Join Date: Oct 2007
Location: Alcona Ontario Canada
Step 1 - Tear it down to assess the damage. Once you know what needs to be replaced and or repaired, you will be in a better position to determine which way to go.
Who knows, maybe you'll be lucky and get away with a top end overhaul which isn't nearly as expensive as a complete motor or even a used motor.
BTW has the heat exchanger been repaired?
2004 MXZ 500SS - Son's
2000 Z370 - Daughter's
2003 Pantera 550 - Wife's
1998 ZL500 - Mine
1988 Springbok Bowrider/110 Johnson