My bike (2002 F4i)had an FI Internationalrestriction kit fitted when I bought it (inlet valve & throttle stop) - 6 months later, I'm getting sick of not being able to overtake people. Anyway,I have no idea where to start with derestricting the bike (I don't even know where the inlet valve is...), but I'm assuming that once you know what's where, it's easy enough to do yourself.

I've been searching for a while now and I still can't find a step-by-step guide or anything like that (at least not for this particular bike). So could someone tell me how to remove the throttle stop and inlet valve?

 

You have an international restriction kit? Where are you at? Europe? Maybe its on there for a reason? I have never even heard of anything like that. A governor on a car but not on a bike.

 

I google'd F4i international restriction kit and this was the first one that popped up. Its kind of hard to restricted a bike that you have no idea what has been restricted.

If its the Tbs just pick up a US set of F4i tbs. easily swappable unless there is an easier way to do it which i couldn't tell you since we have no real details

 

"FI International" is the name of the company that makes the restriction kits. As in, www.fiinternational.com.

I'm in the UK - for the first two years after you pass your test here, you're only supposed to ride a bike with 33hp or less (unless you're over 21 and take a slightly different test). You can imagine that it gets annoying and even dangerous when you try to overtake somebody and just don't have enough power, and after six months of coercion and one ride I've managed to convince my dad of this.

It's not really a governor - according to the papers I got with the bike, the ECU isn't affected at all - the bike is restricted by a throttle stop so I can only turn the throttle about a third of the way, and an inlet valve (I'm not entirely sure what this is). While I'm pretty sure I know what a throttle stop is, I don't know how to remove it and didn't want to set about dismantling my bike before I knew what I was doing. I also wanted to clarify what an inlet valve is, where it is and how I can get rid of it.

 

33hp with an f4i? really? [:'(]
curious- what mpg do you get?

I'd say make a friend at the local stealership and ask him... since its a regulatory thing information is probably controlled!
if you do get it out, take care dude... effectively you're now used to treating it like it's a 200cc but its actual pow/weight is way better than a lambo!

 

I always thought that in some ways it is kind of dangerous to not be able to throttle out of a situation, but some could argue that. I think I have heard of this restriction before.

 

that sounds so annoying! i would prob start w/ the throddle bodies under your air box. the best way to learn your bike is to take it apart a little at a time until you know what goes where. there might be something put on the throddle bodies that restricts it a little bit. i am no mechanic but i am just putting in my 2 cents. if its not it then a lease you would at least learn how to change your air filter while you are under there.

 

That is flat out dangerous if your not an idiot rider. I have been in two situations where I would have got creamed without the power. One situation would have undoubtedly got me killed, no question about it. 33 HP? Our bikes come stock with just shy of 100 horse power at the rear wheel. I'm pretty sure I can produce 33 HP doing a wheelie on a mountain bike......

Be really careful when/if you get that restriction removed, you have no idea what kind of power your bike has if you have been riding on just 33 HP.

 

I've had some experience on a normal 600, my dad's let me borrow his CBR600 a few times so I know what to expect (even if his is an F2).

But yeah, it can be dangerous, especially when overtaking like I said. But as long as you know you've got ****-all power you can start to accelerate before you overtake, change down a couple of gears etc.

It's annoying, but it's not lethal. Then again there's no reason for it.

Oh, and I was wrong about something earlier: it says inlet blade, not inlet valve on the restriction papers. (I'm not sure if anyone's suddenly going to realise what I'm talking about now, but at least I tried.)

 

It sounds like their typical application are washer-like inserts that go between the throttle bodies and the engine intake. You'll have to remove the airbox, throttle bodies, then inspect the intake inlets. You should see some washers installed in there. Or perhaps a plate that goes between the throttle body and the intake.

Then you have a throttle cable restrictor... probably some sort of cable clamp on the throttle cables, where they meet the throttle bodies.

(googling...) yup!

Here's the company that FI International sources from:

http://www.alphatechnik.de/index.php?k=25&hi=3

on that page, you see a picture of the restrictor kit.

Looks like it's that bracket thing which will be installed next to the thottle linkage arm somehow. or it might replace the stock throttle linkage. You might have to source an OEM throttle cablelinkage plate, not sure.

OK better yet: here's the actual kit for the F4i:

http://www.alphatechniksql.alphaplan...TOKEN=53906085

It's a good thing I can read German.