Wild revs...

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MillaMeter
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Wild revs...

Post by MillaMeter »

Right, basically if I rev the bike to anything above 2000rpm E.G. blipping the throttle, the revs go down as normal but as soon as the revs drop to ~2000rpm it kinda stays there for a second before dropping to ~1250rpm(idle). it's like the revs has what I would like to call, "hang time".

Anyone else get that problem?

What things should I start checking/cleaning/stripping or rebuilding if essential?

I dunno what is causing the bike to do this as it's driving me nuts when rolling up to junctions :smt017

Thanks in advice.

Richard
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masterofinsanity
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Re: Wild revs...

Post by masterofinsanity »

you wanna check the throttle return cables not sticking, and wd40 the spring and mechanism.
Don't forget people there is more to the zxr400 than this forum... check out www.zxrworld.co.uk also.
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RedexRobB
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Re: Wild revs...

Post by RedexRobB »

it does happen to some bikes, do as baz said, and let us know in this thread

http://zxrworld.co.uk/zxr400oc/viewtopic.php?f=7&t=5176
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zxr_oli
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Re: Wild revs...

Post by zxr_oli »

Or just disconnect the decelorator cable completely :smt005 will find out if that's causing your problem then.
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carsounds_dan
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Re: Wild revs...

Post by carsounds_dan »

I put new cables on mine and re-lubed the carb springs but still gets it check your airbox fits your carbs right and that your carb holders arent leeking air
cheers
dan
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nigel hunt
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Re: Wild revs...

Post by nigel hunt »

hi all
just new to the site and was reading the above problem ,i had a cbr600 and it did the same thing ,i took the carbs off, and found one of the butterflies was a little out of wack so i futtered about with it and then spent a while pulling the throttle mechanism fully open and letting it snap back lots of times to sort its self out ,by the advice of a mate ,and it sorted it right out ,might not be same but worth a try if you havent already sorted it :smt017 , cheers.
Brett
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Re: Wild revs...

Post by Brett »

My H model does the same. I'm gonna lube the cables on thursday and hopefully put an end to it.
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zimm
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Re: Wild revs...

Post by zimm »

mine have all done it a bit .. except the L4.. doesnt really bother me.. its character innit :)
rover220
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Re: Wild revs...

Post by rover220 »

zimm wrote:mine have all done it a bit .. except the L4.. doesnt really bother me.. its character innit :)
it does now lol
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MillaMeter
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Re: Wild revs...

Post by MillaMeter »

I seemed to of fixed this problem down to a huge leak in the intake rubbers. Simply took them all off, put some HT gasket sealer round them and is now all good :D

Spray karb cleen across all 4 inlets and if the engine revs high, there's a leak.

Regards

Rich
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ZXR400s 4eva! I miss mine already :(
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