I am having trouble with a ’95 SL750 and need help. I inherited this ski last year and had about 12 hours on it when the trouble began.
I had it out yesterday and it was running fine. I stopped the ski to drop of one passenger and pick up another. The ski started fine but had no acceleration and the top end and rpms were way down. When I got the ski home I replaced the spark plugs. I’m not sure of the numbering so I’ll call 1 the impeller end and 3 the front of the ski. 1 looked fine, 2 and 3 had a lot of carbon. The fuel filter was fine but I found a little rust-brown water in the fuel separator. I cleaned it out, added a water remover and topped off with 6 gallons of fresh gas.
Today I took the ski out to run the water remover thru the system but the ski never ran any better. It started first or second crank every time and idled at ~ 1200 rpms. But again no acceleration to speak of and top speed was ~30 mph at ~4600 rpms. Again spark plug 1 looked fine, 2 had more carbon than I expected to see and 3 had almost enough carbon to bridge the plug gap. Also, there was more rust-brown water in the fuel separator (but isn’t that what the fuel separator is for?). Let me state here that last 2 times I got gas in my ski I also filled my truck and haven’t had any problems with it.
I have read quite a few posts and have a good idea of what to check but wanted to post this incase someone has already been thru troubleshooting for a similar problem. I haven't check the compression, yet. Any help is greatly appreciated!
I had it out yesterday and it was running fine. I stopped the ski to drop of one passenger and pick up another. The ski started fine but had no acceleration and the top end and rpms were way down. When I got the ski home I replaced the spark plugs. I’m not sure of the numbering so I’ll call 1 the impeller end and 3 the front of the ski. 1 looked fine, 2 and 3 had a lot of carbon. The fuel filter was fine but I found a little rust-brown water in the fuel separator. I cleaned it out, added a water remover and topped off with 6 gallons of fresh gas.
Today I took the ski out to run the water remover thru the system but the ski never ran any better. It started first or second crank every time and idled at ~ 1200 rpms. But again no acceleration to speak of and top speed was ~30 mph at ~4600 rpms. Again spark plug 1 looked fine, 2 had more carbon than I expected to see and 3 had almost enough carbon to bridge the plug gap. Also, there was more rust-brown water in the fuel separator (but isn’t that what the fuel separator is for?). Let me state here that last 2 times I got gas in my ski I also filled my truck and haven’t had any problems with it.
I have read quite a few posts and have a good idea of what to check but wanted to post this incase someone has already been thru troubleshooting for a similar problem. I haven't check the compression, yet. Any help is greatly appreciated!
Comment