otis700
Member
I have an 02 srx and recently geared her down a bit from 23-38 to 23-40. I had 8dn-20's with 4.5gms in both holes (52.2 grams total on scale), white primary spring, red secondary, 48-40 advant-edge helix.
I was overrevign last year a bit on top end (8600-8700) and with gearing change I figured lets add some tip weight. I found a nut-bolt combo from the local hardware store which fit perfect after a little bolt grinding but per my scale changed the arm weight to 55.7 grams = 8 gram rivets. Wow, lot more than I wanted but lets try it.
Took her out yesterday and motor loaded up when I pinned it. Not a big surprise I guess. Changed the aggressive 48-40 helix to a straight Yamaha 45 helix and changed to the green spring to bring down rpms. Took her back out and she pulls real hard (in backyard).
Will be very interested to see what she pulls for rpm's on top. Also interested to see if the heavier weight - shallower helix approach will be faster than the lighter weight-steeper helix approach.
Hitting the trails next week to find out.
Mark
I was overrevign last year a bit on top end (8600-8700) and with gearing change I figured lets add some tip weight. I found a nut-bolt combo from the local hardware store which fit perfect after a little bolt grinding but per my scale changed the arm weight to 55.7 grams = 8 gram rivets. Wow, lot more than I wanted but lets try it.
Took her out yesterday and motor loaded up when I pinned it. Not a big surprise I guess. Changed the aggressive 48-40 helix to a straight Yamaha 45 helix and changed to the green spring to bring down rpms. Took her back out and she pulls real hard (in backyard).
Will be very interested to see what she pulls for rpm's on top. Also interested to see if the heavier weight - shallower helix approach will be faster than the lighter weight-steeper helix approach.
Hitting the trails next week to find out.
Mark
billbies
New member
found similar results
I am running a 23-41 gear setup and clutching is weird bc I run a polaris primary and arctic secondary. But I am running 68gram weights in my primary
Bill
I am running a 23-41 gear setup and clutching is weird bc I run a polaris primary and arctic secondary. But I am running 68gram weights in my primary
Bill