Boost leak fixed

[uofm]

They found a boost leak. That was the reason only getting 7900 rpms out of it. Now she is running a lot better but I am still short on rpms 8600 to 8750. TD 270 tune stock can with Dalton weights (empty), all stock Yamaha springs. 1.75 137 back country track. Any ideas?

 

[RAMSOMAIR]

Not sure about the TD tune but the Hurricane 270 makes 274hp at 8700rpm!

 

[actionjack]

which weights? Is it broken in?
might wrap sec spring 10° more.

 

[Fleecer]

State weights, springs, helix, belt, tune.

 

[bleedyamaha]

Check your primary spring to make sure it’s not broke.

 

[Sledroll]

Check your primary spring to make sure it’s not broke.

Mine was a little lazy .
Turns out the primary spring was broke in 3 pieces , but still running pretty good !

 

[DMCTurbo]

I'm running 72.8 grams on my QAY70 dalton weights on MS16 SM. O-S-O 35/142 primary spring, dalton BO secondary spring and 35 helix.