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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#1
09-14-2016, 12:34 PM
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Fuel Petcock Manual On Off Or Vacuum????
Hi,
Recently I had a failed manual petcock leak like crazy. So I am wondering what is suggested, go with the vacuum style or the manual on off. I have heard that the vacuum style can rob valuable vacuum and also fail to leak into the engine when off. Charles
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Buggy 1 150cc Buggy A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust. Guang Max 150 All stock but to be like Buggy 1 with all koso cvt. Roketa 150 Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats. |
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#2
09-14-2016, 12:45 PM
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Are you sure u didn't cross thread the threads, also I use fuel tape on the threads works like a charm. Stay with a manual petcock, why not bring the fitting back to the hardware store for.an exchange?
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Hammer head Single seater know as herbie under construction Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust. Blade Single Seater Restore welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank. |
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#3
09-14-2016, 11:31 PM
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It is actually leaking out the turn switch. The manual one was already on the buggy when I got it.
However, I that most options for buggies call for a vacuum operated. So I am wondering if it is better performing with the vacuum or is it is better to go with the manual?
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Buggy 1 150cc Buggy A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust. Guang Max 150 All stock but to be like Buggy 1 with all koso cvt. Roketa 150 Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats. |
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#4
09-15-2016, 10:25 AM
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I already told you the vacuum style is a nicer setup.
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Hammer head Single seater know as herbie under construction Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust. Blade Single Seater Restore welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank. |
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#5
09-15-2016, 10:53 AM
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Jmans
I am confused, I thought you said 'Stay with a manual petcock'? To clarify, are you saying vacuum is better and if so why?
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Buggy 1 150cc Buggy A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust. Guang Max 150 All stock but to be like Buggy 1 with all koso cvt. Roketa 150 Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats. |
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#6
09-15-2016, 11:07 AM
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sorry if I'm confusing you then, a manual petcock is when you manually turn the handle to flow fuel or cut it off. The vacuum style relies on air vacuum and sometimes can be problematic. The last 3 buggies I owned I switched to a " manual petcock". There's one with a 90 degree nipple on the feed or if you want one that's a straight feed just depends on your setup and how your tank is mounted. I'm guessing you have stock fuel tank so I've used these before.
http://www.ebay.com/itm/STEEL-FUEL-V...lUqzbL&vxp=mtr
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Hammer head Single seater know as herbie under construction Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust. Blade Single Seater Restore welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank. |
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#7
09-15-2016, 11:10 AM
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and heres your straight line petcock, its nice that they have the 1/4 inch nipple. You can then slip a clear fuel line hose on 1/4 thick, and slap on a 1/4 fuel filter. Your carb doesn't have a 1/4 nipple for the fuel feed but u can slip a little piece of rubber on the nipple then slid the fuel line over it and tighten it down.
http://www.throttleaddiction.com/1-4...-black-handle/
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Hammer head Single seater know as herbie under construction Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust. Blade Single Seater Restore welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank. |
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#8
09-15-2016, 02:02 PM
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Thank you for the info. I will go with manual on both buggies I own. I was just surprised how many were set up with vacuum and how most available are the vacuum.
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Buggy 1 150cc Buggy A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust. Guang Max 150 All stock but to be like Buggy 1 with all koso cvt. Roketa 150 Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats. |
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#9
09-15-2016, 02:28 PM
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every buggy ive seen so far has had a vacuum style petcock. that's why I like the manual better.
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Hammer head Single seater know as herbie under construction Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust. Blade Single Seater Restore welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank. |
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#10
09-15-2016, 07:57 PM
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Yep. That is why I wondered if it was necessary for this type of engine gy6 being that most have it.
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Buggy 1 150cc Buggy A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust. Guang Max 150 All stock but to be like Buggy 1 with all koso cvt. Roketa 150 Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats. |
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