[gregorygp]

i have a 93 blaster with riva water box, solas impeller, cauffmann pipe, protec head so on.. the ski runs mint but for one thing. after a little riding the ski acts as if its rpms wont go past say 3500 4500 outa say 7000. while happening if i get the back to leap outa the water it'll rev normal for a bit then if i get off the throttle itll it do it again. ski never seen salt water, electric box has no green n all wires are good, carbs are clean..what the hell could it be?? thanks for any and all help

 

[pvtowens]

I m having the same problem. I see yours was 5 years ago. Did you solve it?

 

[fayrod]

I had the EXACT same problem with my blaster. Take your head off, you might be in for a surprise Mine was a pitted piston due to detonation, reason is un -known.