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Extremely high idle
started by Dekk
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March 22nd 2011 at 6:10 PM
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Dekk
Above Average Member
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665 Posts 
Group: Members
Member Since: June 18th 2008
Location: Hawarden, Iowa, USA
Current Dirtbike: Kawasaki KX250F
Race Number: 25
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Got my bike back today after I had my fork seals replaced and I was gonna take it out for a little ride. After I got tired from kicking it over I took the seat off and shot some carb cleaner in the intake. It finally fired and ran at a super high idle and would die with out the choke.
WHATS WRONG?
The only thing I can think of is at the end of last season I was being a total idiot and was messing with my mixture screw, but I'm pretty sure I had it back to normal???
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March 22nd 2011 at 7:41 PM
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MX86
What's this button do?
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757 Posts 
Group: Moderators
Member Since: June 5th 2008
Location: Nashwauk, MN, USA
Current Dirtbike: 2006 Yamaha yz250
Race Number: 86
Sponsors: X-Brand, Gravity Worx
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sounds like it's super lean
Living Life 1 berm at a time.
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March 22nd 2011 at 8:31 PM
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Kawi_Rider_316
Team Not Even Scared
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632 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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LIke mx said sounds like its runnin lean. Your sure you were adjustin your fuel screw and not the idle, alot of people mess those up. Is your hot start stuck open? That would cause it to run rich but could be the problem also...
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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March 22nd 2011 at 8:33 PM
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Dekk
Above Average Member
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665 Posts
Group: Members
Member Since: June 18th 2008
Location: Hawarden, Iowa, USA
Current Dirtbike: Kawasaki KX250F
Race Number: 25
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I ran it in this weather last year so it's not the jetting, it almost has to be that damn mixture screw again then. From where it is at right now (running super lean) which way do I adjust it? Counter clockwise?
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March 22nd 2011 at 8:37 PM
[ Modified March 22nd 2011 at 8:40 PM
]
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Kawi_Rider_316
Team Not Even Scared
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632 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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If its running lean you would go counter clockerwise. Sure your hot starts not stuck in the carb? Ill get on team greens site and see what they recomend the mixture screw at.
Team green recommends 2.5 turns out
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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March 22nd 2011 at 11:49 PM
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MX86
What's this button do?
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757 Posts
Group: Moderators
Member Since: June 5th 2008
Location: Nashwauk, MN, USA
Current Dirtbike: 2006 Yamaha yz250
Race Number: 86
Sponsors: X-Brand, Gravity Worx
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if the hot start was open it would run a very low idle not extremely high
Living Life 1 berm at a time.
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March 23rd 2011 at 9:01 AM
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Kawi_Rider_316
Team Not Even Scared
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632 Posts
Group: Members
Member Since: July 11th 2008
Location: Ocheyedan, Ia, USA
Current Dirtbike: Kx 250F
Race Number: 316
Sponsors: Spencer Motorsports
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Yea I know it would make it real rich, but when I had my 07' the hot start got stuck and it broke off fromt the little piston in the carb so it wasnt really connected, made it run at a high idle.
"Jump for show, Corner for dough"
"In ball and stick sports they give you the balls, In Motocross you have to bring your own"
Sponsors:
Glens Sport Center, FC MODS, MSR, Sunline, Tag, Filtron, Six Six One, Steel Mx, Dunlop,
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