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R1 AIS
markyb - 28/10/08 at 11:16 AM

having read numerous posts ref whether to keep or remove the AIS I have decided to keep mine but am not sure what I should do with the pipe that should run from the AIS to the airbox (I have fitted an aftermarket filter).

Is it ok to cut the rubber pipe near the AIS and block it with silicon/bolt or does air need to get into the AIS to help the exhaust system ?

progers - 28/10/08 at 11:25 AM

If you are going to block the pipe you might as well junk the whole AIS! (which what I would recommend you do).

There is no valid reason on a BEC why you should keep it - the only positive I can see to your approach is that you only have to block one hole instead of 4.

- Paul

Pdlewis - 28/10/08 at 11:34 AM

What is the easiest way to block the 4 holes when you take the system off?

progers - 28/10/08 at 02:13 PM

There are a couple of options

1) Put short M10 bolt in rubber tube and clamp with spring clip.
2) Cut the metal tubes into the head (between the right angle piece and AIS) nip tube together and seal using epoxy or braze it up.

Cheers

Paul

Johneturbo - 28/10/08 at 04:07 PM

Marky what filter do you have? is it the pipercross one. if so you could just drill a hole in the baseplate then bond a bit of pipe in place, then it will work as it was on the bike.

A1 - 28/10/08 at 04:15 PM

im having the same problem, was thinking of getting another breather filter for it, as i have done with the crankcase breather pipe...
thought id keep it for the extra pops and bangs

TimC - 28/10/08 at 07:17 PM

quote:
Originally posted by progers
There are a couple of options

1) Put short M10 bolt in rubber tube and clamp with spring clip.
2) Cut the metal tubes into the head (between the right angle piece and AIS) nip tube together and seal using epoxy or braze it up.

Cheers

Paul


Or:
3) Cut the pipe, tap and blank with a bolt and suitable threadlock type stuff.

I must confess that my engine had this done when I bought it but it is very tidy.

markyb - 29/10/08 at 01:12 AM

some good options there - as I have the pipercross filter I could go that route

something to think about

thanks everyone

Coose - 31/10/08 at 12:58 PM

Eh? Just leave it in place but don't connect the rubber hoses to either the airbox or the inlet downstream of the carb. The AIS only operates under a vacuum (i.e. when the throttle is shut on the overrun) and so won't operate if these aren't connected. My R1 Striker did 7500 rather brisk miles like this without a problem!