Oddly configured 12.5hp 286707

[ericvey]

I recently bought a "vintage" snapper rear engine series 3 that had been repowered with a B&S 286707-4029-01 circa 1995 engine.
I'm trying to find out everything I can about it to get ahead of future problems so I don't have to be one of those "HELP ME" people that show up on forums all time.

Right now, everything is running fine, I changed the blade, the air and gas filters. Good compression, no blue smoke, governor hardly kicks in even when going through very tall grass, but I'm a bit worried about the condition of the plastic pinion on the starter -- the top half is about gone, but it engages properly.

I looked at the parts manual. I looked at the utube videos and all the photos that I can, but mine doesn't look like theirs. Everybody else has a nice flat screen over the flywheel. Mine has a smooth shaft sticking up about one inch. I'm attaching photos.

When I bought this thing, it had a pull starter over the shaft, but, of course it wouldn't do anything. I was thinking maybe I can cut a keyway into it and put a pulley on it to run various things. Or maybe I can put a pull starter on it. Seems a shame to have an engine like this only for cutting grass.

 

[Boobala]

Have you checked here ?? That is different looking, whats it look like with the shroud removed ??


https://www.jackssmallengines.com/j...00-to-286799/286707-4029-01/electric-starters

 

[ericvey]

Those plastic pinion gears are just about everywhere. I think even Tractor Supply has them for ~$7. I'll go ahead and buy one to put on the shelf. There is a utube video explaining how to change it. I need a long drift pin, but I think I can get one those a harbor freight or something.

 

[Tinkerer200]

Nothing odd about it. He said it did have a recoil starter on it. He has remove part of it. On the rare occasion I have done that I sawed the crankshaft extension off and replaced the recoil starter hub with a nut, adapter and a solid screen. Actually that may be new enough that the extension will screw out instead of being one pc.

Walt Conner

PS: Yeah, IPL says the extension screws out/in. I can send you a Service (overhaul) Manual for the engine IF you like, address below, put in proper format and remind me engine model number and what you want.

wconner5 at frontier dot com