gearbox selector spring?????

[jerryz]

the small selector spring inside the left hand cover is it the same spring for all models  or do i have to order differrent spring for M750 and S4 as i want to hold spares in stock?

[BK_856er]

I'm pretty sure it's the same for just about everything.

FYI, there is an updated set of parts to improve shifting (the five on the left below, kit pn shown).

For the amount of work it takes to get to the little spring, I would probably also replace the harpoon piece at the same time.

BK

[jerryz]

which bit is the Harpoon and why should it be replaced?

[Speeddog]

'Harpoon' is on the far right in his pic.
#24 in the pic below.

Mostly I've seen #20 broken, once or twice #27.

More info here:
http://www.ducatimonsterforum.org/index.php?topic=46039.0

AFAIK, the springs are the same between 750 and S4, at the very least.