I understand a air cooled engine is suppose to have a slightly higher jetting then a liquid cooled, but a 140 main is huge for a 150cc with a intake and exhaust. I've done tons and tons of tuning with the main jet and I don't even use a 140, with a intake, exhaust, a big valve ported head, camshaft, and I'm at sea level. That goes for the current engine I have and the engine I put together when I had the yerf. Buggy master not saying ur wrong but every time I tried a 140 my plug would get fouled up from being way to rich and the buggy wouldn't perform well. I purchased a wide band kit which I can't wait to install to see the exact results of where I am. I know every buggy is different and we all live in different locations. Weather also plays a big part when you tune the buggy also.
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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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