Checked compression. All cylinders are between 75-80 psi. It's a GT200. The book I have says they should be no less than 100 but other places I've read says the GT motors had lower compression. Any comments here as to whether this is good or bad for this motor? If that's low what would cause all 6 to be low? If that's acceptable, what would you check next to troubleshoot the power issue under load? Thanks
I did check for spark and it's getting fire to all 6.
No book, just some other forums I've read that says the GT is lower compression. But I haven't found anywhere that says exactly what it should be for that motor so I don't know if my readings are good or bad. Just strange that they are all low.
It had been sitting/stored for 1.5 - 2 years probably. I will check the throttle cable. I haven't checked that. Thanks!
Yes, it did have ethanol fuel in it. I realize it's not good for them but until recently it was hard to find the non-ethanol fuel where I live. Would you suspect a problem with the fuel lines, bulb, etc? Should I remove the oil injection system and test with mixed gas? What do think the ethanol would have damaged to cause the loss of power? Thanks!
Have you completely drained the fuel system and refilled with fresh, non-ethanol fuel? If this boat sat with ethanol containing gas in the tank for almost 2 years you likely have water and gunk in the entire fuel system. Your lack of power could just be your engine trying to burn fuel with severely diminished quality.
Better the one at 30# .
