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I too have had similar sounding issues with my old Lawnboy. Mine is a commercial 6259 model which I bought new in the early 80's. I am not familiar with your exact model but suspect it is similar to mine engine-wise. The first time it failed it was about 20 years old. It would die out in a...

Update... After the fourth time with the flywheel off we finally fixed the fault. Rivets thank you for your suggestion of oil seal replacement. Yep that was it. We didn't have a seal puller but easily removed it by drilling two small holes (hardest part of the repair) and screwing in two sheet...

Rivits, we didn't replace the oil seal but think that may be a good next step. The hole which we J_B welded seems to be good but unit still leaks. Can the seal be changed relatively easily? Can I do it without engine disassembly other than flywheel removal? The engine didn't leak before the...

Thanks for all of your suggestions. I have never used Lumiweld or other similar products nor did I know about them. I was impressed when I looked at some utube videos showing them. We did a post-mortem on our repair. To my surprise, the JB-Weld was solid and did not appear to leak. There was...

I have been working on a friends snow blower. the unit stopped with a loud bang emanating and then a seized situation. We took the flywheel off to find a mangled alternator. Somehow the alternator screw(s) had come lose allowing the coil to jamb in the flywheel. One of the mounting standoffs...

I too had a mouse problem on a similar engine but was lucky to catch it before it caused problems. Now I have an 8mm nut driver handy so that I can remove the flywheel screen for inspection before each use. Attached is a picture of a nest which was constructed in a few days. I was thinking that...

I have a 1985 MTD tractor model 145-810 I believe. It has the original gas cap which is missing the clear plastic top part. I am worried that if I leave the machine out when raining it will leak water into the tank. I would like to find a replacement cap. I don't require(or want) one with the...

I have a 16 hp B&S Vanguard 303707 which requires a new starter. I can easily remove one bolt but the one towards the front of the engine is very difficult. I could remove the flywheel to gain access to the bolt but don't want to. I note that B&S offer a special tool but it is rather expensive...

I've been working on a puller type garden tractor. Originally it had a Kool-bore 18 hp opposed twin in it. A neighbour gave it to me a few years ago and it quickly became my favourite as it could do so much work. When I got it, it was smoking a bit and leaked some too. I changed the oil often to...

I have a carburetor on a 16 HP Vanguard that has a main jet that I can't remove. The item is 117 (attachment) and the screw driver slot has been compromised a bit making it hard to get a good torque on it. Is a special tool required? Are these jets installed with a thread locker seal? I tried...

Where can one find what B&S "TYPE" numbers mean? I have found info on model numbers and code numbers but haven't seen type number info. Thanks for your input.

I recently purchased an Ariens YT-12 Hydro for an elderly friend. The engine smoked some when started. I did a compression test on it with 55-60lbs. The unit is model 281707 type 0143-01 code 8804131 I would like to "freshen up the engine. I thought maybe rings and a valve seating plus...