69starcraft
Petty Officer 2nd Class
- Joined
- Jul 11, 2007
- Messages
- 169
I finally took the boat out yesterday for the maiden voyage yesterday. Almost lost my antique truck in the lake while launching but thats another story
We went out twice yesterday. First time the 48 Spl motor ran fine the 40 minutes we were out on the lake and cruised around nicely. However when we got back to the dock I cut it off and it wouldn't start....checked and the starter bolts had come loose (maybe were never tightened)
So fixed that and when the wife came home we went out again, using her van to launch this time, and had a blast.
However after about 20 minutes of cruising at about 1/2 - 3/4 WOT all of a sudden she started surging, then slowing down until we were cruising at about 1/4 throttle even though the throttle lever was at WOT
Seemed the best we could get was a slow cruise out of it but she didn't sputter and didn't die. I could shut it off and restart and she idles fine.
Just before we made it back to the ramp I happened to push in the key (the "cold start" button) and she lept out of the water and took off (remember that throttle lever still at WOT)
If I held the key pushed in she ran like a champ. Soon as I released the cold start button she was back to only 1/4 throttle
I thought at first fuel pump, but wonder why it runs great with the cold start lever pushed in?? On this motor it's not a choke assembly, but more of an injector according to tashas D that squirts some fuel directly into the cylinder for a cold start.
Any suggestions?
One thing I will say for this motor is it DID NOT leave us stranded and kept on chugging.
We went out twice yesterday. First time the 48 Spl motor ran fine the 40 minutes we were out on the lake and cruised around nicely. However when we got back to the dock I cut it off and it wouldn't start....checked and the starter bolts had come loose (maybe were never tightened)
So fixed that and when the wife came home we went out again, using her van to launch this time, and had a blast.
However after about 20 minutes of cruising at about 1/2 - 3/4 WOT all of a sudden she started surging, then slowing down until we were cruising at about 1/4 throttle even though the throttle lever was at WOT
Seemed the best we could get was a slow cruise out of it but she didn't sputter and didn't die. I could shut it off and restart and she idles fine.
Just before we made it back to the ramp I happened to push in the key (the "cold start" button) and she lept out of the water and took off (remember that throttle lever still at WOT)
If I held the key pushed in she ran like a champ. Soon as I released the cold start button she was back to only 1/4 throttle
I thought at first fuel pump, but wonder why it runs great with the cold start lever pushed in?? On this motor it's not a choke assembly, but more of an injector according to tashas D that squirts some fuel directly into the cylinder for a cold start.
Any suggestions?
One thing I will say for this motor is it DID NOT leave us stranded and kept on chugging.