Secondary rotational play and other drive issues with a Viper

[Vmax Al]

How much rotational play is typical in a secondary on a sled with reverse?

Last time I rode I noticed if I broke to a stop then accelerated again there was a loud clunk. I first thought the chain tension might need to be adjusted but I found it to be finger tight.
With the belt removed I get about 10-15 degrees of rotation is this normal?

This same trip I also had an issue with the Viper not responding to throttle input after slowing down. I would run at 50ish and then let off, for instance coasting down a hill, when I tried to pick up the throttle again, nothing, didn't matter if I pinned it or eased into it. Then once at a complete stop the idle would drop to like 500 and pick up again to 1800 and I could accelerate normally.
Sometimes when coasting I would use the brake and it felt like it didn't do anything.

Any ideas on where in the drivetrain I should be looking?

I took the chaincase apart and everything appeared normal, no metal in the case or fluid, chain properly tensioned.

Looking for some ideas.

Thanks,
Al

 

[SXlover]

The secondary rotation sounds normal to me as both my Apex and my cousin's Mountain Max are the same way. And not sure about your other issue.

 

[Whammy]

check throttle free play for your lack of acceleration.... on coming off throttle..(tors)