Hi all, starting to stress about my HX engine.
Just did a fresh rebuild .5mm over, bored and honed by a professional engine shop which i even double checked with my own bore gauge.
Used a WSM Platinum top end rebuild kit and rebuilt everything according to the seadoo shop manual
Rebuilt both carbs to spec.
Everything is else is stock
The first inital run in i added 500ml of oil to the fuel tank for the first tank of fuel as suggested by the shop manual.
Fresh rebuild showed 75psi in both cylinders, I thought okay everything needs a chance to settle in so i proceeded with the break in
The first 5 hours were broken in at idle using a jetski test tank.
The other 5 were done slowly ramping up to an aggressive riding style.
We are now at about 12-13hrs and still only getting 85psi holding the throttle at WOT whilst cranking.
I am using a cheaper compression tester, and i did think it could be out a bit, but i dont think it could be out this much.
The ski starts instantly.
Idles well, doesnt die and has load of power.
Everything FEELS good.
But the gauge says otherwise.
I have even done a wet test.. no different.
Im waiting for a mate with a snap-on tester, to see if there is any difference.
Does anyone have any thoughts?
Cheers, Shane.
Just did a fresh rebuild .5mm over, bored and honed by a professional engine shop which i even double checked with my own bore gauge.
Used a WSM Platinum top end rebuild kit and rebuilt everything according to the seadoo shop manual
Rebuilt both carbs to spec.
Everything is else is stock
The first inital run in i added 500ml of oil to the fuel tank for the first tank of fuel as suggested by the shop manual.
Fresh rebuild showed 75psi in both cylinders, I thought okay everything needs a chance to settle in so i proceeded with the break in
The first 5 hours were broken in at idle using a jetski test tank.
The other 5 were done slowly ramping up to an aggressive riding style.
We are now at about 12-13hrs and still only getting 85psi holding the throttle at WOT whilst cranking.
I am using a cheaper compression tester, and i did think it could be out a bit, but i dont think it could be out this much.
The ski starts instantly.
Idles well, doesnt die and has load of power.
Everything FEELS good.
But the gauge says otherwise.
I have even done a wet test.. no different.
Im waiting for a mate with a snap-on tester, to see if there is any difference.
Does anyone have any thoughts?
Cheers, Shane.
