what year is your M900?
96-99 the motor was different.

jeff h
01 M900Sie
95 900SS/SP

 

The only difference in top speed is that one bike has a fairing and the other does not.
Because of the different frame designs, your monster should win the handling battle in the twisties. Both bikes weigh about the same, check the sprockets.

 

<begs to differ>


the 96-99 had the 750 heads and are down like 15hp on other models....
(also agree about the effect of the fairing)

 

Well that makes sense. Mine's a 96. So it has shitty heads(probably small valves to?). I would assume I could switch to a non-96-99 head if I wanted?

 

yes, 'good' heads are stamped V2, small ones W

might also keep an eye out for a whole SS or M900 motor (although those seem to be getting rare)

 

did a bit of looking into this and it seems a good set of heads and the 41mm FCR carbs would really wake this thing up.

 

OBVIOUSLY I was comparing apples to apples on the heads. New heads and FCRs would be great - wait 'til you see the prices.

 

well I would consider 750 heads on my 900 vs the correct heads on the 900SS to be a big thing.

I really hate it when manufacturers do this to.

And yeah I saw prices. It'd be more cost effective to just go buy a S4 series monster.

 

I have a 1999 Monster (Originally 600) and i fitted a 900SS engine (1994-Big valve edition-with hicomp pistons) and what a beast, i kept the same size rear sprocket, for the SS, and this has reduced the acceleration and has increased the top end!

Different sprockets do make a big difference!

Yorkie