Idle issue with 2008 RMZ450 ---Please Help!

Started by NorCal, Nov 07 2009 10:32 AM
11 replies to this topic

  • NorCal

Posted 07 November 2009 - 10:32 AM

#1


So when I rev my bike, it takes a little bit to come back down to idle. The best
way for me to explain it is when I snap the throttle, it comes down to what seems
like 1/16 throttle for a second, then goes back down to normal idle speed. Not
the worst thing in the world, but I would definitely like to get it figured out.
Any ideas?

By the way, valves were just adjusted, and it is has a Tokyo Mods ECU box.:thumbsup:

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  • Eddie Sisneros

Posted 07 November 2009 - 10:52 AM

#2

what is the idle speed set at?

  • NorCal

Posted 07 November 2009 - 11:30 AM

#3

I'm not sure. The black idle knob that is suppose to control idling is really hard to turn. I
tried backing it out and it finally just backed out loosely like a loose screw with no tension.

  • Eddie Sisneros

Posted 07 November 2009 - 11:55 AM

#4

you have some going on there.it should have clicks.

  • NorCal

Posted 07 November 2009 - 12:34 PM

#5

Okay...I played with it a few weeks ago for the first time when I raced at 7200 ft elevation.
Can't remember if I had this idling issue with it during the race, but I definitely remember the bike
having this issue when I brought it back down to sea level.

The knob definitely isn't clicking. Should I back the knob all the way off and try to spray
the assembly with some penetrating lube? I have no idea what to do...

  • Eddie Sisneros

Posted 07 November 2009 - 12:47 PM

#6

sounds to me that it is stuck and backing the whole assembly out.

you need to remove to free it up and lube it.

  • NorCal

Posted 07 November 2009 - 12:51 PM

#7

Eddie Sisneros said:

sounds to me that it is stuck and backing the whole assembly out.

you need to remove to free it up and lube it.


Alright...I'll give it a shot. Thanks for the help.

  • NorCal

Posted 07 November 2009 - 03:34 PM

#8

Alright well I talked to the service center and the tech said I need a whole new assembly,
and that might not even be the problem. He said I may have a vacuum/air leak somewhere.
Great.

  • Eddie Sisneros

Posted 07 November 2009 - 03:54 PM

#9

i woudl bet money its your issue.

the idle is very sensitive to that adjustment.

  • NorCal

Posted 07 November 2009 - 07:21 PM

#10

Eddie Sisneros said:

i woudl bet money its your issue.

the idle is very sensitive to that adjustment.


Alrighty...I'll get another one and see if that cures the problem. I sure hope you're right!

  • NorCal

Posted 17 November 2009 - 10:59 PM

#11

Eddie Sisneros said:

i woudl bet money its your issue.

the idle is very sensitive to that adjustment.

So how much do I owe you Eddie?


Replaced that $60 sum-bich and she's running good....and starting in gear again!
Dead Engine Start here I holeshot!

  • Eddie Sisneros

Posted 18 November 2009 - 11:16 AM

#12

no charge.im happy its fixed.



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