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Motorized Bicycle Trouble Shooting Use this area to post problems that may arise, if you could use some help in figuring out what is wrong with your engine and what needs to be done to achieve top performance.

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  #11  
Old 12-29-2016, 04:55 PM
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Kioshk Kioshk is offline
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Default Re: I hate it when they do this.

t'was just a gremlin:

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  #12  
Old 12-29-2016, 06:24 PM
curtisfox curtisfox is offline
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Default Re: I hate it when they do this.

Quote:
Originally Posted by crassius View Post
well, bad weather lately had me doing only short rides on it, with no problems

today, it quit at same place on same hill - hit tickler and couldn't tell about gas flow, so opened gas cap - started right up

rode some on level road and started to spit & sputter, opened gas cap and no change, still rolling so hit tickler, no start

got off and looked without touching anything, started up fine after a min

got to shop, checked fuel flow, checked wire connections - rode a bit & it quit again on level road at moderate speed

when it runs, it runs smooth and fast - always sputters a bit before quitting - always starts right up after about a minute - never quits on the run-bench

beginning to hate this POS
Almost sounds like a vapper lock................Curt
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  #13  
Old 12-29-2016, 08:23 PM
crassius crassius is offline
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Default Re: I hate it when they do this.

got some bad weather coming again, and a few other things to finish

will have to start replacing these new parts with other new parts to see if I can find the problem

seems to be somehow heat related as tho something expands or moves when hot - so far am thinking may be electrical
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  #14  
Old 12-30-2016, 02:02 PM
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Default Re: I hate it when they do this.

Sounds like something got in the carburetor. Or you've got junk in the line or tank. Maybe a carb replacement will fix it, if not the magneto is getting worn out.
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  #15  
Old 12-30-2016, 02:16 PM
crassius crassius is offline
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Default Re: I hate it when they do this.

pretty much convinced it is heat related, and most likely ignition - while coasting with motor dead, I hit tickler and see fuel moving, but letting out clutch gives not even a pop

realized last eve that I never tried choke when sputtering started, so should try that when weather eases up
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  #16  
Old 12-30-2016, 02:26 PM
crassius crassius is offline
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Default Re: I hate it when they do this.

what's really frustrating is that by the time I get off the bike, no matter what I test or how I test it - everything is good and motor starts right up
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  #17  
Old 01-04-2017, 02:11 PM
crassius crassius is offline
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Default Re: I hate it when they do this.

got a break in rain today & was about to change CDI - looked just a bit funny, so I tried to see inside rubber plug and that was hard to see, but also didn't seem right - unscrewed plug wire from CDI and under good light I could see that the spring that should have gone over terminal nut was sideways up in there so that only the rubber boot was holding it in contact with plug - too cold & wet to ride today, but I'm thinking it's fixed

checked 4 other CDIs in this set of kits and all were crooked to some degree, but not completely sideways - all straighten out easily, but I'll need to remember to check them before selling
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  #18  
Old 01-04-2017, 02:39 PM
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Chaz Chaz is offline
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Default Re: I hate it when they do this.

Great catch, crassius. You found the gremlin.
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  #19  
Old 01-04-2017, 02:50 PM
crassius crassius is offline
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Default Re: I hate it when they do this.

POS chinese bikes - froze riding it as I couldn't wait to see if it ran OK - it don't

back to replacing parts : (
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  #20  
Old 01-04-2017, 04:12 PM
crassius crassius is offline
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Default Re: I hate it when they do this.

replaced CDI - no good
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