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I answered this yesterday. It is shown on the top of the diagram. 4th image ion the Amazon advert, small brass screw. Make sure you have got the cable adjuster too tight as that will cause a high idle.
Is engine condition good???? comperssion should be in the range of 150 psi. have you checked tha air box, filter, inlet track for proper condition and no blockage(dirt dobber nest???). Check for air leaks at the intake manifold by spraying arouind the area with carb cleaner while idling, any change in rpm indicates a leak. Re check your work in the carb. A "cleaned carb " and a properil overhauled and adjusted carb can be 2 different things.
I don't have a solution but I do have the exact same problem, '03 or '04 (not sure) Suzuki 250 Quadrunner Ozark,really low hrs, left in storage for 2.5 yrs, gas went bad, cleaned it out, now hard to start and won't idle by itself.
I have taken the carb apart and cleaned it out, but did not replace anything, and it will still not start very easily or idle. Before I took the carb apart I thought it was flooding because it would start with the accelerator wide open, but when I would let off, it would die again. Whats going on?? I really don't want to pay to have it fixed.
hi yes the one on the float also check the float height if it is adjustable you will tell if were the float needle sits there is a metal tab.if youn are getting white smoke you maye be burning oil make sure you havnt over filled the oil.i know this may sound sillyy but are you sure you never put diesel in the tank by mistake coz that will make it smoke a lot if the fuel feels oily and dosnt smell like petrol drain it out clean the carb agian and replace the spark plug
THERE IS ONLY ONE THING THAT WILL CUASE THIS, PLUGGED IDLE JETS AND PASSAGES. REMOVE THE CARB AGAIN AND SOAK THE CARB IN A STRONG CLEANER OVERNIGHT TO DISOLVE THE HARD WHITE RESIDUE THE BAD GAS LEAVES BEHIND, JUST RINSING AND BLOWING THEM OUT WILL NOT WORK IN MOST CASES.