Pegaso 650 Tuning

[Hotti007]

Dear Pegaso community,


I own a Pegaso MJ 1996. Because of the EU environment codes this bike has only 29kw (~39 hp). Does anybody know were the other "horses" are ????
In the carburetor, in the exhaust or in the ignition box ?????
In case of any idea, please contact me.
I´m also locking for a repair manual !!
Who can help me ???

Kind regards.

Horst

[Jonas]

From what I have read the -96 modell have valvetiming with less lift and duration compared to 92-95 models. This due to noise and emission regulations.
These cams are also used on 97- models, the peg3.
There are also some restrictors in the airbox I think and the resistor for the spark advance might be changed similar to peg3.
From tests in magazines they measured 44bhp which are about the same as for later models. 39bhp for the -96 seems to be conservative and 49bhp for the peg3 seems to be optimistic. Doubt that you will notice much differance between the models.

[mtiberio]

tell me more about this early cam, as I have given up hope of ever finding an aftermarket cam ground into an elliptical/conical shape!!! do you know the differences in the peg^1 cam and the peg^3 intake cam?

thanks...
Mike

[Jonas]

This is the info I have got. Measured @ 1mm lift.
intake cam 92-95 (237090)
duration 235deg
ML 110deg ATDC
lift 8.2mm

intake cam 96- (237095)
duration 225deg
ML 107.5deg ATDC
lift 7.3mm

Exhaust cams are more or less the same.
I was tempted to try this early intake cam but it was a bit too expensive for me( about the same as the PAMI carbs).
My shop told me that 237090 are being replaced by 237095 in the part lists so maybe it is not even possible to buy the early cam.
This is strange since they still have to different ex-cams listed that are nearly identical. Maybe he missunderstod and the old ex-cam are replaced by the new one.
/Jonas