701 61x Jetting Recommendations??

[dirkdiggler]

Im changing parts on both my ski's and need some help figuring out what my jetting should be with the following parts installed:

1.) 701 61x with Mikuni SBN 44, Stock F/A, Full Pro-Tec Exhaust, 170 psi compression, stock reeds
pilot = ?
main = ?
Needle/seat = ?
spring = ?

and

2.) 701 61x with Mikuni SBN 44, Stock F/A, Factory B-Pipe exhaust, 170 Psi compression, stock reeds.
pilot = ?
main = ?
Needle/seat = ?
spring = ?


Any help is much appreciated

 

[dirkdiggler]

For anyone else that has a similar setup and needs some accurate jetting advice......this is from Foxriver who has mucho experience......Thanks Fox!

After going thru a lot of notes, I would start both set ups the same.

140 main
120 pilot
N&S can be the stock 1.5 w/65gm spring OR a 2.0 w/95gm spring. Basically, you'll want the pop-off around 25-35psi.
Start with the high speed screw at 2 turns, but it will probably wind up in a bit from there maybe 1 3/4 or 1 1/2.
Start with the low speed screw 1 1/4 turns out, and it will probably end up darn close to that.

These notes came from several skis I've tuned with both of those pipes. Over the years, I've found that the pro-tec, red riva, and b-pipes all respond very similarly to jetting adjustments, and all preform very similarly.

 

[Mike W]

http://www.x-h2o.com/threads/19403&highlight=DATABASE