

slowride06er
Lifetime Member
- Joined
- Feb 15, 2014
- Messages
- 581
- Reaction score
- 128
- Points
- 908
- Location
- Ford River MI
- Country
- USA
- Snowmobile
- Apex
I did some research on clutching. I found that white spring in secondary at 60 degree wrap was the non aftermarket go to setup. My sled revs at 10950 to 11 on long wide open pulls clean clutch good belt I feel that from what I read it seems to be high. Think my target should be lower say 10,800. Is this the target for aftermarket helix? Has anyone changed the rivets in there stock weights? I feel that if I added a gram in the tip it would put me close to the sweet spot. I'm by no means a clutch tuner looking for advice on getting the best out of my stock setup or different spring combinations that you have used and that have worked.
06 er
136 pre studded xt
23 top gear
Have 24 I could put back in?
06 er
136 pre studded xt
23 top gear
Have 24 I could put back in?

87gtNOS
VIP Member
- Joined
- Nov 30, 2005
- Messages
- 1,892
- Reaction score
- 74
- Points
- 1,108
- Location
- Toronto
- Country
- Canada
- Snowmobile
- 12 Apex XTX MCX powered
Are you running the white spring or pink?
IF white @ 3-3 now, put the pink back in at 3-3, if rpm too low, do pink at 6-1.
IF white @ 3-3 now, put the pink back in at 3-3, if rpm too low, do pink at 6-1.


slowride06er
Lifetime Member
- Joined
- Feb 15, 2014
- Messages
- 581
- Reaction score
- 128
- Points
- 908
- Location
- Ford River MI
- Country
- USA
- Snowmobile
- Apex
Im sorry what ever was stock. I don't have white one in but was thinking about putting that in

87gtNOS
VIP Member
- Joined
- Nov 30, 2005
- Messages
- 1,892
- Reaction score
- 74
- Points
- 1,108
- Location
- Toronto
- Country
- Canada
- Snowmobile
- 12 Apex XTX MCX powered
You might gain rpm with the white spring. What is your pink wrapped at? 6-1 or 3-3? If 6-1, try 3-3!
Also, if 6-1 pink, you could try 3-3 white.
Won't know without trying.
Also, if 6-1 pink, you could try 3-3 white.
Won't know without trying.


slowride06er
Lifetime Member
- Joined
- Feb 15, 2014
- Messages
- 581
- Reaction score
- 128
- Points
- 908
- Location
- Ford River MI
- Country
- USA
- Snowmobile
- Apex
What is my target final rpms for top speed?

87gtNOS
VIP Member
- Joined
- Nov 30, 2005
- Messages
- 1,892
- Reaction score
- 74
- Points
- 1,108
- Location
- Toronto
- Country
- Canada
- Snowmobile
- 12 Apex XTX MCX powered
I guess 10800 is the target most ppl aim for...
Grimm
TY 4 Stroke God
- Joined
- Apr 15, 2005
- Messages
- 4,989
- Reaction score
- 234
- Points
- 1,573
- Location
- Ottawa, Ontario
- Country
- Canada
- Snowmobile
- 2018 MXZ 850
First things first...clean your clutches, then consider a new drive belt. A worn drive belt will slip more, as well as dirty clutch sheaves and cause higher rpms. Maybe even consider using an Ultimax belt, as it's softer and provides better clutch grab. I found switching to the Ultimax belt also brought my rpms down too.
Similar threads
- Replies
- 3
- Views
- 6K