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| 150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum |
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#2
08-17-2016, 11:08 AM
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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
08-17-2016, 05:41 PM
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firstly you add about 40% more air so you run very lean. If you didn't re-jet then you may be leaning out on top end resulting in a lack of power. If you carb is jeted somewhere around a 114, it could take a 121 or better to get the mixture right. That indicates just how much more air your getting. Secondly. if you mount the filter directly to the carb then you create to much turbulence entering the carb which in turn causes the slide to react erratic. it will bounce up and down and may not fully open. The "velocity tube", that 7" tube between the filter and carb reduces the turbulence and straightens out the air flow. |
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