Finally got my ski running great, awesome power and a nice flat torque curve that was super nice to ride. Then I get some engine noise and pull it in to find low compression on the mag cylinder. To twist the knife it submerges while towing and fills with water....not that it really matters though because I found that one of my rod bearings went through the topend and smashed it up. Now Im broke and outta comission...3 weeks before our ride. :crying:
So long big bore....
- Thread starter yamanube
- Start date
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
Just get a SUPERJET?
Agreed
WFO Speedracer
A lifetime ban is like a lifetime warranty !
- Location
- Alabama
S*it happens?
Flat Brapp
h2o
- Location
- Jacksonville florida
Ouch. Too many times i have been down that road. I buy all new parts now, it costs allot more and it takes forever for me to save but i feel better while riding.
Yeah I am trying to scrape up some money to buy a used 701 to throw in to get on the water quickly to finish out the season and will rebuild the BB over winter with new parts.
Kennay
Squarenose for the _____
- Location
- Myrtle Beach, SC
Bummer.
Did you buy it off of here a while back?
Did you buy it off of here a while back?
x2
I bought a BB topend advertised as fresh bored, honed, ready to go with 84mm piston kit.
It ended up being too big for even 84.5mm pistons.
Used parts suck (sometimes)
SXRguyinMA
Life's a beach
- Location
- Leicester MA
looks like detonation to me (from too-high compression, too-low octane, etc), not a rod bearing, the flame fronts collide in the combution chamber giving you knock and subsequently blowing chunks of aluminum out of the piston. I think if it were a rod bearing it'd be worse. But then again I haven't seen the rod/crank so I cant say for sure
Big Kahuna
Administrator
- Location
- Tuscaloosa, AL
Foreign object damage......... detonation is not going to engrave gouges like that, but bits of metal will. Front piston looks totally different....
So those large chunks of steel that are stuck in the piston and dome would be from what? I was also running 50% 92 octain and 50%110 race gas to prevent deto. And that rod is missing 50% of the bearings.
SXRguyinMA
Life's a beach
- Location
- Leicester MA
If you all read my entire post I said I havent seen the rod so I cant say for sure, from a wuick look at the pics that it what it looked like to me, NOW THAT I KNOW the rod is missing some of the bearings its obvious, but I did not know that fact when I made the original post :nutkick:
SXRguyinMA
Life's a beach
- Location
- Leicester MA
its is a superjet motor, thats his whole problem! :slap:
its a superjet motor doing its best attempt at a kawi imitation.
you can also tell by the green.
SXRguyinMA
Life's a beach
- Location
- Leicester MA
tell what by the green? I know the guy that sold it, its a superjet motor that came out of his superjet that he painted green
t'was a joke.
eating a bearing? pretending to be a kawi? green?
....nevermind. :dunno:
If you look at the pics, you can see pieces of needle bearings in the head.