Do yourself a favor on those pipes to keep them cracking. Get some header wrap and a hose clamp. One loop around the center of the belly of the pipe with the header wrap and then hose clamp it on there and it'll stop the natural frequency from cracking the metal. The way two-stroke pipes work is they run at their natural frequency and that is also what destroys them.
If you dont run electric start, you can also run the srx front clutch side mount. The viper one has a section removed and 2 bolts instead of 3 for a srx. The viper one has been known to fail inder ditch banging and heavey traction launches.
@jackward1364 no, the mount on the front sid of the motor. Vipers use the same case but remove part of the mount and one bolt to install a starter. It makes this .ount fail under hard loads lke jumping or drag racing with lots of traction. With the srx arm it will last under normal riding. In stock form, they broke often. It will last with
@ interesting, I’ve never heard of that. Can you send me a picture if you have time? Either from a parts diagram or actual picture would be fine. I can’t seem to find/understand what it would look like. 319-826-0338. Thanks Scott! You’re always a good help to me.
Thanks for keeping these old yamaha 2 stroke alive!
Thanks Jack! I saw your post on the group and it's great you put such a good video together for the viper owners.
Do yourself a favor on those pipes to keep them cracking. Get some header wrap and a hose clamp. One loop around the center of the belly of the pipe with the header wrap and then hose clamp it on there and it'll stop the natural frequency from cracking the metal. The way two-stroke pipes work is they run at their natural frequency and that is also what destroys them.
Keep in mind, 8 tooth drivers reduce efficiency as well as require extra track tension wich also reduces efficiency.
Good note, thanks Scott!
If you dont run electric start, you can also run the srx front clutch side mount. The viper one has a section removed and 2 bolts instead of 3 for a srx.
The viper one has been known to fail inder ditch banging and heavey traction launches.
Are you talking about the srx torque arm?
@jackward1364 no, the mount on the front sid of the motor. Vipers use the same case but remove part of the mount and one bolt to install a starter.
It makes this .ount fail under hard loads lke jumping or drag racing with lots of traction. With the srx arm it will last under normal riding.
In stock form, they broke often.
It will last with
@ interesting, I’ve never heard of that. Can you send me a picture if you have time? Either from a parts diagram or actual picture would be fine. I can’t seem to find/understand what it would look like. 319-826-0338. Thanks Scott! You’re always a good help to me.