I had one that had no pilot screw . Was just a plug .Originally Posted by beastybaconman
Just Too Addicted
Arm chair racerJust too addicted
I had one that had no pilot screw . Was just a plug .
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Teaching quads a lesson
I've had them come through with no screw at all.
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Arm chair racerNew to the board
Just got the rebuild kit and put in a new screw. When I was putting it in I screwed it down until it got hard to turn and one of the ears broke off, so I figured that must be all the way down. I just put a little notch in it with a band saw and screwed it out 2 turns. Is the end supposed to stick out this far?
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on the 85 carbs yes. The 86/87 carbs the screw goes in further.
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Arm chair racerNew to the board
Took it for a test drive and there wasn't any poping or backfireing when I let off the gas at first when I was taking it easy, but once I started to get on it a little more and run higher RPMs it started to backfire again. Right now the air screw is 2 turns out how should I adjust it to richen the mixtrue? or do I still just need a bigger slow jet?
Power User
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Bigger slow jet. Fatten it up some. What does the plug look like?
Power User
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Have to ask, when you replaced the carb parts, did you pop the needle jet out are put in the new one? That's the brass barrel the needle passes through?
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Arm chair racerNew to the board
Haven't pulled the plug yet I will tomorrow. All I did to the carb was easy-out the old air screw and put in a new one with the spring o-ring and washer.
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Arm chair racerNew to the board
Just pulled the plug, it looks alright.
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Ok, not too bad. At least its not white.
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Arm chair racerNew to the board
It seems to be running pretty good I think half the reason it pops when I let off is because there's no packing in the muffler, but I'll try changing the slow jet. And I just figured out the exhaust is leaking where the head pipe is clamped into the muffler, is that a big deal or should I try to seal it?
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THAT IS A BIG DEAL!!! That alone will cause the motor to run lean. I would suggest not running it until you get that fixed. Be very very careful when you loosen the nuts on the exhaust flange. The nuts love to fuse to the studs and when you go to break them loose, you run the risk of twisting the studs. Happens all the time. If you have access to a torch, heat those nuts and studs till they're red.
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Arm chair racerNew to the board
I'm just talking about where the two pipes connect with a clamp, not where it comes off the head
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My bad!!!!! That's not so much of a big deal.
At The Back Of The Pack
Arm chair racerAt the back of the pack
Not to be a Thread Dawg , But Beasty you need to learn something before you go any further ! Listen to these people that are responding to your questions! 1st, You have been told to repack the silencer (Muffler) or it won't run right ! 2nd , You said you didn't have anything except a nylon sock for a air filter ! Did you ever put a proper filter on it cause that will cause you problems is what you were told ? Before you do any jetting fix the obvious , such as header welded, Muffler packing, Filter element ! JMO but I hate hearing somebody give advice on hear and the people getting the advice not heeding what they have been told. Packing for the muffler is fiberglass insulation and pack the stuff into it , no matter how tight or loose it is packed is better than NO packing at all! BTW my wife's 250SeXy has the cobra exhaust and has a little popping at the end like you like ! Keep working on it and you will get it!
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