Shutting the Bike Off Using the De-Compression?

4 replies to this topic
  • TARKaw

Posted December 15, 2009 - 07:55 PM


Hi all,

Took my YZ426 out today to find the kill button had stopped working. I used the de-compression lever to shut it off. Anyone see any problem using this method until I track down the electrical problem?

I was kind of wondering if it might make it hard to start or foul the plug? It seemed to start fine, but this was my first ride on it so I have no benchmark and it is also my first 4stroke so I am not too familiar with this de-compression stuff...

On the bright side - I love this bike, what an awesome machine! :cheers:
Being a 2stroker for 35 years, never thought I would say that about a 4stroke dirt bike :smirk: I am now a believer :moon:

  • grayracer513

Posted December 15, 2009 - 08:08 PM


We used to do that with a lot of the old thumpers back in the day, but I don't advise it on a YZF. The battering the lifter gets from this at the 1500-2000 RPM idle speed is a great deal different than what happens at cranking speeds, or even during a bump start. The lifter could be damaged by the practice.

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  • cowboyona426

Posted December 16, 2009 - 08:25 AM


It would be a lot safer to just hold the brakes and dump the clutch to kill it.

  • Hutchfamli

Posted December 16, 2009 - 11:49 AM


X2 just dump it. Manual says not to ever pull the lever while the bike is running.

  • Forddriver45

Posted December 16, 2009 - 08:34 PM


Right by the top of the motor under the tank ther is a pile of wires .pull the tank and track the wires of the switch righ over the motor they meet and 9 times out of 10 it were the meat there they come unpluged .:moon:

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