I need some help makeing a decision. I want to get the HPD big bore kit for my 1999 400 Scrambler. What all do I need to have on my bike to put this kit on and what all do I need to get from HPD. I have a Aaen pipe, Boyesen reeds, K&N filter, cluch kit, and it has been jetted. That is all that has been performance wise.
I know that I need to get the Big Bore Billet head(pump gas), and the Wisco Big Bore Piston 86.5mm. What else do I need? Do I need to get a Big bore replacement Chamber?? Or a Billet head Gridle kit??
And I know that this will really help bottom end. What else will this do for me?

Thanks for the help.

Phillip

 

oh one more thing. Will this hurt the reliability any or will it help it???

thanks

 

Go here:

http://pub8.bravenet.com/forum/show....12682403&cpv=1

Ask your question. I am pretty sure that Jim Dostine has a big bore kit in his 400. He has also removed the reverse gear, which so far has proved to show tremendous gains. (by doing this you are loosing a lot of rotating weight which is good)

Good Luck,

EC