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Post by rocketdog on Dec 5, 2011 20:45:41 GMT -5
All the suggestions above are valid, in my opinion. Check the valves 1st, then while it is running shoot carb. cleaner around the intake. See if it picks up speed and stays running. There's your leak. I wouldn't think it would be an ignition problem since it fires up. Stranger things have happened however, but it usually takes a bit of time and heat for a coil to break down.
RD
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sctrdawg
Scoot Enthusiast
scooter bum
Posts: 149
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Post by sctrdawg on Dec 5, 2011 21:03:07 GMT -5
dude it will not start it will stumble like it really wants to crank !! it just wont! valves are good,fire good,gaskets all the way thru my intake and spacer! put my hand on the carb and crank it over and it sucks my hand really hard ! so no leak there, fuel pump is working!piston not cracked, got new rings!i've tried everything!! I AM LOST!!
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Post by rocketdog on Dec 6, 2011 7:40:03 GMT -5
I know that it can be frustrating when things don't work like they should. Hang in there. If everything was perfect it would run. How about the cam timing? Are you certain it's correct? It's real easy to be off by a tooth. Pop the valve cover off and check it against the timing marks on the flywheel.
RD
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Post by ososlow on Dec 6, 2011 13:05:30 GMT -5
you havent tried everything  |
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Post by craisin on Dec 7, 2011 2:27:38 GMT -5
sounds like a vacumn leak like someone said up there
Maybe a crack on the rubber where the carb goes onto the manifold
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sctrdawg
Scoot Enthusiast
scooter bum
Posts: 149
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Post by sctrdawg on Dec 7, 2011 10:36:37 GMT -5
tried the idle screw thing ! even got someone to hold my beer!
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Post by ososlow on Dec 7, 2011 14:10:23 GMT -5
 did it at least sound better while it was cranking? you may have to give it another turn. i deal with the same symptoms every morning now that its getting cold outside
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sctrdawg
Scoot Enthusiast
scooter bum
Posts: 149
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Post by sctrdawg on Dec 7, 2011 14:42:14 GMT -5
its not that! the dang thing wants to run! it just will not out run the starter!! i got the thump thump and everything!!
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Post by ososlow on Dec 7, 2011 17:22:03 GMT -5
yes thats exactly what mine does. you are turning the mixture screw not the speed screw right? (i may not have been clear on that) try to start over, turn it atw in then 2 1/2 out. try to start it. if it still wont start give it a nother 1/4 turn out and try it again ect ect ect
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sctrdawg
Scoot Enthusiast
scooter bum
Posts: 149
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Post by sctrdawg on Dec 7, 2011 18:28:52 GMT -5
yep idle mixture!
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sctrdawg
Scoot Enthusiast
scooter bum
Posts: 149
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Post by sctrdawg on Dec 8, 2011 8:45:04 GMT -5
got plenty of fuel!!! yes it has been cleaned twice! 88 jet it has a 100cc(81.3) kit brand new rings. It wants to crank really bad ,just wont!
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Deleted
Deleted Member
Posts: 0
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Post by Deleted on Dec 8, 2011 8:59:23 GMT -5
obviously not. also an 88 is too small for a 50mm and you didnt say what that pilot jet is. put a new $25 carb on it with a 95 main and 32 pilot and be done IMO |
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Post by Pony66 on Dec 8, 2011 11:30:38 GMT -5
all green wires and yellow wires connected! dont have a volt meter to check enricher!I'm gonna lose it bad!!need TNT to end the scooter blues!!!!!!!!!!!!! To check the enricher, apply 12v and after about 2 min the brass plug should extend 1/4" Sounds like you need to either: Clean the carb jets Adjust the valves again to .05mm clear debris from Petcock valve. (blow and suck on vacume hose for about 30 sec.) Check O-ring on bottom of intake manifold and manifold for cracks. |
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Deleted
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Post by Deleted on Dec 8, 2011 14:08:58 GMT -5
describe your carb cleaning method. unless you are using compressed air you are wasting your time IMO
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sctrdawg
Scoot Enthusiast
scooter bum
Posts: 149
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Post by sctrdawg on Jan 13, 2012 16:49:03 GMT -5
alright guys, i've tried everything i know! i had it running twice today! will not run now! what would cause this ? got air ,got fuel, got spark! haven't frigged with it for a few weeks til today! ready to ride Damnit!
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