Smoking like crazy

I have a 1989 yamaha blaster thats bored .2 over with a weisco piston, boyeson power reeds, stock expansion chamber, aftermarket pipe dont know the brand sticker was burnt, oil injection, aftermarket airfilter no airbox lid, currently running a 250 mainjet, needle clip is set on third in the middle carb is clean. i just replaced the clutch plates because they weren’t working right i also removed the tors when i fixed the clutch and used the elimination kit i drilled and tapped the carb it has its new airscrew in. It starts and idles but it will seriously smoke my whole street up i dont think ive ever seen it smoke so much i tried messing with the air screws but no luck where should they be set and is the carb set up good?

Clapdblaster said:

Same thing happened to me ended up being crank seals it was sucking case oil in causing it to smoke like nothing I’ve ever seen

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Would it do this if i put in to much case oil bc i accidently put a couple hundred ml more

DLStryker said:

In my opintion it could only be 2 things. Too much oil from the injector or you are sucking gear case oil into the crank case. Mix up some 32:1 premix gas and disconnect the oil injector hose. See if that clears up the smoking problem.

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Would it suck up gearcase oil if i put to much in

Awk08 said:

no

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Do you think it could be my carb it starts high reving super hard when i put the choke in but when its out it will idle for a while then die

Clapdblaster said:

Same thing happened to me ended up being crank seals it was sucking case oil in causing it to smoke like nothing I’ve ever seen

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I just ordered crank seals how easy is it to replace them?