Hi !
can you please tell me if it is possible to restrict
a CBR 400 down to 33bhp ..
the reason for this is i want to buy a cbr learn to ride,
then take my test and put it back to full power!
Advise please, on how this is possible .. (if it is)
Mike

 

you dont need to restrict it, just take it easy and be friendly to the throttle and your good to go.

 

I think the 33HP is a European thing. In the states anyone with an endorsmentcan buy anybike with any amount of power.

Go to the dealer and see if there is an approved kit.

 

Not sure why you need to, but part of learning how to ride is learning how to control the power.

 

+1 thats the way that everybody needs to learn or atleast buy a smaller bike lol and i may be retarded but ive never heard of or seen a cbr400.. is it just in europe?

 

it is a european thing (the bike and the maximum HP law)
I forget exactly how it goes but its something like your first year riding at a certain age you can only ride a xx hp bike, after a certain time, your allowed to ride something with more HP, etc

 

Thissounds like UK law. A bike licence can be obtained in a few different ways, with different conditions.
If you are under 21, you can take a teston a 125cc bike (14.6bhp) and once passed you are restricted to 33bhp, regardless of engine size for 2 years, after which you can ride any bike with any bhp. The restriction is gone.

If over 21, you can do the above, or do the test on a bike of 500cc (46bhp) and once completed ride anything.

Or, you can do a 'Light motorcycle test', that is, do it on a 125 and it is only valid for 125s. I dont know who the hell would do that test! (might as well do the first).

There are plans to complicate the test further, making it possible to fly a jumbo jet with 300 people on sooner than you can ride a cbr...

Anyway, yes you can get kits for the 400's, but they are very rare. I believe the vfr400 kit may be easier to get, but have no idea where to get them at present. Time to phone around.

I made a kit once for a vf400, by measuring the inlets and using a known bhp, working out a percentage to make washers that fitted between the carbs and the head. A lot a buggering about, but it worked.

Are you in the UK? Pm me, I might have some numbers somewhere if I look.

 

Pull a couple spark plugs out.......

 

May sound like a dumb noob question but where are my spark plugs. I have an 01 929. The only place i can see them beeing is under the gas tank.

 

pull timing maybe?

spark plugs on 929 is located below the air box...which is under the tank. you can see it from the front, behind the radiator.