Nytro RPM issues

[Hangtime]

Went for my first ride today after new tunnel and track, rode for about 5 miles and things seemed ok. Was going to do a circle and pulled it over too hard and ended up on it's side. Got sled up righted , and sled started to hit rev limiter every time I went to boost. Adusted shockwave so RPM went back down to 8800-8900. Sled is now like a rocket, smile on face then wham...RPM down to 7000-7200 and sound like secondary has marbles in it when boost is started in . Looked over for awhile, belt deflection seemed a little low, just about even with secondary . Tried new belt .. No change. still low rpm's & noise. then suddenly all's fine for about 3 minutes then back again ... This is going to drive me nuts . sled ran great last year, just changed 1 gear, tunnel and track. Secondary spring does not look broke or spinning.

Anyone have this issue ????????

Thanks Hangtime

 

[Hangtime]

hope your all out riding !

 

[MotoPsycho]

Check yer drive chain tension?

 

[0007]

Where's your boost during these RPM changes?
I had a bad TCV on my MCX kit and boost was all over the place