Jeepster318
Recruit
- Joined
- Mar 25, 2006
- Messages
- 3
long story made short. I purchased a 1990 Tracker with a "classic 50" Merc 4 cly motor. for a grand . compression checked out at 138 psi on all clys.<br /> after repairing center rib leaks and some stress cracks, the boat runs great. whats the max rpm on this engine? it has a stainless steel prop and <br />i'm not sure of the pitch but it will spin up to 6200 rpm. I don't want to blow the engine. I've had 4 different Merc's and destroyed them all.<br />When a 200 hp Merc blows at 6300 rpm its pretty impressive. <br /> I've had 3 Rude's and never hurt the first one.