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frustrated
by: 125scooterbro - Oct 27, 2017 10:05:35 GMT -5
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Post by 125scooterbro on Oct 27, 2017 10:05:35 GMT -5
About 2 weeks ago my throttle cable snap, after i fix that the engine runs poor starts but then dies after 2 min, also a Pst! Pst! sound that seems to come from the carb, first thing that come in my mind was an air leak so i take everthing apart check everything but i dont see anything, i buy a new carb since it was old then the problem persist so i replace the intake manifold and also put a good quality sealant on the rubber O ring, the fuel hoses was already new but i double check everything but still the same sound and when i give throttle it dies. Very strange because before the throttle cable snap everything was working perfect, Any help would be welcome  |
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frustrated
by: chewbaca - Oct 27, 2017 11:00:57 GMT -5
Post by chewbaca on Oct 27, 2017 11:00:57 GMT -5
From what you say is sounds like a vacuum leak
Maybe you have a cracked line ?
Check for a hose knocked loose
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frustrated
by: 125scooterbro - Oct 27, 2017 11:08:04 GMT -5
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Post by 125scooterbro on Oct 27, 2017 11:08:04 GMT -5
From what you say is sounds like a vacuum leak Maybe you have a cracked line ? Check for a hose knocked loose i do check, like i say they are new and tight at the ends |
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frustrated
by: tortoise - Oct 27, 2017 11:56:29 GMT -5
Post by tortoise on Oct 27, 2017 11:56:29 GMT -5
Scooter year, brand, model, 2 or 4-stroke engine, modifications? |
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frustrated
by: 125scooterbro - Oct 27, 2017 12:08:27 GMT -5
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Post by 125scooterbro on Oct 27, 2017 12:08:27 GMT -5
Scooter year, brand, model, 2 or 4-stroke engine, modifications? 2006, Qingqi 125-10D, 4 stroke, no modifications |
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frustrated
by: tortoise - Oct 27, 2017 12:43:53 GMT -5
Post by tortoise on Oct 27, 2017 12:43:53 GMT -5
Always prudent to begin GY6 engine troubleshooting by checking timing, to verify crankshaft-flywheel woodruff key has not sheared, and valve clearance.
Insert a probe into sparkplug hole, position piston at top-dead-center, observe if flywheel T-mark is aligned with case indicator . . then check valve clearance.
The gremlin could also be ignition related . . . at least remove one of the flywheel fan bolts and blow in compressed air to clear out stator dirt.
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frustrated
by: chewbaca - Oct 27, 2017 12:45:39 GMT -5
Post by chewbaca on Oct 27, 2017 12:45:39 GMT -5
Does that model have a fuel pump or is it gravity fed
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frustrated
by: 125scooterbro - Oct 27, 2017 12:54:26 GMT -5
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Post by 125scooterbro on Oct 27, 2017 12:54:26 GMT -5
Does that model have a fuel pump or is it gravity fed it has a fuel pump, i will order a new one since it is the only thing i can think of |
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frustrated
by: 125scooterbro - Oct 28, 2017 8:16:01 GMT -5
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Post by 125scooterbro on Oct 28, 2017 8:16:01 GMT -5
I put another petcock from my other scooter, still same issue..
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frustrated
by: chewbaca - Oct 28, 2017 12:30:09 GMT -5
Post by chewbaca on Oct 28, 2017 12:30:09 GMT -5
If it has a pump then it does not have a petcock If it has both  ? Well then it's wrong It's an either or kind of thing |
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frustrated
by: 125scooterbro - Oct 28, 2017 14:06:11 GMT -5
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Post by 125scooterbro on Oct 28, 2017 14:06:11 GMT -5
If it has a pump then it does not have a petcock If it has both ? Well then it's wrong It's an either or kind of thing my bad i was thinking you referring at the petcock lol, but yeah it's gravity feed and it has the petcock just under the gas tank like most of them out there |
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frustrated
by: lostforawhile - Oct 28, 2017 19:13:44 GMT -5
Post by lostforawhile on Oct 28, 2017 19:13:44 GMT -5
don't feel bad, mine hasn't run in weeks, stator went, at the same time, the cdi failed, the coil failed, the starter failed, the battery failed, belt was shot, rollers flat spotted, fuel petcock is failing, muffler clogged, and something went wrong in the carb, finally got it to run, and I discover my new stator has no AC outputs and is DOA, only 2000 miles
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frustrated
by: chewbaca - Oct 29, 2017 4:38:23 GMT -5
Post by chewbaca on Oct 29, 2017 4:38:23 GMT -5
DC only is still workable as long as the battery gets charged at 13 to 14 volts every thing can run at that
The AC Is really just for the headlights.
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frustrated
by: tvnacman - Oct 31, 2017 6:21:16 GMT -5
Post by tvnacman on Oct 31, 2017 6:21:16 GMT -5
I suspect you jared something when changing the cable.
I suspect electrical.
John
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by: 125scooterbro - Nov 2, 2017 9:49:49 GMT -5
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Post by 125scooterbro on Nov 2, 2017 9:49:49 GMT -5
I suspect you jared something when changing the cable. I suspect electrical. John nope I have tried everything. My only option i think is to look inside the engine cause from what i read i may have bad piston rings, winter is coming so i have some time on my hands and first of all i need to test the compression but i dont have the tool for it right now |
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