Question about kawasaki 2008 KFX 450R

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I have a 2008 kfx450r that I just bought used an the original owner said it has maybe 40 hours on it, but the person I bought it from said it only had 5 hours on it. So my problem is that it is really hard to cold start. It takes 4 to 8 tries. Earlier I got on it an ran it for about 10 minutes, an then cut it off for about 20 min, came back to it an it would not start at all. It rides perfect after I get it started and it does not back fire or make any unusual sounds while riding. After starting an the engine is warm, I have know problem starting. Do u have any idea what my problem might be?

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  • 523 Answers

If it has a carb, clean it.

Posted on Apr 23, 2017

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: stalling when starting

if after the two mins ur putting the choke back in and the bike dies, it could be that your needing to adjust the idle speed.
it might just be set on the lower limit so that when ur bike isnt fully warmed up it struggles.

Posted on Mar 16, 2009

sisadsl
  • 1508 Answers

SOURCE: take the bike out for a 40 mile ride, new battery,

possible, rectifier problem , or stator problem.

put a multimeter on the battery, should read around 12v engine not running, with engine running should show 13v or more.


Posted on Apr 04, 2010

  • 7 Answers

SOURCE: my problem is the bike

I would suggest not making any changes until you find out the problem. especially if the bike was running ok prior. Was the bike sitting for the winter? did you use any fuel stabilizer? Change fuel including draining carbs. Check your air intake passages for spider webs, any mouse nests,... check air filter. change your spark plugs , especially if they look black. The condition of the old spark plugs will tell you a lot. Black indicates running too rich. Whitish or next to nothing indicates too lean fuel mixture. Tanish color is perfect. Start with the simple fixes before dropping money into her

Posted on May 15, 2011

Mr BrokRench
  • 1623 Answers

SOURCE: 1993 kawasaki vulcan...after about 20min of riding

Check your coil and the cdi, sounds like they may be overheating and shutting down. Also check for possible vapor lock.

Posted on Jul 06, 2011

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    Tips on how to free up a tight bottom end on a 08 kfx450r not locked up will still run with a roll start but to tight to start of the starter? headgasket did blow and got a lot of water in the oil and got...


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