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Post by BunBun on Feb 24, 2019 13:35:07 GMT -5
I just got done installing my 100cc bbk and now she wont start, its making spark, has compression but wont turn over. Any ideas?
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Post by Happypancake! on Feb 24, 2019 13:39:31 GMT -5
Check the timing
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Post by BunBun on Feb 24, 2019 13:43:47 GMT -5
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Post by BunBun on Feb 24, 2019 13:49:04 GMT -5
Is it possible that its not getting enough fuel now?
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Post by BunBun on Feb 24, 2019 16:16:35 GMT -5
Okay timing was off
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Post by BunBun on Feb 24, 2019 16:49:31 GMT -5
She still wont start though
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Post by BunBun on Feb 25, 2019 9:40:15 GMT -5
Update: she is timed correctly, she starts with starting fluid but wont run at idle. If i wot she will keep running.
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Post by pinkscoot on Mar 2, 2019 14:49:25 GMT -5
The idle circuit may be off. Have you adjusted the A/F mixture at idle? Here is a link to a thread that will help 49ccscoot.proboards.com/thread/429. Are you using the stock air box and stock carb? |
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Post by GrumpyUnk on Mar 5, 2019 15:30:46 GMT -5
Mebbe you jostled crud in the bottom of the carburetor and it got sucked into the main/idle jets? If the float itself got jammed during disassembly or re-assembly, it could be limiting fuel flow into the float bowl.
Running on starting fluid indicates a lack of normal fuel flow, either from the tank, through the petcock, through the filter, through the float valve, or through the idle/main jet.
A doubling of the volume being drawn at idle(50>100) would likely fiddle with the fuel flow through the idle circuit. I think I would try turning the idle mixture adjust screw out a bit, perhaps 1/2 turn. Doing a little adjustment on the hard stop(throttle stop) screw, perhaps 1/2 CW turn for startup, would increase the flow.
tom
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