Needing 33bhp restrictor for Curvy!

[suzuki_ben]

Please help me, needing 33bhp restricter. I'm 18 and have just bought 1999 SV 650 curvey (and now spent all my money D'OH) but need a restricter to get me on the road. Also wouldn't mind some advice as to what you can get (ECU,throttle or washers in carbs) and if you can get a couple of different types, whats the best? Thanx SV'ers :D

[arcdef]

your looking at £150 for the kit but then you need someone to fit it which is about £100 so they can get your certificate.....only way for a curvey is washers in carbs i think might be able to get some on ebay that someone has ripped out but that wont give you the certificate and youll have to fit them

[metalmonkey]

your looking at £150 for the kit but then you need someone to fit it which is about £100 so they can get your certificate.....only way for a curvey is washers in carbs i think might be able to get some on ebay that someone has ripped out but that wont give you the certificate and youll have to fit them

As has been posted by others with experince than me, the advice has been that you don't you certificate for the restrication. I'm sure if you ask around someone can explain how to restrict your bike, from what I understand its quite easy. Can't help more than that as I have an injected bike. Welcome and enjoy your bike.

[JamesMio]

See my findings & results on this thread from a couple of weeks back...

http://forums.sv650.org/showthread.php?t=123082

[suzuki_ben]

Thanks alot you guys. The law just isn' clear enough is it. I passed my test like all you guys and i just want to go for a ride on my new toy. Thanks Ben

[suzuki_ben]

By the way, does anyone know how Quick curveys are with 33bhp thanks Ben

[aarond]

100ish if down hill with a tail wind then maybe just maybe 110 indicated, fitting restrictors isnt hard and i think the general consensus was a dyno print out proving bike produced 33bhp would be enough...

[JamesMio]

a dyno print out proving bike produced 33bhp would be enough...

Only if/when required - and going by what the copper said to me last week, you would be seriously unlucky to even be questioned about it. As long as your bike IS restricted to 33bhp (or less), then I wouldn't worry too much. Certainly that's what we've done for the missus' bike. It's restricted, I got the garage to mention it on the receipt, if we're ever really questioned about it, THEN I'll look into getting it dyno tested.

[yorkie_chris]

Give me a shout if you need any help fitting. I will be heading over to leeds again regularly next week.

[ugp]

I've got a set of restrictor washers I removed from my SV.

PM me your address and I'll post them out to you.

As for a certificate, its upto them to prove its restricted or not if they question you.

I was requested by a fellow *ahem "officer" to get it dyno'd and produce the print out, dyno sheet came back at 32.9bhp lol.

[phuk72]

If you are that way inclined, a search on ebay will reveal firms who will gladly produce you a certificate ;)

[metalmonkey]

Thanks alot you guys. The law just isn' clear enough is it. I passed my test like all you guys and i just want to go for a ride on my new toy. Thanks Ben

I asked some colleuges about that exaxt thing, well no one not exactly that you need one, but if you have one a copy then keep it under your seat. However if you pulled for going warp 9 I would suggest you will have bigger things to worry about.

[joshmac]

If you are that way inclined, a search on ebay will reveal firms who will gladly produce you a certificate ;)
They won't be worth the paper they're printed on, let alone the £30 odd that they charge (well that's what it was in June last year).

Fitting's easy enough (even easier if you've got Yorkie_Chris topped up on tea and biscuits! :lol:)

Hinge the tank up (remove bolts at the front)
Remove the airbox
Loosen the jubilee clips holding the carbs on and pull the carbs out of their boots.
Pop the washers into the gap between where the carbs sit and the manifold (I think that's what it's called)
Put everything back together and voila! :cheers:

[Sally]

Dont go through FI international.
****ing over priced ****e.
Made that mistake twice now.

[joshmac]

Dont go through FI international.
****ing over priced ****e.
Made that mistake twice now.
If you've got a pointy then the 33bhp ECU is the best way to go, but the OP has a curvy


Use an FI international kit, but don't get it from them!
They're easier to fit than Suzuki's carb sliders and do the same job
The £150 odd you pay is for the certificate, which isn't required by law. Well it's a massive grey area at least

[yorkie_chris]

My problem with FI international is that on other bikes they will create MASSIVE running problems, when a 7 year old could think of a way to restrict it without fouling the motor. F##king incompetents as well as robbers.

Did I mention they're a bunch of w4nkers?

[joshmac]

My problem with FI international is that on other bikes they will create MASSIVE running problems, when a 7 year old could think of a way to restrict it without fouling the motor. F##king incompetents as well as robbers.

Did I mention they're a bunch of w4nkers?
Nah mate, that's the first time I've ever heard you say that! :p;)

Even on other carbed bikes?
Why don't they cause the curvy SV to run with mahoosive problems?

[yorkie_chris]

Because the carbed bike is totally different, with the washers in place it's like having the throttle partially closed, so the sliders open by the same amount as if you'd used 33bhp worth of right hand. Giving the same fuel-air mixture as normal. No problems...

HOWEVER, do the same thing to an injected bike and the injection will dump in the same amount of fuel. Making bike run sloppy rich, giving it bad power delivery and fuel economy. Fouling up the plugs etc etc...

[joshmac]

Because the carbed bike is totally different, with the washers in place it's like having the throttle partially closed, so the sliders open by the same amount as if you'd used 33bhp worth of right hand. Giving the same fuel-air mixture as normal. No problems...

HOWEVER, do the same thing to an injected bike and the injection will dump in the same amount of fuel. Making bike run sloppy rich, giving it bad power delivery and fuel economy. Fouling up the plugs etc etc...
Yeah I knew it made injected bikes run like $hite, but I assume other carbed bikes with run A-Okay right?

[yorkie_chris]

With CV carbs the washer method of restriction is fine. (most carbs on stockers)

With slide carbs there may be some serious wierdness.