Pries
Veteran
- Joined
- Dec 6, 2015
- Messages
- 28
- Reaction score
- 0
- Points
- 81
- Location
- Calgary
- Country
- Canada
- Snowmobile
- 2007 RS Venture
2008 Nytro MTX
I have a 2008 Nytro MTX where when I let off the throttle, the nose in snow seems to drop immediately and has contributed to a few stucks ;-)
I would like to be able to coast somewhat if that makes sense.
The spring and twist on the secondary are stock - pink with 6,1
I am also not entirely clear on what people mean when they say their machine backshifts great...does that mean that it meets with their expectation or that it 'drops a gear' quickly, or 'drops a gear' slowly?
The primary is GWG with stock weights with a rivet in the outer holes, stock 16.5mm roller.
I see 9,200 RPM on the flat...
I would like to drop the RPM to about 8800 and drop the engagement RPM to about 3000 or so to make low speed maneuvering easier and to also not create a stuck from a standing start in deep snow because the track spins right away when it engages.
I have done some reading on the forums here and am thinking:
Primary:
- YPY for primary spring
- 14.5mm rollers
- Keep the rivet
Not sure what to do with the secondary
I have a W spring for the secondary though.
I would like to be able to coast somewhat if that makes sense.
The spring and twist on the secondary are stock - pink with 6,1
I am also not entirely clear on what people mean when they say their machine backshifts great...does that mean that it meets with their expectation or that it 'drops a gear' quickly, or 'drops a gear' slowly?
The primary is GWG with stock weights with a rivet in the outer holes, stock 16.5mm roller.
I see 9,200 RPM on the flat...
I would like to drop the RPM to about 8800 and drop the engagement RPM to about 3000 or so to make low speed maneuvering easier and to also not create a stuck from a standing start in deep snow because the track spins right away when it engages.
I have done some reading on the forums here and am thinking:
Primary:
- YPY for primary spring
- 14.5mm rollers
- Keep the rivet
Not sure what to do with the secondary
I have a W spring for the secondary though.
Nikolai
TY 4 Stroke God
What's your elevation?
What track are you running (if it's not the stock 153)?
Stock suspension front & back still?
What track are you running (if it's not the stock 153)?
Stock suspension front & back still?
Pries
Veteran
- Joined
- Dec 6, 2015
- Messages
- 28
- Reaction score
- 0
- Points
- 81
- Location
- Calgary
- Country
- Canada
- Snowmobile
- 2007 RS Venture
2008 Nytro MTX
My elevation is about 5000 feet and the track is a camoplast extreme.
I have 60 lbs in Fox Evo 3 shocks on the front and stock suspension in the rear with limiter straps in the 2nd hole from the top.
Since creating this post, I have fixed things greatly. 14.5 mm rollers and the yellow pink yellow spring in the primary give me an engagement rpm of around 3200 RPM and for the secondary I have used a green cat spring with the wrap of zero and one for my 39° helix. Now when I back off the throttle the machine will coast little bit before it back shifts. It still seems to be very responsive and pulls hard when I give it throttle again. I'll play around with it some more and maybe try another spring in the primary.
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