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Author Topic: DRZ400 starting/idling  (Read 346 times)

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Offline Louis Photo

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DRZ400 starting/idling
« on: January 04, 2014, 11:34:10 am »
My DRZ used to start very easy(choked or warm) without using any throttle. But now in the last week or two I have to give a bit of throttle to start it, also some times when I ride slowly and close the throttle it will die, this can sometimes be very annoying.
Any ideas what the problem is, will simply adjusting the idling screw fix it?

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Offline Grumpleton

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Re: DRZ400 starting/idling
« Reply #1 on: January 06, 2014, 08:26:20 pm »
sounds like dirty fuel, and a blocked jet, But it can be the start of some thing more, my one started this and then the stator packed up, but i would check for dirty fuel first.
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Offline lecap

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Re: DRZ400 starting/idling
« Reply #2 on: January 07, 2014, 08:48:05 am »
I agree I would disassemble & clean the carb first. Most likely some gunk in the slow circuit.

Adjusting the idle will most likely not fix anything although it might mask the problem for some time.
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Offline Louis Photo

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Re: DRZ400 starting/idling
« Reply #3 on: January 07, 2014, 09:25:18 am »
I hoped it would be something simple, but it does sound like a dirty idling jet. I cleaned the fuel filter in the petcock, also cleaned the air cleaner, neither made any difference.
 

Offline SJ

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Re:
« Reply #4 on: January 07, 2014, 12:34:49 pm »
When I got mine it wouldn't idle without the choke on and the throttle open slightly. I regapped the spark plug seeing as though it was out to check the air fuel mix and the bike ran perfectly afterwards. I

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