ok the kehnin from a yz85 carb. I took bowl off and there is a 128 i belive in there. Is that jet way to big? beacuse it looks likes it.
Yz85 CArb
- Thread starter Blasterr525
- Start date
depending on what year model YZ85 it could be a keihin PWK28. If it is, that jet is probably too small. The only way to tell for sure is to do a plug chop after you've installed the carburetor but just guessing, you'll need to step up a couple jet sizes.
Like Civic said, you'll know when you start chopping plugs. If that carb is going on your Blaster, the main is WAY too small. I was running a 148 main and 50 pilot on my 28mm Keihin PWK after getting things dialed in.
Yeah, bump your main jet up to a 150 and see how it likes it. It might not start with too small of jets in there. Change your pilot, too, at the same time. It will run with the 150 if everything else is OK in there.
