5.7 liter 1994 mercruiser on starcraft 2010 wont rev past 2000 rpm on water

jjraymo

Recruit
Joined
Aug 25, 2013
Messages
1
i have a 1994 starcraft 2010 with a 5.7 liter mercruiser I/o. the motor revs up past 2000 rpm with muffs or in neutral in the water, put it in gear and it wont get past 2000 rpms. I have changed fuel filter/water separator, plugs and plug wires, pickup coil, rotor and distributor cap, ignition coil and fuel pump. carb seems to be working ok. it is a 4 barrel, not sure what brand. any help would be appreciated.
 

hivoltg

Petty Officer 2nd Class
Joined
Jul 15, 2013
Messages
186
Re: 5.7 liter 1994 mercruiser on starcraft 2010 wont rev past 2000 rpm on water

What does the motor do at 2k rpm on the water? Stumble backfire die?

Have you checked the timing?

Please provide the serial number of the motor.
 
Top