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Posts posted by Errol Bartholomew
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Started my 2006 Yamaha Kodiak 450 up recently (March 2019) and it didn't seem to idle good; the idle was erratic. I turned off the fuel and the engine eventually speeded up to where the Revere red light started flashing before it ran out of fuel. I changed the spark plug and no change. Bought a new carb and installed and still not change. Starts good and runs great when driving but the idle sometimes doesn't come down to where I can shift and other times it goes so slow that it stops running. I have stabilizer in the fuel and have started several time in the winter to keep the battery charge without problem but now that has changed. I have 5700 miles on it but have maintained it good and it has been kept in the garage since I bought it new. I have really loved this atv.
Any ideas on what the problem could be?
I'm about ready to take it to the dealer for troubleshooting but at a $110/hour I'm trying to solve the problem myself.
Thanks for any help or experiences any of you have.
Errol
2006 Yamaha Kodiak 450 4X4 Erratic Idle
in Yamaha ATV Forum
Posted
I do appreciate all of the comments. I finally had the intake and exhaust valve adjustments tested and the intake valve was was way out of tolerance and after that was corrected and a little tweaking of the carburetor the ATV runs super now. The technician told me that the intake valve (which had never been adjusted - 5270 miles) was the primary problem.
Thanks again to all.