blaster prop help please!!!! still cavitates

[sflsurfrider]

What year superjet? What color are your drive couplers? On earlier couplers (ugly pale green) have a plastic plug with an o-ring in the center of them and if they are not sealed or missing they will leak air in the prop shaft and cause problems like you are describing, On full out engine builds, change the intermediate shaft coupler to the later style OEM black coupler that Yamaha eliminated the plastic insert.
P.S. Switch to a skat swirl for it too...

what are your thoughts on the swirl VS concord?

 

[Matt_E]

You know my thoughts....

Concord = overhyped, overpriced

 

[sflsurfrider]

You know my thoughts....

Concord = overhyped, overpriced

yeah, i know what your thoughts are, you biased, tunnel-visioned, one-way.... person, you!

i get new concords @ dealer cost. price isnt an issue. ive just never used a swirl and from what i gather, its you and harrison against the world LOL!