Re: 28 5-26 Carb Rebuild Kit

Posted by 28Pack526 On 2014/9/1 13:29:55

Thanks for the advise Tim. After grumbling a bit, I just bit the bullet and did as you suggested. I was able to polish the rough float valve on my lathe (although I didn't actually use it) and cut out the necessary missing gaskets easily enough.

These carbs are indeed simple, but there are a few undocumented gotchas that clearly escaped the previous rebuilder. Specifically, the choke butterfly linkage can be connected backwards so that the secondary airvalve lockout cam doesn't engage properly. Aside from the benefits of a thorough cleaning and new gaskets, I believe that was really all that was wrong with mine. In order to correct for that oversight, they had the airvalve spring tension setup wrong, and the idle set way too high to compensate. It ran okay, but overly rich and required partial choking at all times. Runs beautifully now though :)

Having it to do over again though, unless your float valve or air valve springs aren't salvageable, I'd just make my own rebuild kit to begin with. I can understand that kits are often generalized, that there's variation between carbs one year to the next, and for all I know someone may have replaced certain components on my carb over the years. That said, the kit wasn't cheap and about the only parts I ended up using were the replacement air valve springs and the float cover gasket. I'd at least expected the intake gasket to be correct, since I'm certain that at least is a stock configuration and it's the hardest to reproduce (noting the required flame proof material).