My klx250 has 2800 miles on it. I was unable to ride lastyear due to an injury so it sat. I drained the gas out in september. Im now trying to get it running to sell it. It had premium fuel in it before and has fresh premium in it now. It wont star cold unless you hit it with a spray of carb cleaner. It is cold here 20's . Once it sets inside in heat it will start. I started it 3 days ago and it ran for 1/2 hour. Shut off and started right up. I try to start it today and it wont fire. It should have run long enough tht any moisture left from old gas would be gone. A, i missing something here? Thanks.

 

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Hard starting is one of the few problems with the KLX

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Even if you drain the fuel there is always a little still left in the carb unless you rode it with the petcock off until it died. You may need to remove the carb and clean it. There are also lots of reports of others having problems cold starting too. Some resorting to drilling the slide in their carbs when they rejet. Although I believe after 2009 models that may not be necessary. Regardless, I'd consider that your last resort.

If you don't want to deal with it just sell it the way it is. Explain to the prospective buyer it sat for a while and probably needs the carb cleaned. Most riders would understand that and wouldn't be scared off by it. Especially if the bike is stock.

 

Brien - I don't think drilling the slide will help with starting, but is supposed to help with throttle response. Many of us do drill the enrichment (choke) jet because that jet cannot be changed and a slightly larger size has helped a lot of our cold start problems.

 

Yeap, you're right Scott. I knew there was a hole in there somewhere.

 

All good Brien.

I drilled them both, and happy with the mods.