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Does anybody know if st2 cams fit in 907?if so any mods required,any gains
to be had? Just pulled heads off to fit mbp collets ,ordered
ohlins shock fitted braided lines all round (thanx mr speigler)
but broke cam belt idler pully bolt ,replacing belts and rollers and dial in cams wish me luck have five weeks to get back together for
trip down west coast nz for best little airshow inthe world

They should fit straight in but you will need to completely re-shim all the clearances.

And how to connect the tachometer cable? Or do you have a electronic Instrument?

Bock900r wrote:And how to connect the tachometer cable? Or do you have a electronic Instrument?

I was told, only last week, by a friend who is working on a 900SS project bike that the worm gear on the camshaft is simply an interference fit. So it could presumably be removed from the 907 camshaft and transferred to the ST2 one.

The hard part will be finding the cams

Derek wrote:

Bock900r wrote:And how to connect the tachometer cable? Or do you have a electronic Instrument?

I was told, only last week, by a friend who is working on a 900SS project bike that the worm gear on the camshaft is simply an interference fit. So it could presumably be removed from the 907 camshaft and transferred to the ST2 one.

I know it from the SPS cams, they has to be modyfied by machining to fit the interface.
This was done on my 888 with 996SPS engine

Here a link, only in German
http://www.first-attack.de/Tuning/Drehz ... trieb.html

Hi,
I just got a pair for my 907, I can say that they are a perfect fit. The problem is to get them for an acceptable price if you don't want to buy them new for about 700€ (prive in Germany)
Good luck !

Rainer

Bock900r wrote:

Derek wrote:

Bock900r wrote:And how to connect the tachometer cable? Or do you have a electronic Instrument?

I was told, only last week, by a friend who is working on a 900SS project bike that the worm gear on the camshaft is simply an interference fit. So it could presumably be removed from the 907 camshaft and transferred to the ST2 one.

I know it from the SPS cams, they has to be modyfied by machining to fit the interface.
This was done on my 888 with 996SPS engine

Here a link, only in German
http://www.first-attack.de/Tuning/Drehz ... trieb.html

I asked them for a ST3 camshaft conversion to mechanical tach attachment for 907. They said they won`t do for a std.-price, it would be a prototype w. all costs that are coming with this fact...

Hi
Why fit ST2 cams?

more overlap in the timing = more power on the high end of the rpm band