The best way to service these is buy the bowl service kit which is usually listed at the bottom of the parts list.

tomplum cuts right to it....you can clean that carb until it shines and it will still hunt or fail to pick up and run. We have started giving these a quick cleaning and if that doesn't work (it seldom does) we move on to the bowl kit.

mike merritt

I fixed the sucker. I did have a small o-ring to fit the main center jet, I did not have another small o-ring to fit around the jet that is held by the drain screw. I just simply removed the squashed o-ring and re-installed the jet and spring and that was it, it works at 99% saved around $35 here in Toronto for the bowl kit. I would love to know where I can buy those small 0-rings they would sure come in handy when working on all types or carbs.

Thanks for the tips now I know how to service these silly carbs, that is if I see one again.

They are serviced from Tecumseh. Not cheap little buggers tho... Congrats on the repair. Be sure and do a cold start tomorrow.

They don't even get in the door of my shop! And if i find one in the trash, they get canniballized for parts! I wasted a lot of time and the price of one of those black bowl repair kits! It didn't work! I apologize to Tecumseh-man, as he sez they are great! I don't think so, but thats just my opinion!
RJ

I purchased a bowl kit off ebay and it worked great. If your looking for o-rings. Check your local hardware store. They carry many sizes. Bring your old o-ring and match up.

It seems by the time you would repair one correctly (hopefully) they can still bite you on the backside. The little o rings are pricey for the tube- some have 2 on the tube alone plus the one below, plus the gasket and then when your done, you end up still wanting a better repair. It's great to know Rolm got it the first time. Most techs have learned the hard way and do what networker said. One does have to be careful that they get the right kit. I've grabbed one that was on the QR chart I grabbed somewhere and it was wrong per the parts list. Part of this, I believe is a lesson on some people and carb cleaners. If I come across one that has badly deteriorating O rings, I wonder how much cleaner is in the tank. Always best to clean the tank and flush or replace the lines.

All 'O' rings are not made the same. Just like you
can't use any old rubber hose for a gas line. The
gasoline will eventually 'melt' rubber that is not
designed for use with gasoline.