natemoore
Master Chief Petty Officer
- Joined
- Jun 13, 2009
- Messages
- 844
As some of you know, I bought this boat a couple of years ago and rebuilt the engine and outdrive. I'm at the point to where I'm giving attention to more minor things like voltmeter not working (needed some super glue on magnet that kept slipping off shaft), lights not working (broken wire), etc.
One little nuisance that I'd like to fix is that the engine idle speed tends to vary a lot. Typically, I'll tweak the idle speed in the driveway and be happy with that, but then when I'm out on the water idling, I'll often have to raise the doghouse lid and adjust the idle speed up a little to keep it from stalling. Then that causes a problem with a hit or two of dieseling when I kill the motor. If I idle it back down to avoid any dieseling, I'll often have to idle it up using the control stick.
Here's how it idles in the driveway. http://www.youtube.com/watch?v=CfyUfUl8mF4&feature=related
Some facts about the boat. Engine is completely rebuilt, has a rebuilt Mercarb 2 BBL (buh-barrel), Pertronix Ignitor/Flame Thrower installed. Timing is steady at 4 BTDC.
I haven't opened the plug gap to .040 yet. Could probably use a new set of plug wires.
Idle mixture? Play in throttle linkage? Any other culprits?
One little nuisance that I'd like to fix is that the engine idle speed tends to vary a lot. Typically, I'll tweak the idle speed in the driveway and be happy with that, but then when I'm out on the water idling, I'll often have to raise the doghouse lid and adjust the idle speed up a little to keep it from stalling. Then that causes a problem with a hit or two of dieseling when I kill the motor. If I idle it back down to avoid any dieseling, I'll often have to idle it up using the control stick.
Here's how it idles in the driveway. http://www.youtube.com/watch?v=CfyUfUl8mF4&feature=related
Some facts about the boat. Engine is completely rebuilt, has a rebuilt Mercarb 2 BBL (buh-barrel), Pertronix Ignitor/Flame Thrower installed. Timing is steady at 4 BTDC.
I haven't opened the plug gap to .040 yet. Could probably use a new set of plug wires.
Idle mixture? Play in throttle linkage? Any other culprits?
