Hello all.....
Engine is a 1988 # J60TLCCR .
New to me. When i got the boat/motor it ran great on the muffs, shifted into fwd and rev and revved fine in gear and neutral.
First time in the lake it started and idled fine. Shifted into gear and throttle to first detent= all fine. As soon as i tried to push it past that point it would bog down and stall. I tried a half dozen more times with squeezing the bulb with no change.
Fast forward to now......i had the carbs professionally rebuilt, all fuel lines changed, 2 different fuel tanks with fresh mixed gas (50-1) compression is 120 on all 3.
coils have been tested and are good. charging is good. new champion plugs gapped to .30. all electrical connections checked and or repaired with new connectors and heat shrink. link/sync done.
The motor runs fantastic at high speeds now, it sounds way nicer on the muffs than it did before. starts right up and the bulb stays hard.
The problem is that now i can't get it to idle lower than about 1200+ rpm on the muffs. My mechanic is doing all of this work and once she tries to adjust the timing advance back the motor starts to stumble and miss....at around 1200 she smooths right out and runs like a dream.......
So...after perusing this awesome board, i have a couple of questions.
1- what should the idle on muffs be for this motor?
2- could this possibly be a power pack issue?
Thanks in advance for any help!
Mike.
Engine is a 1988 # J60TLCCR .
New to me. When i got the boat/motor it ran great on the muffs, shifted into fwd and rev and revved fine in gear and neutral.
First time in the lake it started and idled fine. Shifted into gear and throttle to first detent= all fine. As soon as i tried to push it past that point it would bog down and stall. I tried a half dozen more times with squeezing the bulb with no change.
Fast forward to now......i had the carbs professionally rebuilt, all fuel lines changed, 2 different fuel tanks with fresh mixed gas (50-1) compression is 120 on all 3.
coils have been tested and are good. charging is good. new champion plugs gapped to .30. all electrical connections checked and or repaired with new connectors and heat shrink. link/sync done.
The motor runs fantastic at high speeds now, it sounds way nicer on the muffs than it did before. starts right up and the bulb stays hard.
The problem is that now i can't get it to idle lower than about 1200+ rpm on the muffs. My mechanic is doing all of this work and once she tries to adjust the timing advance back the motor starts to stumble and miss....at around 1200 she smooths right out and runs like a dream.......
So...after perusing this awesome board, i have a couple of questions.
1- what should the idle on muffs be for this motor?
2- could this possibly be a power pack issue?
Thanks in advance for any help!
Mike.