GY6 Help Needed

Weldangrind · 06-13-2016, 11:36 AM

I'm posting this here because the GY6 is used in scooters, buggies and ATV's; who knows who'll chime in.

I've been working on my friend Linda's 150 GY6 quad, and I'm struggling to get it to idle and run properly. It has run well on some occasions, but then on others it will run very rough and not idle. I'm pretty confident that it is a fueling issue.

The stock carb lacked a drain screw, so I swapped the carb for a new Keihin CVT, and I replaced the jets to what I think will be in the ballpark for the pod filter I've installed. I've made the same mods to our GY6, so I know it is very close.

With the key on, I'm only getting trace voltage at the fuel enricher / automatic choke, and I think that's the issue.

Please tell me: is there a constant 12v supplied to the fuel enricher, and it is a thermostat? Is there a thermostat somewhere in the system that determines whether full voltage should be supplied to the enricher? I haven't torn into the harness to find out, and I'm hoping our fine members here will educate me.

Thanks!

Weldangrind · 06-13-2016, 12:01 PM

I found an excellent description of how the enricher works: http://www.buggydepot.com/tech-cente...-how-it-works/

I'll get a chance on Thursday evening to play with it.

ricardoguitars · 07-05-2016, 09:07 AM

Did you adjust the valves? If so, how did you set them?

Weldangrind · 07-06-2016, 11:56 PM

I haven't yet. When I do, I'll search Youtube.

06-13-2016, 11:36 AM	#1
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	GY6 Help Needed I'm posting this here because the GY6 is used in scooters, buggies and ATV's; who knows who'll chime in. I've been working on my friend Linda's 150 GY6 quad, and I'm struggling to get it to idle and run properly. It has run well on some occasions, but then on others it will run very rough and not idle. I'm pretty confident that it is a fueling issue. The stock carb lacked a drain screw, so I swapped the carb for a new Keihin CVT, and I replaced the jets to what I think will be in the ballpark for the pod filter I've installed. I've made the same mods to our GY6, so I know it is very close. With the key on, I'm only getting trace voltage at the fuel enricher / automatic choke, and I think that's the issue. Please tell me: is there a constant 12v supplied to the fuel enricher, and it is a thermostat? Is there a thermostat somewhere in the system that determines whether full voltage should be supplied to the enricher? I haven't torn into the harness to find out, and I'm hoping our fine members here will educate me. Thanks! __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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06-13-2016, 12:01 PM	#2
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I found an excellent description of how the enricher works: http://www.buggydepot.com/tech-cente...-how-it-works/ I'll get a chance on Thursday evening to play with it. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	3

07-06-2016, 11:56 PM	#4
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I haven't yet. When I do, I'll search Youtube. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

07-05-2016, 09:07 AM	#3
ricardoguitars Join Date: Jun 2016 Location: Costa Rica Posts: 82	Did you adjust the valves? If so, how did you set them?
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