Hello,
I just obtained a Spectrum boat with a 1990 Force 50hp motor on it. It starts up and runs great in the driveway. It has sat for a while, but was stored indoors and looks to be in great condition. I got it from a friend, who was given it from his uncle so I don't have anything into it really yet. When I first got it I knew it was bogging down at wide open so it would need some tinkering. Supposedly the carbs were cleaned, but that was years ago when it was being run.
The first thing I did was switch out the impeller to make sure I wasn't going to get any overheat issues. It was worn and needed it. Then I took it out for a test run and sure enough it would run at wide open, then bog down and sometimes stall. Then it would fire right back up and run again. It seemed to run at up to half throttle for a long time without issue, but sure enough if I open it up it would maybe run for a bit and then bog down again. I did this several times and each time it fired right back up without issue.
I am thinking this is a fuel issue.
Thanks for your suggestions!
Jim
I just obtained a Spectrum boat with a 1990 Force 50hp motor on it. It starts up and runs great in the driveway. It has sat for a while, but was stored indoors and looks to be in great condition. I got it from a friend, who was given it from his uncle so I don't have anything into it really yet. When I first got it I knew it was bogging down at wide open so it would need some tinkering. Supposedly the carbs were cleaned, but that was years ago when it was being run.
The first thing I did was switch out the impeller to make sure I wasn't going to get any overheat issues. It was worn and needed it. Then I took it out for a test run and sure enough it would run at wide open, then bog down and sometimes stall. Then it would fire right back up and run again. It seemed to run at up to half throttle for a long time without issue, but sure enough if I open it up it would maybe run for a bit and then bog down again. I did this several times and each time it fired right back up without issue.
I am thinking this is a fuel issue.
- Fuel Vent is open
- The gas in it was old so I am cleaning the tanks and getting non ethanol.I will put seafoam in there also.
- I pulled the fuel filter which appears to be a screen only and it looks clean.
- I am replacing the fuel lines and bulb with 5/16 hose. It appears to be 3/8 on there but the fitting seems like 5/16. It was held on with wire ties and I think it may be sucking air on the fuel pump line in.
- I am looking at carb rebuild kits, but the serial number is not legible on the sticker so I am not sure if there is a huge variation. It seems like there are a lot of serials for this boat. I can clean it and see how that goes if I can't figure out which kit to get.
- Going to order some plugs as well. I figure this won't hurt.
- I just picked up an actual service manual.
- I can do a compression test if that makes sense, but it seems like it wouldn't run fine for a bit and bog down if there was bad compression.
Thanks for your suggestions!
Jim