yamyrider
Active member
2000 SX700R Bender clutch kit with the 9160 helix, blue primary spring, stock wieght, rollers, not sure what wrap I have as the kit was installed by a Yamy dealer but on the helix the spring is in the 6. U have 2 layers removed from head gasket, Bender can, reed spacers.
when I hit the throttle she will go to about 8400 but climb to about 9000 on acceleration. I know this is too high and I am losing power big time.
I just dont know how to solve it.
HELP.
when I hit the throttle she will go to about 8400 but climb to about 9000 on acceleration. I know this is too high and I am losing power big time.
I just dont know how to solve it.
HELP.
With out knowing the specs on the helix & springs the only proper way to bring down rpm,s is to add weight to the primary. Are you using an old belt? That will raise rpm,s. A short centre to centre will raise rpm,s. I have clutched a lot of those sleds. a 51/43 helix & changing inner rivet from a 3.6 to a 4.5 gram using stock springs works great in that sled & will pull 8500 rpm all day long! Cost to do this is about $100 in parts.
yamyrider
Active member
Turk. I dont know if this helps but that helix if from the SXR600 Bender clutch kit. Cltches are all aligned, belt has a little shine and I will try my new one although I have a feeling it is not that.
Would your suggestion of helis and stock spring be my best option
Would your suggestion of helis and stock spring be my best option
Those specs i gave you will give you perfect rpm,s.
yamyrider
Active member
Hi Turk,
maybe I am beating a dead horse with this bender clutch kit. Kinda hard to take after spending $350 on this kit from bender. I did find out the helix is a 49/45.....which I have not heard of anybody using on that sled. You have already told me twice to go with a new helix and change rivets but like I said am giving one last kick at the can with this $350.00 kit. I looked on the weekend in my city and no one has the helix you recommended but I am still looking. Can I do something with this helix to fix my over-rev problem or again am I beating a dead horse.
maybe I am beating a dead horse with this bender clutch kit. Kinda hard to take after spending $350 on this kit from bender. I did find out the helix is a 49/45.....which I have not heard of anybody using on that sled. You have already told me twice to go with a new helix and change rivets but like I said am giving one last kick at the can with this $350.00 kit. I looked on the weekend in my city and no one has the helix you recommended but I am still looking. Can I do something with this helix to fix my over-rev problem or again am I beating a dead horse.
yamyrider
Active member
Hey Turk,
I am going to really check closely as there is 9160 and 9760.
The 9160 is a 51/45. If it is 51/45 I should be able to make this work (right).
Thanks for your input. I know you are the clutch guru here.
I am going to really check closely as there is 9160 and 9760.
The 9160 is a 51/45. If it is 51/45 I should be able to make this work (right).
Thanks for your input. I know you are the clutch guru here.
yamyrider
Active member
100% confirmed that it is the 49/45 helix. The secondary spring is only black.
If I cant make this work I will place a wanted add on tis site.
If I cant make this work I will place a wanted add on tis site.
Testarosa
New member
- Joined
- Sep 18, 2004
- Messages
- 8
Same Bender kit over rev issue
This sounds too familiar. I have a 2001 sxr 700 with the Bender clutch kit and I have an incredible over Rev. I have seen it upwards of 10,000 RPM! I need to find a simple solution. I know Turks solution would be the best bet but I just can't throw away the money I spent in the Bender kit. Why can't we make this work??
Testarosa
This sounds too familiar. I have a 2001 sxr 700 with the Bender clutch kit and I have an incredible over Rev. I have seen it upwards of 10,000 RPM! I need to find a simple solution. I know Turks solution would be the best bet but I just can't throw away the money I spent in the Bender kit. Why can't we make this work??
Testarosa
49/45 will work with those specs i gave ya. I prefer a 51/43 but it will be close.
yamaholic22
Active member
those pre-set clutch kits almost always turn out to be off from where the power peak is. Every sled setup is different, a clutch kit like that is just a shotgun set up