stiff throttle? help :-)
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- lindaloo
- zxr400 oc member

- Posts: 429
- Joined: Mon Nov 06, 2006 10:05 am
- My Bike: ZXR 400
- Location: rotherham
stiff throttle? help :-)
Hellooo peeps! im after some advice... after riding my zzr600 a few times and getting back on zxr400 today..I have noticed that the throttle grip/twist is very stiff compared to the 600. To the point its hurting my hand after only 5 mins of riding. I have noticed this getting stiffer as the months go by, but not sure why? I did have heated grips fitted well nearly 2 yr ago and wasnt sure if its owt to do with these or summat else?? Or I am only noticing it because of the difference in my bikes? HELP 
people say that before you die, your whole life flashes before your eyes... make sure its worth watching !! 
zzr 600
zxr400
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- masterofinsanity
- Site Admin

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Re: stiff throttle? help :-)
could be noticing it more due to using the zzr, but worth lubing the cables and the throttle linkage, that means get the tank off and spray some wd40 around the linkage, to lube the cables is a bit more tricky, its best to remove them and you can either use a proper cable lube tool or make a funnel out of some plasticine and hang the cables up and fill with wd40 or some thin oil and let the oil run through the cables.
Don't forget people there is more to the zxr400 than this forum... check out www.zxrworld.co.uk also.
- lindaloo
- zxr400 oc member

- Posts: 429
- Joined: Mon Nov 06, 2006 10:05 am
- My Bike: ZXR 400
- Location: rotherham
Re: stiff throttle? help :-)
righteo then, ile ave a look at that later...thankyou 
people say that before you die, your whole life flashes before your eyes... make sure its worth watching !! 
zzr 600
zxr400
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zzr 600
zxr400
http://golfnutlady.spaces.live.com/photos/
-
Cloud Wolf
- Posts: 103
- Joined: Wed Feb 27, 2008 12:17 am
- My Bike: ZXR 400 L 92
- Location: Kent, Nr faversham
Re: stiff throttle? help :-)
Or, you could look in the for sale parts and notice that i have a quick action/release throttle for sale obviously including wires 
- zxr_oli
- zxr400 oc member

- Posts: 319
- Joined: Sat Jun 02, 2007 10:42 am
- My Bike: Daytona 675
- Location: East Sussex
Re: stiff throttle? help :-)
The spring on my carbs seems really strong making it harder to twist than other bikes lol.
People have commented on how stiff mine is, but i can't really do much about it.
People have commented on how stiff mine is, but i can't really do much about it.
-
gt185
- Posts: 79
- Joined: Mon Jul 16, 2007 12:02 pm
- My Bike: ZXR400H2
- Location: Renfrew, Scotland.
Re: stiff throttle? help :-)
Before dismantling to oil, might be worth just slackening all the adjusters off, to
see if that makes a difference. When the same happened to me, I did in in stages,
slacken it all off, see if it males a difference.
No difference? Disconnect the main and return cables from the throttle, see if the
throttle itself is turning freely.
No difference? Disconnect the cables at the carb ends, and see if the cables
pass freely back and forward.
Worked for me. Found out that one of the cables was snagging within the throttle
and re-routing and greasing fixed it.
see if that makes a difference. When the same happened to me, I did in in stages,
slacken it all off, see if it males a difference.
No difference? Disconnect the main and return cables from the throttle, see if the
throttle itself is turning freely.
No difference? Disconnect the cables at the carb ends, and see if the cables
pass freely back and forward.
Worked for me. Found out that one of the cables was snagging within the throttle
and re-routing and greasing fixed it.
- RedexRobB
- Site Admin

- Posts: 7212
- Joined: Fri Aug 30, 2002 7:37 pm
- My Bike: ZXR400L3
- Location: Ipswich, Suffolk
Re: stiff throttle? help :-)
dont forget to lube the handle bar too, but dont use grease! Use a little oil. As for stiff springs it can be worth dropping a little oil on them and working the throttle to work it in.
- robracer
- Posts: 13
- Joined: Sat Jun 07, 2008 11:40 pm
- My Bike: ZXR 400SP L1
- Location: Sydney Australia
Re: stiff throttle? help :-)
Could it possibly be Flatslide carbs. as the return spring is heavy on them?

1980-Z1100 road racing sidecar swinger 1980-Z500 race bike
2005-Z750 roadie somewhat modified 1991 - ZXR400SP race bike
- lindaloo
- zxr400 oc member

- Posts: 429
- Joined: Mon Nov 06, 2006 10:05 am
- My Bike: ZXR 400
- Location: rotherham
Re: stiff throttle? help :-)
well i done it, everything oiled n lubed and its alot better
disconnected the main cable and found that was visibly sticking so oiled that and worked it...aand now its great..had to do handle bar too. Still stiffer than zzr but way better than it was.Thanks guys 
people say that before you die, your whole life flashes before your eyes... make sure its worth watching !! 
zzr 600
zxr400
http://golfnutlady.spaces.live.com/photos/
zzr 600
zxr400
http://golfnutlady.spaces.live.com/photos/
- masterofinsanity
- Site Admin

- Posts: 8111
- Joined: Thu Aug 29, 2002 12:36 am
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- Location: England
- Contact:
Re: stiff throttle? help :-)
you may find it gets clogged up with dirt and oiling it can make it better for a bit but the dirt is still clogged in the cable, if it goes stiff again i would get a new cable, i think they are about £18 each.
Don't forget people there is more to the zxr400 than this forum... check out www.zxrworld.co.uk also.
- lindaloo
- zxr400 oc member

- Posts: 429
- Joined: Mon Nov 06, 2006 10:05 am
- My Bike: ZXR 400
- Location: rotherham
Re: stiff throttle? help :-)
Cheers for advice, that mayb a good idea as I have come across this problem when i first got the bike but someone else sorted it at the time..oh and got a question for ya too...on what was said previous about flatside carbs...how can you tell what sort is on bike??? ha ha blonde question or what pmsl
people say that before you die, your whole life flashes before your eyes... make sure its worth watching !! 
zzr 600
zxr400
http://golfnutlady.spaces.live.com/photos/
zzr 600
zxr400
http://golfnutlady.spaces.live.com/photos/
