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Post by leeman8 on Jan 18, 2009 6:48:50 GMT -5
please help with this problem ,i have just bought a used pw for my 3yr old (yes he can ride it!!!) it runs well for about 20 mins then loses power , i have put in new piston and rings, new plug and cap cleaned carb and drained fuel and put in new !!! it revs fine on stand but will not pull even my son ! again when on stand wheel spins but under load nothing please help as father and son getting very frustrsted not to mention perplexed.thanks
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rhyd
New Member
Posts: 8
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Post by rhyd on Jan 18, 2009 17:12:57 GMT -5
has the resistor plate been taken out of the exhaust?
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Post by leeman on Jan 19, 2009 15:01:29 GMT -5
how do i find that?
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Post by tdreyer on Jan 20, 2009 11:41:36 GMT -5
Loosen the 2 bolts that hold the exhaust to the cyl. Remove the bolt that holds the pipe on the bike. May also want to remove the silencer/spark arestor. With the 2 bolts @ the head loose you can slide the pipe off. There is a restrictor(large washer w/smaller hole) in the pipe/head junction.
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Post by leeman on Jan 21, 2009 3:16:42 GMT -5
thanks for advice ,washer not there !! i think maybe this is more complicated than a restrictor as it wont pull my three yr old which it should even with the restrictor in.
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Post by dakotaboy on Jan 21, 2009 12:18:25 GMT -5
perhaps the centrifugal clutch needs new shoes, if it wont "grab" under load.
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Post by leeman8 on Jan 22, 2009 9:32:35 GMT -5
any advice on how i can tell if the clutch is not working i'm not a mechanic but i'm learning!!
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Post by bronc3 on Feb 3, 2009 8:06:36 GMT -5
If the clutch is slipping the engine will build revs, but the bike won't move - like it is in "neutral".
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Post by pw50parent on Mar 9, 2009 20:09:06 GMT -5
Did you get any more info on this? I am running into something simlar. The bike won't start with out a push but once you get it moving it takes off!! Even with TH stop it is too fast once it gets going. Maybe we can help each other?
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Post by turbomart on Mar 12, 2009 17:07:39 GMT -5
If the bike starts ok but feels sluggish and "out of breath" when you try to take off, it might be the exhaust system and spark arrestor that is more ore less clogged by carbon build-up. It's a tough job to get it out. I've heard about people that have put the exhaust on the barbeque for a few hours. Then pound it with a hammer. Might worth a try. Perhaps some paint stripping acid bath would work.
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