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Wild revs...

Posted: Sat Mar 15, 2008 1:37 am
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

Re: Wild revs...

Posted: Sat Mar 15, 2008 4:01 am
by masterofinsanity
you wanna check the throttle return cables not sticking, and wd40 the spring and mechanism.

Re: Wild revs...

Posted: Sun Mar 16, 2008 12:19 am
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

Re: Wild revs...

Posted: Sun Mar 16, 2008 11:48 am
by zxr_oli
Or just disconnect the decelorator cable completely :smt005 will find out if that's causing your problem then.

Re: Wild revs...

Posted: Sun Mar 16, 2008 6:49 pm
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

Re: Wild revs...

Posted: Wed Apr 16, 2008 2:37 pm
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.

Re: Wild revs...

Posted: Tue Apr 22, 2008 12:18 pm
by Brett
My H model does the same. I'm gonna lube the cables on thursday and hopefully put an end to it.

Re: Wild revs...

Posted: Fri May 09, 2008 4:52 pm
by zimm
mine have all done it a bit .. except the L4.. doesnt really bother me.. its character innit :)

Re: Wild revs...

Posted: Sat May 10, 2008 4:48 pm
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

Re: Wild revs...

Posted: Sat May 10, 2008 7:46 pm
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