33BHP Restrictor Kits

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

Where could I buy a 33bhp kit for a Kawasaki GPZ500S?

As for the certificate, do you get it with the kit? I would be able to fit them myself but would I have to take them to a dealer to get approved?
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Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

The kits are made by FI International, it has to be ordered and fitted by an approved dealer. The certificate does come with it and the dealer will give it to you once they've fitted it.

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

Another thing, what does the restriction affect? Will it take away from acceleration or just top end?
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Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

Both.

Raffles_Gentleman Thug · Trackday Trickster Joined: 02 Aug 2004 Karma :

It'll also mess up fuel economy, the way the engine runs, so the engine wil run lean or rich.
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mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

Mine might fall out after I get the certificate then. Whistle

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tony532 · World Chat Champion Joined: 29 May 2004 Karma :

my gsxr400 drinks petrol like i drink beer Sad

i know the bike garage near me gets the kits for 110 notes from fi international

i got the kit and fitted for 140 notes

the bike feels sluggish sometimes

has a top speed of 100 if your lucky

does 0-60 in about 6 seconds

it's a 1990 sp model

numark1 · Scared of girls Joined: 10 May 2004 Karma :

snap

Single seat unit yeah??

I have noticed mine drinks petrol aswell. i took the restrictorsout the other day and managed to get the front up off the power at about 8k revvs Mr. Green

Put the restrictors back in though because its just tooo risky. with my luck i would probably crash into a rari and have invalid insurance and a tasty 100k bill on my hands.

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

hi

still has the pillion seat on

what does it feel like riding without the restrictors in?

one year to go Sad

numark1 · Scared of girls Joined: 10 May 2004 Karma :

completley different bike.... so much more power, at about 7.5k the power kicks in and the bike flys Mr. Green

You should try it one day. Very simple to do. I could send pics if you want...

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

What way are they restricted?
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tony532 · World Chat Champion Joined: 29 May 2004 Karma :

cheers mark

ill send you a pm tomorrow

mr chips:-

restriction on mine is four metal washers in the carb inlets

instigator · Super Spammer Joined: 19 Oct 2004 Karma :

Heres what they look like,

Got mine for free today.

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

Aren't they meant to be in your bike? Razz

instigator · Super Spammer Joined: 19 Oct 2004 Karma :

Tomorrow

Tomorrow

Tomorrow

Tomorrow

Tomorrow

Well............thats the plan anyway..... Wink

Still got bike shops to visit and certain insurance companies to interrogate... Laughing

numark1 · Scared of girls Joined: 10 May 2004 Karma :

mine look like that. Are in the carbs.... The holes are much smaller though. Shocked

My mates R6 holes were even smaller. Is a joke. I thought that the bike standard is like 70bhp so surely the hole would be like 1/2 the size of the metal not like 1/10th.

mrchips · World Chat Champion Joined: 05 Mar 2004 Karma :

£140 for that? I have a boxful of washers in my garage. Restrictor kits for sale 50 quid. Any takers?
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Ian (GPX) · Brolly Dolly Joined: 05 Aug 2003 Karma :

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

numark1 · Scared of girls Joined: 10 May 2004 Karma :

What do you mean twice as many holes? His were the same as mine when we took them out apart from his washers were bigger due to the larger carb inlets and the holes in them were smaller.

Kram · World Chat Champion Joined: 20 Oct 2004 Karma :

what if you took the washers out, accidently droped a large drill bit (attached to a drill) through the washer, and reinserted them, would it still count as restricted?
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Bendy · Mrs Sensible Joined: 10 Jun 2002 Karma :

Ste · Not Work Safe Joined: 01 Sep 2002 Karma :

Technically it wouldn't because if you made the holes bigger it would no longer be 33bhp.

If they actually got to the point where they were taking the bike apart to check for them then I expect they'd know what they were looking for. Also, the exact size of the hole is stated on the 33bhp certificate.

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

LustyLew · World Chat Champion Joined: 19 Apr 2004 Karma :

I'm holding off until the new year to de-restrict my bike. Officially I need to wait until September 2005, but hey. I've been very good so far, time to go wild... RAAAA! Cool

Think I'll write a little 'How To' guide... It'll be for a Kawasaki ER-5 (A2 version) if anyone is interested.

Smile

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