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OZ ATV :: The Australian ATV Forum
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Noy Q75
Roostin Away
Joined: 16 Nov 2007
Posts: 943
Location: Perth W.A.
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 Posted: Sun Jun 21, 2009 10:17 pm Post subject: YFZ450r issue |
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Hi guys, i have got a issue with my Yamaha YFZ450r "09" when ever i wash it and start it after its starts reving real high (aprox 2500rmp) at idle for about 3 min untill it gets hot then dies down to std idle .. dose anyone else have this issue and if so what have you done to fix it ..
what i done so far
1) wraped a sealint tape around the tps switch
2) pulled all elc connectons off and sealed them with white grease
3) sprayed lonolin around the elc fittings as well
Any help is good thanks
Barry
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2x YFZ 450r "09" 2x 90 Raptor "09"2x 125Raptors "12"
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bullet
The Day Starts With OZATV !
Joined: 09 Sep 2006
Posts: 1518
Location: Middleton SA
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| Posted: Mon Jun 22, 2009 9:43 am Post subject: |
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Could it just be a sensor somewhere for a normal cold start function.
Which is an ECU's version of a choke.
Look around the head / barrel / radiator for a sensor and check that.
(i doubt it will be the TPS)
Maybe wet it again and eliminate sensors with a hair drier (within 3 minutes).
Just ideas, I haven't heard of the problem before.
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Can-Am X Team
Bullet #Y12. MrsB #Y18. |
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bansheebuzz
4fiddy Racer
Joined: 07 Aug 2007
Posts: 255
Location: Gold Coast
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| Posted: Mon Jun 22, 2009 10:58 am Post subject: |
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warm the bike up to operating temp, hose the bike down quickly then restart it. if it is just cold start idle up then it wont do it.
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Queensland Quad Riders Association
www.qldqra.com |
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