Restricting my ZX7R by throttle.

[joezxr]

Im planning to restrict my ZX7R to 33bhp but im not bothering with the carb washers or any of that, im literally going to install a pin into the throttle switch assembly that doesnt let me rev past a certain point till my restrictions lifted.

Iv planned it all out but all i need to do now is roughly know what power output comes out of the rev range...

as far as i know a 33bhp motorcycle can do around 90-100mph so i was planning too do a 100mph run in 6th gear (on a private road) and see what the rev range is sat at then restrict it too that point? would this work or is my logic completley wrong?

The zx7r weighs about 230kg and is around 110bhp if this helps

could anyone that good with power outputs and ratios help me out to what RPM i need to restrict my throttle too, too be 33bhp or less!

thanks!

[reed]

I wouldn't bother.
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Generic XOR 50, Gilera SMT 50, GSXR 400 GK73A, Ducati Monster 600, Honda Hornet 600.
Sold. Stolen. Written off. Sold. Current.

[Irezumi aka Reuben]

Make something thats adjustable, set it around the right mark then take it to a dyno house and get a print out. Should police/insurers require proof its there if necessary.

Immediately after print out remove the stop!
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Pictorgraphicalfantastical

[Aff]

https://image.sportrider.com/f/18801756+w750+st0/146_02+sportbike_peformance_dyno_charts+kawasaki_dyno.jpg

Looks to be about 3.5K.

That would be shit to ride.

:edit:

I suppose that's 3.5k at full throttle though.
For comparison I think the ER6 cut it down to like 50% on a 70hp bike. so it would probably be about a 1/3 throttle.
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Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[smegballs]

[CaNsA]

If you wanna be 100% legit click on the "47HP RESTRICTION CERTIFICATE" link in any of Paddy's sig.
It can be found in any of his posts.
https://www.bikechatforums.com/profile.php?mode=viewprofile&u=41184

[joezxr]

[joezxr]

[Scythe]

[Whosthedaddy]

A dyno chart on my old ZX7R

https://p1.bikepics.com/2008%5C10%5C21%5Cbikepics-1456548-full.jpg
____________________
Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[P.]

[CaNsA]

[joezxr]

i know even these "proper" certificates are bollocks hence why im not after one lol

literally want to put a pin in my throttle that runs 33bhp of power, so they can take my bike dyno it and realise theyve wasted there time...

iv never been pulled in the 2 years iv been riding but just want to be safe!

[Aff]

At least make it so that it's removable, then you can just put it back in if they every try and dyno it.
____________________
Current Bikes:Honda 929RR Fireblade, Honda CD200 Benly (Project), Stomp Z2 140
Electric Bike Project

[P.]

[CaNsA]

LOL

You honestly think the bloke doing the dyno run wont be able to tell if the throttle has been doctored?

If you restrict with the throttle you are still waaaay over the bhp limit.
Also, unless you restrict the bike's horses correctly you are uninsured, bad move....

Fuck it, I hope you get arse raped for no insurance and not riding within accordance of your licence.

[Aff]

[wots]

If the throttle assembly is the same as the ZX10R, it also has the screw hole, which accepts the ER6 screw. I know because I was going to install it in my mates ZX10R to annoy him. I suspect it's a shared part.
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Currently: Yamaha DT 125 LC2,Repsol Fireblade, and Bumblebee MSX 125

[CaNsA]

[0l0dom0l0]

Your idea isn't as stupid as people might think. I did exactly the same thing when I was on a 33bhp license.

The method I used was a cable crimp on one of the thorttle cables at the handlebar end which stopped the throttle from opening fully. That way, if an officer stopped me at the side of the road I could say, 'feel the throttle officer' as it opened about a third.

100mph is about right for a 33bhp bike so if you're easily doing over 100 then it'll be more than 33bhp.
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CBT Passed: 30/08/2009, Theory Passed: 31/08/2010, Mod 1 Passed: 6/9/2010, Mod 2 Passed: 13/09/2010. Restriction ended 13/09/2012.

Bikes: 2007 Derbi GPR 50, 1998 Yamaha Fazer 600 (written off), 2002 Yamaha Fazer 600, 1994 CBR 600F, 2003 Triumph Daytona 600, Kawasaki ZX6R J1.....Current: 2006 Yamaha FZ6, 1998 Suzuki TL1000R and a Honda VFR 400 NC30.

[Aff]

[wots]

[reed]

[joezxr]

thanks for all the serious answers...

just a question where can i get hold of one of these ER6 thorttle restrictors and where about is the hole located on my throttle??

as for the people saying the dyno guy would know, well yeah of course he would know lol he will see the throttle doesnt twist as much as it should and think oh right thats how hes restricted it, as far as i know it would be illegal for him to remove anything iv installed as a restrictor i could jam a toothpick in there if i really wanted too

the whole point of this restrictor is to somehow get 33bhp and if thats not possible then atleast show the plods the bike doesnt rev out and is restricted..

if i really wanted too i could install my own thumb screw with a threaded insert that can easily be screwed in and stops the throttle going over 3.5k when iv been pulled

[wots]