what is "de-restricted"?

Originally Posted by Daz

Apparently, someone did restrict a Hayabusa to 33bhp imagine

yeah rich 18year old from Cheltemham where i live, bourght a brand new Duucati 748 and asked them to restrict it for him after 2 years he wanted to sell it back to them, they took restrictors out rode it, and the shop refused to buy it , putting the restrictor kits on big power bike (well i know a 748 isnt that powerful)but it realy ****s them up

Originally Posted by Carsick

if you're under 21 you can't get an unrestricted license straight off. Some people don't feel comfortable with the larger bike during their test, some people can't put their feet down.
A variety of reasons.

Or if like me, you keep mucking up the u-turn on the test until you've had enough and decide to cop out by doing the test on a 125cc... 6 weeks to go until no more restriction! Hayabusa here I come!

my sv performs fine for a 33bhp, i have done over 8 thousand miles and am still loving it, tho i think the restriction should only be 1 year (meaning mine would be out in 2 weeks) because i think i could handle the full power sv650 or the z1000 and it would really help me with my job (motorcycle mechanic)

xvs

Originally Posted by XVS2005

my sv performs fine for a 33bhp, i have done over 8 thousand miles and am still loving it, tho i think the restriction should only be 1 year (meaning mine would be out in 2 weeks) because i think i could handle the full power sv650 or the z1000 and it would really help me with my job (motorcycle mechanic)

xvs

I agree with you on that one, 2 years is far too long, without restrictors on, the SV isnt totally different tbh, took mine out for a few days last year when i was doing some work that involved stripping some parts of the bike.

The delivery is basically the same, except on the restrcited one, the SV sort of dies off at 7000-7500 rpm, the unrestricted one has a nice bit of kick in power, but not nearly so much as a IL4.

Mine 2 years are over in 3 weekd though, cant wait

only 1yr & 5months left for me.

i am not counting really.

[TSM]

Originally Posted by Bikerz

yeah rich 18year old from Cheltemham where i live, bourght a brand new Duucati 748 and asked them to restrict it for him after 2 years he wanted to sell it back to them, they took restrictors out rode it, and the shop refused to buy it , putting the restrictor kits on big power bike (well i know a 748 isnt that powerful)but it realy f*cks them up

not true, all the restrictors do is to restrict the air intake with suzuki original kit on carbed bikes on FI change the ecu box which has a diffrent fuel mapping to restrict the power. It will not mess the bike up. They probably refused to take it back because he suffed it up.

other boffs will explain better.

Its not just the air intake mate, else that way the bike would run really rich.

I dont know fully either, but its a much smaller washer which is attached to the carbs (on mine anyway) which restricts the amount of fuel/air mixture which is taken in during the induction stroke, therefore not as much can be burned giving less power (as is my understanding)

Can somebody explain this properly please, cuz iv always wondered...

My first SV650s was "restricted" had it for almost a year before i wrote it off. The SV is a perfect bike to restrict cos of the Vtwin nature it doesnt suffer low down in the revs.

From memory it was just a shim in the carb which stopped the throttle valve from opening all the way. That why the throttle is at its maximum at about 3/4 twist.

I'm now on my second SVs -02 full bore nearly 20K miles and not a glitch.

Originally Posted by Jp

Its not just the air intake mate, else that way the bike would run really rich.

I dont know fully either, but its a much smaller washer which is attached to the carbs (on mine anyway) which restricts the amount of fuel/air mixture which is taken in during the induction stroke, therefore not as much can be burned giving less power (as is my understanding)

Can somebody explain this properly please, cuz iv always wondered...

JP - on the curvies it really is only a washer with a smaller diameter hole that restricts the bike.

If you give a restricted curvy a handfull of throttle, the washer will only allow a smaller amount of air to feed the pots - hence the revs dying off at approx 7k.

Basically, if the engine can't breathe enough fuel + AIR in at the right (stoichiometric) mixture, the power is reduced. If you tried to increase the fuel mixture to get more power, it couldn't work as the fuel would not have enough air to mix with to get an efficient burn.

Elmerfud,

That was probably a better description than mine but i think you may be referring to an aftermartket kit. I believe mine was an official suzuki one and it wasnt a washer. But a piece of plastic that stopped the slide in the carb from opening fully.