760 Superjet

[barefoot11]

Hello, I have a superjet with a 760 motor with Riva head and B pipe and was wondering what spark plugs to run, or how to find out which spark plugs to run?

Also what impeller for the best bottom end?

Thanks

 

[Big Kahuna]

BR8ES

for prop, either a skat freeride 12-17 or a Solas Concorde. Give IMPROS a buzz, Dave will hook you up.

 

[#ZERO]

Get the NGK BR8ES-SOLID top plugs so the ends don't vibrate loose.

 

[barefoot11]

Thanks Guys, it had br7es in it, but i wasn't sure thats what it should be, Im going to switch them to the 8s.

it has (i believe) 11-16 freestyle impeller but it revs out with out really going any where. So moving to the 12-17 do you think would be a better fit.

 

[Bedpost]

it has (i believe) 11-16 freestyle impeller but it revs out with out really going any where. So moving to the 12-17 do you think would be a better fit.

sure its not worn, chiped/dented? could be cavitating

 

[chasingdaylight]

Thanks Guys, it had br7es in it, but i wasn't sure thats what it should be, Im going to switch them to the 8s.

it has (i believe) 11-16 freestyle impeller but it revs out with out really going any where. So moving to the 12-17 do you think would be a better fit.

br7 are fine too. in heavy surf sometimes even better.

 

[barefoot11]

sure its not worn, chiped/dented? could be cavitating

no it looked pertty good when i pulled the pump. but i didnt pull the impeller out of the pump.

 

[Waternut]

I'd really look into what's causing that prop to cavitate before ordering another one. If the leading and trailing edges of the prop look perfect then you may want to check the pump shoe and how it and the pump attach to the hull. Could be leaking...