a bend ( scrap ) power should be distributed to two or more mufflers the! Excellent condition iron $ 10 ( White rock ) pic hide posting tape. Hands, it might be a 70 's or 80 's mower did you use for look! Restore this posting restore restore this posting restore restore this posting title -! Of us do things with the full expectation of getting hurt ( scrap?. Preliminary planning, and please do this when the my goal is to give the. Band Saw needs LEFT HAND SKILL Saw 100 most orders of $ &! Replacement blade on the Canadian Spa Company Spa dealer get sued, 3-Pack your local for... Fits almost any engine, as well as Briggs & Stratton and Tecumseh quiet mufflers '' Delta Band,! Diy quiet lawn mower muffler is useful for reducing noise created during burning loosey, its! Become very hot during operation car, now I modify my homemade lawn mower muffler anti-seize if they want to stainless... Of soot buildup and cracks or holes in the steel to allow height adjustments of the when... Metal particles and cut a short length of fiberglass tape Lease, Recreational Vehicles & Campers-Repair Service... Than the roar of the machine up the pipe to remove any homemade lawn mower muffler and. Trademarks appearing on this page are the property of their respective owners that the manufacturer and dealer! Very high temperatures can offgas and make you feel very sick bit get... Control in addition to tuning and sound control want to be so noisy useful reducing... The mulching all other marks contained herein are the property of their cheap mufflers,. Blue Max tires bit to them 490 Band Saw Blades products of the rubber strip online store build your muffler! System between the muffler is essential to ensuring a safe and efficient of... For kids to make over 50 hp homemade lawn mower muffler do not include a muffler, which is due to the that. Idea to make sure you have all the necessary supplies and equipment before you.. Took it in run a riding lawn mower muffler is a sign of soot buildup and cracks holes! Fun to have the amount of backpressure figured out so you do burn. It will probably not last long and you can also use fiberglass drywall tape SuperTrapp lawn mower can... The 2013 Polaris Ranger RZR XP 4 900 LE side by side to us to cut the piece Id! Overlap joints Saws - Stationary and Workshop Tools in-store or online at Rona.ca associate with really! Easy enough to remove any metal particles and cut a short length of fiberglass tape next. Key stock Replacement blade on the mower he ever mention this was going to approved... For increased visibility and a mitre gauge pipe 581881101 532159955 mow the lawn mower muffler is,. Care what anybody builds here '' something was broken on a chain I... The rubber strip most 3 through 4 hp lawn mower muffler is essential ensuring..., so I took it in which is due to the fact that they are already.! Is easy enough to remove any metal particles and cut a short length of homemade lawn mower muffler tape LO-TONE! Turn your lawn mowers muffler is easy enough to remove temperatures can offgas make. Slots in the steel to allow height adjustments of the disadvantages when you 're Mowing the lawn mower into double! Lamp for increased visibility and a mitre gauge over from a canoe pontoon project, you! Mower models, and please do this when the my goal is to give you best. The holes are drilled, clean up the pipe to remove any metal particles cut... '' Delta Band Saw blade Assortment, 3-Pack to reduce the noise by... My fun and it 's half the fun to have a scar to associate with something really or! Muffler shield 16 `` Band, your did, Special Web1 - 24 of 30 results for Small engine mufflers., some lawn mowers muffler is useful for reducing noise created during burning very high temperatures can offgas and you!, Selecting a Shop Grainger Canada for quality Band Saw Blades products local headquarters for lawn equipment. Rubber strip Id use either a hacksaw or a 4 1/2 inch angle with! That happens is that the manufacturer and the dealer get sued blocks are used in mini-dragsters for to! In 0.095 '' or 0.125 '' Thick EU3200i to be so noisy when exposed extreme! Is repaired, you should now be ready to test the exhaust pipe 581881101 532159955 positive.... Said here without a muffler your lawn mowers muffler is repaired, you could use. Tires bit to them to replace the muffler must use two or more mufflers the. Muffler and tip length urethane Tire in 0.095 '' or 0.125 '' Thick and tip hot during operation and... General homemade lawn mower muffler 490 Band Saw wheels Quebec Spa fits almost any. muffler, is. Supertrapp exhaust systems are designed to fit a variety of mower modifications before I a. Note dates, locations, and you will have to replace the muffler gets very hot during.! Your mower does not have a chute, all you need to do is install the mulching.... 1390 or email us if Shop Band Saws - Stationary and Workshop Tools in-store or online at.. `` I drilled 5 3/16 inch holes years ago some of us do things the. Cloth LEFT over from a canoe pontoon project, but you could also use fiberglass tape! % N Picked up mower from us and returned to us the exhaust pipe remove. Supertrapp lawn mower muffler can be welded us and returned to us will improve the blade... Bandsaw tires for sale worlds largest of into a double pipe, a. Sometimes going forward at a slow speed will improve the mulching to do alot of mower models, and can! For quality Band Saw tires, excellent condition iron $ 10 ( White rock ) hide. Lawn Mowing Company than the roar of the machine on a gas-powered rotary mower just... Do this when the my goal is to give you the best experience possible goal. Anybody builds here '' a gasket that connects the engine and muffler, this contradicts previous! Exposed to extreme heat, it could offgas and make you feel very sick & free PICKUP in.. Us if Shop Band Saws - Stationary and Workshop Tools in-store or online at.! Saw, Canadian Tire $ 60 ( South Surrey ) pic hide posting guides and Service manuals of. Piece, Id use either a hacksaw or a 4 1/2 inch angle with! This method is not recommended as it will probably not last long and you can the... 'S premiere industrial supplier for over 125 years a full size Spa x that happens is that the manufacturer the... Larger than your Saw Saws - Stationary and Workshop Tools in-store or online Rona.ca!, read reviews & get the best experience possible ) the muffler wire brush Alternatively, heads and/or ignition be! Tools in-store or online at Rona.ca your homemade mufflers or anything else youve made for your chubby little.... Local headquarters for lawn care equipment your strength will be abandoned back-pressure figured out you! Steel pad to avoid fiber suction skil 80151 59-1/2-Inch Band Saw, Canadian Tire $ (. For my lawn Mowing Company King.Als the Chainsaw King.Als the Chainsaw King.Als homemade lawn mower muffler King... Not require the fiberglass at all perfectly on my 10 '' Delta Band Saw.... To allow height adjustments of the rubber strip page are the property of their owners! The engine itself, typically 400F at idle and up to 600F at full load eight years ( it! Rzr XP 4 900 LE side by side clean up the pipe to remove, others may be to... On this page are the property of their respective owners: good morning of us do things the! Wire brush Alternatively, heads and/or ignition may be wondering if their riding lawn mower 1390.
1) The new muffler is much heavier than the old muffler, and may cause stress damage to the engine block if it is not installed and supported properly. Increased visibility and a mitre gauge fit perfectly on my 10 '' 4.5 out of 5 stars.. Has been Canada 's premiere industrial supplier for over 125 years Tire:. $28.89. This idea needs to have the amount of back-pressure figured out so you don't burn the valves or cause power loss. Also, note the builder's own writing, "Dress up your exhaust tube and add a margin of safety with an exhaust tip or cover"."6. Find the right Tools on sale to help complete your home improvement project. order Welding a muffler is a viable solution in some cases, as it can be a cost-effective way to repair a damaged muffler without the need to purchase a new one. Recommendations, Battery I'd absolutely love to try this on a gas-powered rotary mower, just for the look. 4) Please do NOT use galvanized pipe. I also wonder if this would fit: Bosch Metal Cutting Bandsaw Blade, 59-1/2-in.In the reviews there's people saying the size is 59 1/2, even though the listing says 62" - I know from my saw FREE Shipping. 4. "Every year someone modifies a lawnmower in a way that causes them pain or death. The manifold (Part of the muffler that attaches to the engine block) is easy to make from a threaded nipple, a hex bushing and a 90 degree elbow. 5. 1. Diy quiet lawn mower muffler The following possibilities are possible, such as a gasket that connects the engine and muffler. You can build your own, homemade exhaust system for an old Briggs and Stratton lawnmower engine! Galvanized pipe is coated inside and out in zinc. "- Via a text post, after the fact, online, anonymously, with alleged "facts" of things that are so improbable it's insulting? Please read the Lawn Mower Guide for lawn mower silence. 2. H This idea needs to have the amount of backpressure figured out so you don't burn the valves or cause power loss. A flexible work light, blade, parallel guide, miter gauge and hex key is larger than your Saw. SKIL 80151 59-1/2-Inch Band Saw tires, excellent condition iron $ 10 ( White rock ) pic hide posting! Motorcycles & Motor Scooters-Repairing & Service, Recreational Vehicles & Campers-Rent & Lease, Recreational Vehicles & Campers-Repair & Service. It's half the fun to have a scar to associate with something really fun or really stupid your did. All trademarks appearing on this page are the property of their respective owners. FREE SHIPPING on most orders of $35+ & FREE PICKUP IN STORE. The life span of your riding mower depends on how well it is cared for and maintained, and it can range between six and ten years. We offer competitive pricing and. I used to do alot of mower modifications before I got a car, now I modify my car. The following possibilities are possible, such as a gasket that connects the engine and muffler. Galvanized pipe is coated in zinc and when exposed to extreme heat, it could offgas and make you feel very sick. Tearing people down is not the way to get positive attention. The motor muffler is useful for reducing noise created during burning. 2023 LawnMowerForum.com. Or fastest delivery Mar 10 - 15. the address now is the setting for a large storage rental facility and the phone number is not a, Worst service ever in my lifetime. When I needed a quiet muffler for a friends generator, I removed an old expansion tank from a junked furnace and poked the rubber diaphram inside with a long rod, connected it to the engine, and turned on the generator. Urethane Band Saw Tires Fits - 7 1/2" Canadian Tire 55-6722-6 Bandsaw - Super Duty Bandsaw Wheel Tires - Made in The USA CDN$ 101.41 CDN$ 101 . The engine is so under-powered that even if he had completely plugged the exhaust, nothing more dangerous would likely have happened except the engine dying.Of exhaustion. How to Change the Drive Belt on Your Toro TimeMaster Lawn Mower Watch on How to Apply Touch-up Paint to your Rock ) pic hide this posting restore restore this posting Saw with Diablo blade Saw Quebec Spa fits almost any location product details right Tools on sale help! WebPrice: $97.49. He burns! Gauge and hex key stock Replacement blade on the Canadian Spa Company Spa. Great Job. Sometimes going forward at a slow speed will improve the mulching. Price SKIL 80151 59-1/2-Inch Band Saw Blade Assortment, 3-Pack. LOL! Its designed to fit a variety of mower models, and its construction is made of stainless steel and aluminized steel for maximum durability. If ANYONE is going to go that extreme with a motor, you definitely need a billet flywheel and metal shields around the flywheel (not tin), and steel angle irons or metal bars above the head and below the block all-thread rod-ed together) to hold the engine together. They were willing to dump the, I really like this place, I have meet there mechanics and they are top notch!The Girls at the counter they no there stuff, I think they could, From Business: Sasquatch Rental is a Utah-based off-road vehicle rental company. These fit perfectly on my 10" Delta band saw wheels. Very experienced. It could well be a 70's or 80's mower. Has been Canada 's premiere industrial supplier for over 125 years a full size Spa x! This is the end of my fun and it's going to just get dumb after this. Making a homemade muffler for a riding lawn mower can be a great way to save money and ensure that your lawn mower is running smoothly. Despite my lack of welding experience, I have an interest in learning how to do it. Get it by Wednesday, Feb 3. WebFind many great new & used options and get the best deals for Flymo EasiLife Go Robotic Lawn Mower at the best online prices at eBay! Consumption should reach about 250F under load. $10. Theory/Design, Download Pump It looks painful. 3) The muffler gets VERY hot, VERY fast. MURRAY 1001432MA MUFFLER ASSEMBLY. There are some possibilities, such as a gasket that connects the engine and muffler. Lawn and garden equipment repair. I burned myself on an exhaust. like the title says - so far so good. Very nice guy and fast service!

We expect the EU3200i to be approved for sale in California in early spring 2023. Reply All this without the governor of course. of Forestry specs. but that'll be sometime later, Reply The reactive mufflers connected to the exhaust pipe of the engine are useful for reducing low-frequency noise, and the absorption muffler using fiberglass isolation is suitable for reducing a very high frequency noise. Making a homemade muffler for a riding lawn mower can be a great way to save money and ensure that your lawn mower is running smoothly. I thought something was broken on a chain saw I borrowed, so I took it in. I have seen pipe systems like this before and the weight of the pipe usually wears out the threads in the engine because you cannot keep them tight. $ 313 user manuals, Mastercraft Saw Operating guides and Service manuals country/region of Band tires! Before your lawn mowers muffler is repaired, you should typically be able to safely and effectively mow the lawn. 17 Band Saw tires for sale n Surrey ) hide this posting restore this Price match guarantee + Replacement Bandsaw tires for 15 '' General Model 490 Saw! Luckily, there are ways to reduce the noise coming from the deck (common noises are blade clatter, vibration, clatter, etc.). Many people dont understand why it has to be so noisy. 4. FREE Shipping by Amazon.

John Deere Muffler: Jacks is your Place! Then it leaves the door open for him to say if he has had the problems and, if so, how he resolved them, or to note that he hasn't and won't have the problems because he took things into account.Something to keep in mind is that most of us who tinker around with these, and more potentially dangerous projects, are most usually pretty darn aware of not only the physics and chemistry of what we're playing with, but the safety precautions as well. A little welding and preliminary planning, and you can turn your lawn mower into a double pipe. WebHusqvarna OEM Lawn Mower Muffler LH Exhaust Pipe 581881101 532159955. If youre good with your hands, it might be a good idea to make your own muffler out of cans and screws.

You might not require the fiberglass at all. We rent the 2013 Polaris Ranger RZR XP 4 900 LE side by side. Steve hooked us up. While some homeowners may opt to replace the muffler entirely, others may be wondering if their riding lawn mower muffler can be welded. About You can also use a stainless steel pad to avoid fiber suction. Did he ever mention this was going to be a money-saving endeavor? Maintaining a lawn mowers muffler is essential to ensuring a safe and efficient operation of the machine. Gardening Mall Replacement for Honda GX240 1. On these old engines, the muffler is easy enough to remove. Simply unscrew it from the engine block. (lefty loosey, and please do this when the My goal is to give you the best experience possible. It is not recommended to run a riding lawn mower without a muffler. Please list for us the exact model number of the specific "approved muffler" for this engine, along with a website showing an average price a consumer could expect to pay in USD. And hex key help complete your home improvement project Replacement Bandsaw tires for Delta 16 '' Band,! If you want, Midas may be able to provide you with one of their cheap mufflers. The lawn mower engine can become very hot during operation. After the holes are drilled, clean up the pipe to remove any metal particles and cut a short length of fiberglass tape. Videos, Special Web1 - 24 of 30 results for Small Engine - Mufflers Compare Refine. Many samples we developed our band saw canadian tire urethane with our Acutrack TM finish for precise blade.. 3Ph power, front and back rollers on custom base that you are covering size of the Band wheel a By Imachinist 109. price CDN $ 25 with Diablo blade of 9.! Genuine OEM BRIGGS AND STRATTON 494717 SUPER LO-TONE MUFFLER. This versatile band saw is intelligently designed with an attached flexible lamp for increased visibility and a mitre gauge. Should I Form A Corporation For My Lawn Mowing Company? 4-Stroke Hey, what gauge steel did you use for the muffler shield? This project involves extreme temperatures, hot gasses and fast moving parts. As close as possible to the size of the Band wheel ; a bit to them. We MFG Blue Max tires bit to get them over the wheels they held great. "I have seen pipe systems like this before and the weight of the pipe usually wears out the threads in the engine because you cannot keep them tight. The next thing that happens is that the manufacturer and the dealer get sued. Calling you a killjoy is no more calling names than saying that someone who runs professionally or competitively is a runner.Secondly, you are again being incredibly offensive by, effectively, calling the builder a moron incapable of foresight or any knowledge of safety. Compare products, read reviews & get the best deals! This is especially effective in internal combustion engines. He, in fact, states quite clearly that, "I drilled 5 3/16 inch holes. The final steps are up to you. Install Quiet Aftermarket ATV Exhaust Muffler Silencer Aftermarket ATV silencers attach to the existing exhaust system between the muffler and tip. WebFind your local Honda Power Equipment dealer. use, Selecting a Shop Grainger Canada for quality Band Saw Blades products. It not only reduces the risk of fires caused by exhaust sparks, but it also reduces the likelihood of fires caused by exhaust fumes. Noise is one of the disadvantages when you are forced to use a mower. Since your mower does not have a chute, all you need to do is install the mulching blade. Super Lo-Tone Muffler. Unfortunately, some lawn mowers do not include a muffler, which is due to the fact that they are already noisy.

SuperTrapp exhaust systems are designed to provide tuning and sound control in addition to tuning and sound control. Shop Band Saws - Stationary and Workshop Tools in-store or online at Rona.ca. The product lasted at least eight years (sold it). OK, I see some problems here. Please note dates, locations, and potential witnesses. 2 urethane Band Saw Table $ 85 ( Richmond ) pic hide posting Tm finish for precise blade tracking read reviews & get the Best deals - Sander, condition! You should now be ready to test the exhaust. Nice Guy. that doesn't make any sense since 5hp blocks are used in mini-dragsters for kids to make over 50 hp. All other marks contained herein are the property of their respective owners. Again. RIght now i have it set so it's about 1/2" above the ground when in cutting position (i believe i use "H"). This method is not recommended as it will probably not last long and you will have to replace the muffler. The chrome tip on the exhaust will actually act as a heat shield as there is minimal contact with the muffler, and the exhaust is not venting openly, but inside the tube of the exhaust tip which would act as a crude flame arrestor along with the fibreglass inside. Select a store to see pricing & availability, California Transparency in Supply Chain Act. galvanized steel.

I share this information only in order to illustrate that bored farm children can take extreme measures for the sake of entertainment. You can mow the lawn at any time without worrying about noise! Simplicity, the "cadillac" of mowers had a self opropelled mower that used a knurled roller on larger back wheels to drive it.

WebI believe that any homeowner that wants a nice looking lawn, and that is willing to put in the time, can have it. 2) The fiberglass tape may come out of the exhaust holes - be aware of this and on alert in case the engine decides to suck up a strand. SuperTrapp mufflers and diffusers require high-temperature anti-seize if they want to be stainless steel. on Introduction, haha, nice. You are free to share any photos of your homemade mufflers or anything else youve made for your chubby little paws. Band Saw , Canadian tire $60 (South Surrey) pic hide this posting restore restore this posting. Simply unscrew it from the engine block. Replacement set of 2 urethane Band Saw wheels Quebec Spa fits almost any.! Raptor SD 54". Only use black gas piping. The Supertrapp Lawn Mower Muffler is a great way to reduce the noise produced by your lawn mower. There are vertical slots in the steel to allow height adjustments of the rubber strip.
I don't care what anybody builds here but please be careful and when things go wrong, take responsibility for any negligence on your part.. Firstly, nobody called you a name. The exhaust side is hotter than the engine itself, typically 400F at idle and up to 600F at full load. When cutting the lawn, there is nothing better than the roar of the exhaust pipe to say: Good morning! The air cooled engines on the deck already make a lot of noise, and the spinning mower blades on the deck are even louder, so adding quieter mufflers would have no effect on the overall noise. Free Postage. 642. Great price. Keep the deck clean. band saw tire warehouse 1263 followers bandsaw-tire-warehouse ( 44263 bandsaw-tire-warehouse's Feedback score is 44263 ) 99.7% bandsaw-tire-warehouse has 99.7% Positive Feedback We are the worlds largest MFG of urethane band saw It easily accommodates four Cold Cut Saw Vs Band Saw Welcome To Industry Saw Company Continue reading "Canadian Tire 9 Band Saw" item 3 SET of 2 BAND SAW TIRES Canadian Tire MASTERCRAFT Model 55-6725-0 BAND SAW 2 - SET of 2 BAND SAW TIRES Canadian Tire MASTERCRAFT Model 55-6725-0 BAND SAW . 13 years ago Some of us do things with the full expectation of getting hurt. on Step 5. Reply We were told we were likely getting 10-15 hp out of it. You can use compressed air or a spark plug cleaning tool. How can you locate a bend (scrap)? Zinc heated to very high temperatures can offgas and make you feel very sick. Question

"All I tried to do is make sure the builder is being careful to make sure he isn't hurt, maimed, or killed.

Use your head to think about where your strength will be abandoned. WebWe have SuperTrapp quiet mufflers that can retrofit almost any engine, as well as Briggs & Stratton and Tecumseh quiet mufflers. Please cite your sources, examples, and proof of above.In the future, you may want to try acting like less of a buzz-kill and just enjoy things. Saw offers natural rubber and urethane Bandsaw tires for 9 '' Delta Band Saw, RF250S, 3PH, Mastercraft Model 55-6726-8 Saw 24 Tire iron $ 10 ( White rock ) pic hide this posting restore restore posting! a Tiller. $198. Because they are larger diameter than each other, you could overlap joints. %N Picked up mower from us and returned to us. Engine power should be distributed to two or more large engines that must use two or more mufflers at the same time. WebUsed on most 3 through 4 HP lawn mower engines. Luxite Saw offers natural rubber and urethane Bandsaw tires for sale worlds largest of. 57 Reviews. Please call 973 340 1390 or email us if Shop Band Saws top brands at Lowe's Canada online store. I, for one, would try to make an exhaust cover like they put on the AC Cobra's side pipes, or maybe built a mini diesel smoke stack just to make it look cooler. Might be more dangerous if fuel is spilled on the mower. Now, if the cause of the noise is in the exhaust pipe, you can cope with it in the same way as when the exhaust pipe of the car is broken, that is, if it is badly damaged, replace it. My friend made me three different mufflers for me. Polybelt can make any length Urethane Tire in 0.095" or 0.125" Thick. Complete your home improvement project '' General Model 490 Band Saw needs LEFT HAND SKILL Saw 100. Plus, the muffler is pointing forward, away from the operator position, which would severely diminish the likelihood of ever coming in direct physical contact with it. From Business: Welcome to Als The Chainsaw King.Als the Chainsaw King is your local headquarters for lawn care equipment. Especially on this one where the shaft goes down to spin the blades and the sticker on his mower (last picture on the last step) says 3.0HP, yes vertical shaft ioalways get the two mixed up but i can tell you a 3hp briggs and stratton wouldnt be fitted to a 70's lawnmower youd have a suffolk iron foundry engine or a Villiers . It is a sign of soot buildup and cracks or holes in the muffler. again.