Rook there have been many motors in that Gen 1 Bike fail due to timing. IMO 32.5 Is Way To Much for Boost or Nos. You will read over and over, "Run the motor Rich" for these set ups. The belief is extra fueling keeps the pistons cool letting the motor live. When in actual fact Gasoline has a Piss Poor latent heat of vaporisation affect. The extra fuel is not what's saving you.
What is really happening is the Extra fuel is slowing down the flame front. Thus using fuel to retard the timing in a sense. Max compression stroke usually meant to occur 5 to 15 degrees after top dead center. With the increased dynamic compression from the Nos or Boost your timing is pushed back to less than 5. Max compression at top dead center is Boom. So we blame pistons springs etc. Rebuild do it again. UGH !
For my own Gen 1 Bike I pulled the WOT throttle timing. Over Boosted a All stock Motor for three full years. Ran 10 lbs and a leaner AFR. She lives today. To many say impossible,,,, Well I'm doing it again in the 14R. Told me Max was 4lbs of Boost, I went 6lbs. Today going to 8lbs. My blow up coming. 320 hp ALL STOCK.
Now with Current ECU flashes on the sceen guys have Ramped up Timing Again for small gains and huge Risk.
Kawi pulled timing in the 14R down to 30 degrees at wide open throttle. We flashers Ramped Timing back up to pick up 2 hp and Dyno Bragging Rights.
So the flash alone pics up 4 hp, 6 to 7hp with timing advanced. Now we are riding the wire. Get some bad Gas ? This Boggles the mind.
Fact, with regards to the 14R, this new bike does not need much work.
But,,, if you're going to spray the bike you better NOT Have a Flashed ECU or my bet is you blow up,,,
Unless, of course you Slow Down That Flame Front And Run Rich AFR. Which costs horsePower,,, Timing pulled cost hp,, so Most won't do it, Vicious circle.
So in short I hope this info helps some of you.
Yes change the springs Always good insurance.