They've all been replaced, however, I almost like the old diaphragm that came out better than the new one I put in. Now the new one has swelled to the point of not going back in.
Well then that's really weird... Mikuni diaphragms shouldn't swell like that..... What kind of gas are you running?
93 octane pump with ethanol and wally world two smoke oil
Hey Patrick, sorry to hear it's not running as well as you like. I'll be the first to admit I F###ing suck at tuning. Tried tried tried just doesn't click for me. I like building and trouble shooting except for electrical stuff. Thankfully @jo5hi3 is around that can probably set you straight if you need carbs tweeked. But if you followed the Factory Pipe jetting specs you should be really close so might have something else going on. What's it doing?
Haven't had it back out yet, buried with work. I don't believe that diaphragm was leaking. I smothered it in two stroke oil when I put it together and I think that weeping I found was just residuals from assembly. I bought a couple more main jets from JM along with a pop off gauge. 32psi consistently fwiw. Anyway I felt it was running lean so I put a 147.5 in it. Just scared of frying a motor and losing more time this season. Rather fatten it up till it runs wet and back down from there. Thinking about buying another complete motor to drop in in case poop happens. I'll give it one more effort with this jetting, beyond that I don't want to fuss anymore and I'd rather have a professional ride it, naturally if it shyts the bed with someone else riding it, no liability on their part. I see people attempt home projects themselves and silently shake my head, but now I'm that guy whom has no business trying to tune this thing. Reason I've done it this much so far is because I want an understanding of what's going on since I'll be operating the machine.