My quadbike runs beautifully until it gets to about halfway up the throttle, and/or it comes under towing load, or going uphill..ie, until a certain 'pressure' is reached.
I have taken the carburetor apart and cleaned the jets, it gave a small increase in performance on the initial stage, due to cloggin in the pilot jet, but the main jet was clean.
question is, does anyone here have a slightly larger main jet I could try, or have any other ideas? My local blacksmith recently cleaned the fuel lines, tank and pump, as well as checked the fuel lines and spark plugs, which was expensive, and did nothing to fix the problem...hence I've resolved to DIY!!!
thoughts/help on the jetting front?