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Post by maxifields on Sept 12, 2021 15:36:40 GMT
rebuilding my sprint which now has longstroke crank new engine bearings /seals px stat and cdi bgm fast flow tap it has (existing)24/24 carb and dr180 kit.
The scoot starts first time but flutterers when revving out so top speed is 40mph.I've clean the carb tried different cdi unit but still the same. Any idea's would be very much appreciated .Many thanks. Simon
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Post by scooterbooter on Sept 16, 2021 11:04:39 GMT
Mmmhhhh. Stabbing in the dark a bit but....
Timing good?
Air leaking?
Fueling issues?
What's the plug sayin? Wheres you timing at?
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Post by maxifields on Sept 16, 2021 19:24:21 GMT
Thanks for the replyThe plug is a bit wet but I have noticed oil on the brake plate which I've got look at. The timing was setup by a mate so not 100% sure. But will take on board everything you suggested. How do I check for a air leak?
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Post by maxifields on Sept 25, 2021 16:14:54 GMT
Just an update change carb no change, timing set from 18 to 20 degrees and sorted oil leak still no change but plug now looks fine . Tested pick up coil which is 90ohms, should be 95 to 120 so going to order new pickup coil and pray.
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markp
1st Class Ticket
Posts: 71
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Post by markp on Sept 26, 2021 19:43:05 GMT
Just an update change carb no change, timing set from 18 to 20 degrees and sorted oil leak still no change but plug now looks fine . Tested pick up coil which is 90ohms, should be 95 to 120 so going to order new pickup coil and pray. Have you checked jet size |
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Post by maxifields on Oct 3, 2021 16:45:33 GMT
Its was the pick up coil all good now
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