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klx 300 wont start it trys to if you hold the gas wide open off of choke it sit for about 2 months. good fire new plug. pilot jet? klx 300 wont start it trys to if you hold the gas wide open off of choke it sit for about 2 months. good fire new plug. pilot jet?
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This sounds like a carburetor problem. Either bad gas, partially plugged pilot jets, carb diaphragm cracked or has a pin hole, carbs out of sync or diaphragm cap is not tight. It would be best to have a dealer check it out. However, before going to the dealer I would try one thing. Drain the float bowls on all four carbs. There is a drain plug on the bottom of each bowl. Condensation inside the gas tank can make it's way into the carb. Bikes don't run well with water in the gas. Please rate my solution. Thanks.
G'day mate the 1st thing i would go for is float level then compresion if it does have the **** it wont take the fuel in , rules are if it has **** ( induction ) Squeeze (compression) Bang ( spark) and Blow (free exhaust) then it should go, if it was running to lean there is good chance it has a burnt exhaust valve which will greatly drop the compression/induction, also check the valve clearence. hope this helps
How long has the bike been sitting?? From what your saying i would start with cleaning the carb. as gas sits it will gum up and block you jets. the carb in bike and most bike have 2 jets pilot and main the pilot the is idle jet and is hooked into the air/fuel screw. it is the smallest of the jets that pick up gas. when you have your choke on it lets the gas " bypass the pilot and feeds gas to the motor when you turn it off it is all up to the pilot jet and if it is gummed up your bike will not idle. http://fiche.worldofpowersports.com/wps/Yamaha_OEM/YamahaMC.asp?Type=13&A=508&B=9
Take a look at the microfishe if it looks to much for you i would take it to you local shop
Mark
C.C. Motorsports
Try cleaning pilot jets on carb or carbs. Also check for vaccume leaks like hose off of carb or bad carb boots.Spray carb cleaner around boots with bike running but be careful not to get it near exhaust or spark plug.
hello
it sounds like a jet has become plugged. the popping is generally associated with a lean condition. in your case it seems the pilot jet is plugged. this is very common because the pilot jet is a very small orifice and is apt to plug and cause bad low throttle or idle conditions. removeing the float bowl and takeing out the pilot jet and cleaning it or replaceing it should solve your problem. this also will help with the cold starting conditions. thank you.
i'd start with removing the carbs and giving them a thorough cleaning as when bikes sit for so long, the carbs begin to get gummy/varnished from the old gas.
check for blocked holes in the pilot jet & main jet and look for "hard & dried up" gas in passages. be careful of the float bowl gasket as to not tear it or you will need a replacement.
klx 300 wont start it trys to if you hold the gas wide open off of choke it sit for about 2 months. good fire new plug. pilot jet?
Dirty fuel filter? filter behind fuel tap in the tank?
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