buying a sv650 sport - is it restricted ?

[mike_avfc]

Hi,

I've had a full license for 18 years and am just about to pick up a 2004 (K4) SV650 Sport on a 54 plate.

I'm picking the bike up thursday and am keen to get on the road, my concern though is i have no idea if its restricted. There seems to be a restricted ECU suzuki fit on the bike.

What i need help with is, how do i tell if it's restricted ??? surely the ECU (next to battery i believe) must have some markings on or a particular serial number identification.

I'm popping into the dealer tomorrow (suzuki main dealer), so hopefully they will know or be able to check, but i was just hoping someone may be able to tell me so i am sur ethis is de-restricted.

Many thanks.

Mike

[Paul the 6th]

just had a quick look on the parts list for k4 sport @ http://www.alpha-sports.com/suzuki_parts.htm?gclid=CPTzp-vdtI8CFQpgMAodNj8QKg but could only find a single serial number for a "Control Unit, FI" under the electrical section - I'mm assuming this is the main ecu unit but couldn't be sure to be honest. Checking with the dealer is most likely to be the best bet :) welcome to the madhouse by the way

[VolatileParsley]

Hi Mike,

I believe that there are a couple of ways to tell if your SV is restricted or not, it depends on how it has been restricted.

The ECU, which as you say is next to the battery, is the simple way of restricting the bike as it is just simply a case of swapping it over.

I believe the non-restricted version of the ECU has a serial number of MGT 060 and the 33bhp restricted version is MGT 061. Have a look on the unit itself, it should be clearly marked.

However, it may have been restricted with a kit from FI International. This is a mechanical restriction involving inlet blades and a throttle stop. If your throttle only turns through say quarter of a turn, chances are it has been restricted using a kit from FI.

I'm no expert on this as I'm new to the world of SVs myself, this is just info I've picked up on this forum and through having my bike restricted using an FI kit.

I'm sure others will be able to confirm or deny what I have said.

Hope this helps,
John.

[neio79]

Hi Mike,

I believe the non-restricted version of the ECU has a serial number of MGT 060 and the 33bhp restricted version is MGT 061. Have a look on the unit itself, it should be clearly marked.

.

Correct, the last 3 digits are as above.

[yorkie_chris]

If your throttle only turns through say quarter of a turn, chances are it has been restricted using a kit from FI.


1/4 turn throttle is standard, restricted throttle travel is much less (pointy ones only, with FI int. restrictor kit.)

Easiest way is to just take the thing out and see what it'll do, if it's restricted it's fairly obvious.

[Defender]

Take it for a ride. If it does 100mph with ease its unrestricted ;)

[mike_avfc]

Hi All,

Many thanks for all your replies, I'll ask the dealer today to check and confirm.

Great news on the serial number, thats something i can check easily. The throttle does turn quite a bit as i checked it in the showroom so hopefully i should be all ok.

Looking forward to being a born again biker on Thursday :D

[kwak zzr]

you wont regret your choice of bike the sv is a great little bike.

[Dangerous Dave]

Ride it and use the entire rev's if it feels strangled then it is restricted, however a Suzuki main dealer should not sell you the bike restricted if you have a full licence unless you specified having a 33bhp restriction.

[mike_avfc]

just been in and they have said if it was restricted it would have said on the bike in the showroom, theyre gonna check when they do the service before i pick it up, just hope the weathers ok for it this weekend..:p

[Paul the 6th]

just hope the weathers ok for it this weekend..:p


you'll probably learn to check here: http://www.metoffice.gov.uk/weather/uk/sw/swindon_forecast_weather.html
quite often once you've got the keys :)

also, www.metcheck.com (http://www.metcheck.com) is quite accurate for the weather too :)

[trinyquist]

However, it may have been restricted with a kit from FI International. This is a mechanical restriction involving inlet blades and a throttle stop. If your throttle only turns through say quarter of a turn, chances are it has been restricted using a kit from FI.

When I bought my bike (K4) the guy said it was restricted (I have the paperwork from FI International) but after I took it out for a spin I really didnt think it was restricted and I'm on a A2 license, so I needed it restricted. I bought a 33BHP ECU off ebay because thats the only method I thought there was to restrict a pointy. I didnt really notice that much of a change in the bike after I put it in, so I was a bit miffed. But now having read the above, I think my bike has been mechanically restricted. I can only turn my throttle a quarter turn. Even with the original ECU in, it doesn't get to the speeds many people say the SV can do. I can get it to 100 odd, but then it doesnt really want to go much faster.

Is my bike mechanically restricted? How can I remove the restriction when my restriction is over in a few weeks?

[yorkie_chris]

A quarter turn is the STANDARD throttle travel!

If it were any longer how would you use it?

If it only does 100 then it sounds restricted. Probably takes a while to get there too.

[trinyquist]

I'm not sure it is, as my girlfriend got a K5 SV that wasn't restricted and her throttle turns a hell of lot more than mine!

And yes, it does take a while to get to 100. Gets to 60/70 all fine and dandy, but then just doesnt want to go after 90 odd.

How would I know for sure that my bike is mechanically restricted? These inlet blades, what do they look like?

[yorkie_chris]

Like a pair of washers AFAIK

Just pull the airbox lid and see if the butterflys are fully open at full throttle. (engine off :-P)

[VolatileParsley]

In my original response I said that the throttle will only turn about a quarter of a turn if it's restricted with an FI kit. The point I was trying to make is that it doesn't move much at all, certainly nowhere near as much as the throttle on my previous bike (a 125 Varadero) and nowhere near as much as the Ninja 250R of my other half.

The restrictor kit is, as yorkie_chris says, two washers and also a t-bar shaped piece. The washers sit under the throttle bodies.

Take a look at this thread here: http://forums.sv650.org/showthread.php?t=78297

Scroll down and you will see a picture of the parts.

Apologies for the confusion over the 'quarter turn'.

John.

[mike_avfc]

right - had the bike a few weeks - just found a quiet dual carriageway - - gets to 115 no probs - 125 fairly easy then i chickened out - pulls really well so am sure not restricted in any way.

Here's to the SV :D

[phil24_7]

right - had the bike a few weeks - just been on a private runway - gets to 115 no probs - 125 fairly easy then i chickened out - pulls really well so am sure not restricted in any way.

Here's to the SV :D

Edited for you ;-)