Triumphrat

Midlifecrisis

Hello people,
after scouring the net for days i thought id best sign up to a decent triumph forum to pick peoples brains before i put my head through the laptop.

My dillema is i took a restricted test 18 months ago ( couldnt get the 3 days off at the time to do DAS) so been riding restricted bikes. Now i just bought a 1999 T595 Daytona (great bike!!!) with 6 months of restriction left.

You can see where im going with this already. I was just going to forget it and plod gently for a few months but i keep thinking the `what if` some burk pulls out on me and bye bye insurance. Plus its a nippy bike to get used to so it may be wise.

Now ive been reading allsorts about the law on restrictors and cant see why i should pay for an FI International kit (looking at £250 fitted) when theres such a grey area over if you need the certificate. Ive just phoned some dealers and they push this kit on you but when i ask if they would fit a second hand kit they just say it would be no good cos you have no certificate to give police etc.Ask them the law on the certificate and you get a vague grunt.

Now ive looked on ebay and you can buy a certificate for about 20 quid so whats going on here? My first port of call is to find a restrictor kit. I asked triumph (who no longer make restrictors for this model but can get one for 200 quid?) to buy a drawing of the kit so i can make one but it got me nowhere. Im an engineer so can make these things but know nothing about bike engines so maybe theres another way to get it below 33bhp?

Any advice on this subject is welcomed. Id feel more comfortable with the kit in so anyone with one for sale please let me know! Im trying to resist paying out on an FI kit but reluctantly may have to.

Ill go back to chainsmoking while i deliberate on the problem.

Roden

Geez mate, a Daytona with less than 33hp? Thats sad. Girls on scooters will be going past you...

Cheers,

Roden

drakewn

Get 3 washers that are large enough in diameter(about 35mm) and that have an inside diameter of about 6mm. Loosen off the exhaust manifold and slip them between the block and manifold. This will restrict the flow of exhaust. You may have to experiment with different sizes of washers to dial in your newfound power, or lack thereof.

Don't laugh, this is what Yamaha does to their 80cc dirt bikes, to accomodate young new riders. Then when the kids are ready for a little more power, you pull out the washers.

disclaimer: I take no responsibility whatsoever for damages that may occur to your bike, and/or ego.

Midlifecrisis

I just had a zxr750 which was restricted but whipped up to 80 in what felt like no time and got to over 100 with little pain. I thought whats the point in restriction when i can do this? Id assume the daytona would still do 115 top end restricted and, being one of these silly gits who wants to keep his license, wouldnt mind not being able to get to 150 mph.

I see the angle with the washers mate but if anyone has some more specific dimensions it would be great. I am to motorbike engines what piles are to leicester picket so i dont want to keep stripping bike and trying different shapes/sizes if poss. Isnt there one that just attaches to throttle to restrict it,or did i imagine this simple way out?

Ill start another thread soon where the other 50% of me is thinking why bother .

bradtx

Midlifecrisis, I'm a big fan of innovation over money spending...go get a lead fishing sinker that'll go over the throttle cable, crimp it tight to limit RPM to about 5K. If you get stopped for any reason you'll be able to demonstrate your 'restrictor'.

Brad

dajamjar

I sat my bike test on the restriction and while that was a few years ago things dont seem to have got any clearer.

No one ever asked me to prove that my bike was restricted, neither DVLA nor Insurer, the insurance company doesnt care whether its restricted or not because if they charge you for the bike they make more money.

All of the research i done at the time suggested there was no need to have a certificate documenting that your bike is restricted, this is something that has been create by Fi International who have a pseudo monopoly on the kits.

The key is to make sure that the bike meets the BHP/KW restriction and power to weight ratio because the only way the police can check is to have the bike inspected or stick it on a Dyno. The only times i have heard of it being tested they popped it on a Dyno.

So, you can either:
1 - get it on a dyno and play about with the DIY solutions above
2 - not use a dyno and play with the DIY solutions, i'd say you'd want to be err ont he side of caution if you do this
3 - buy a restricor kit off ebay
4 - break the law and hope you dont get caught

For the last one remember that if you get too many points on your license in the first few years they revoke it and make you sit the test again.

Hope this helps.

Jamie.

Midlifecrisis

hehe ye *sigh* . If i get the design of this kit ill post it here to help anyone in the same position. FI buy from alpha technik in germany. Ive ran their website through google translator but doesnt translate enough to price one up. Anyone with any german speaking skills? Ill assume they sell them a lot cheaper than the £173 from FI (trade price and pre installation) . Anyway ill phone some brokers , maybe they have found a couple in their time. Thanks lads and if anyone digs one out ill buy!!

99Torque

sounds like trouble, but it may be possible to use Tuneboy to restrict the fuel that the ECU will give the engine...

DEcosse

You wouldn't want to restrict the fuel - that would cause big problems if running lean!

What you could do however is just adjust the rev limit fuel shut-off - lower the redline until you reach the hp limit.
Even without a dyno, you could view other dyno charts and make a pretty good assessment at what rpm the cut off would need to be.
Would be below 5K rpm though I suspect

To be honest however I'm not sure if really practical to run this bike at 33 hp

If you did go that route, your Tuneboy would not be a throw-away when restriction period is up - then you can use it to optimize the tune on your motor, especially if you add exhaust etc. Also is a very useful diagnostic tool.

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T'Rat.net BOTM November 2009

Fixed_Ops

Midlife - I speak reasonable German (International Business degree with college German and lived there for a couple years) so if you want to fwd the file/weblink to me I can try to give you a better idea on what it says....just be sure to clearly announciate what you are looking to know from the company so that I can focus on that info for you....it's worth a try anyway