I posted this in evinrude repair then thought that might be wrong so here it is again, Im sorry
Ok guys, here's the problem I have. I took the boat to the lake this morning (1991 Javelin 373FS, fish n ski 1990 evinrude XP 150HP) to go fishing. I pull out of no wake zone and punch the throttle, it jumps on plane in a few seconds and runs like a scolded dog and does this all day. I get back this afternoon and take it down to the river to fish and couldnt get it to plane for over 2 minutes then when it did nose over it started bouncin and slamming into the water so hard I thought it would break in half. It seems to do this only when there is current on the river or if the lake is extremely choppy (4th of July, sunday afternoon, etc.). In fact, I can idle to a calm area of the lake and it will run fine, what could be causing this problem? I am at a loss, I thought it might be a power issue so I de-carbed the motor, changed fuel filter, fuel line, primer bulb but after taking an experienced (auto) mechanic out to listen to the motor I got a clean bill of health but the problem still exists in the afore mentioned situations, any ideas would be greatly appreciated. Please let me know what you think. Also, I took off the hydrofoil that was installed and dropped the trim pin as low as it would go to remove a porpoising issue that existed whenever you were accelerating or driving between 25MPH all the way through 51-52 MPH. Sorry for the long post and thank again for reading.
Ok guys, here's the problem I have. I took the boat to the lake this morning (1991 Javelin 373FS, fish n ski 1990 evinrude XP 150HP) to go fishing. I pull out of no wake zone and punch the throttle, it jumps on plane in a few seconds and runs like a scolded dog and does this all day. I get back this afternoon and take it down to the river to fish and couldnt get it to plane for over 2 minutes then when it did nose over it started bouncin and slamming into the water so hard I thought it would break in half. It seems to do this only when there is current on the river or if the lake is extremely choppy (4th of July, sunday afternoon, etc.). In fact, I can idle to a calm area of the lake and it will run fine, what could be causing this problem? I am at a loss, I thought it might be a power issue so I de-carbed the motor, changed fuel filter, fuel line, primer bulb but after taking an experienced (auto) mechanic out to listen to the motor I got a clean bill of health but the problem still exists in the afore mentioned situations, any ideas would be greatly appreciated. Please let me know what you think. Also, I took off the hydrofoil that was installed and dropped the trim pin as low as it would go to remove a porpoising issue that existed whenever you were accelerating or driving between 25MPH all the way through 51-52 MPH. Sorry for the long post and thank again for reading.
