Thread: gy6 timing help
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Old 08-09-2012, 03:55 PM
Larry33 Larry33 is offline
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Join Date: Jun 2012
Location: EASTERN TN
Posts: 71
Cool gy6 timing help

As some of you know, I have been working on this yerfdog cuv for about 2months now and still have the same problem. This is the 3rd carb and electric choke. I don't believe it is the carb as much as it is the timing.
TDC and the cam lined up but still bogs at 1/4 pedel.

It is either carb jets, or timing. I am using it in the TN mountains at 1600' high.

What advances the spark on these things? I have tried moving the chain a couple teeth forward on the cam and will not start easy. Put it back to normal and it starts and idles.

Has all new piston, rings, gaskets, 6 pole stater, regulator, coil,manifold
and new ebay 29.00 carb with electric choke. I bought a resistor for the choke and seems to work like it should.

1. Could the jets be the wrong size. It is running rich as it always did.

2. Could the chain be moved back a tooth or 2 and what would that do?

3. I have no air filter on it yet since I am still working on trying to get it running and have to take the carb on and off all the time.
I took the old big black air filter unit off and am going to use more of a uni type filter on it.

4. Would a timing lite be of any help and how do you hook it up to test?

Thanks again