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  1. J

    Deactivated circuit ?

    1997 Johnson o/b 2 stroke 60hp. Engine stutters on acceleration, idles fine...Took to local marina mechanic. Diagnosed a deactivated circuit, repair ticket states reactivated circuit. I took the boat out after repair and it ran great for about 5 or 10 minutes then developed stutter again. I did...
  2. J

    Mystery Problem

    Just bought a used a 2005 50 hp 2 stroke Merc on a 20 ft pontoon. The engine will not rev past 4000k RPM at WOT. Max WOT should be closer to 5 to 55k. Taken to 2 diff mechanics and cannot figure out problem. No water in ntoons,,firing on all cyls, correct prop, engine runs great just will not...
  3. J

    WOT limited RPM

    Bought a 20 ft. Pontoon Boat, 50 hp 2005 Merc. O/B. The boat is very slow, even for a Pontoon and I've had a bunch. The WOT RPM's is only 4000, the manual says it should be between 5000 to 5500 rpm. Any ideas would be appreciated. I' running out of boat money already. Be great if there's an...
  4. J

    Dropping RPMs

    25' CC with 2002 Mercury ob 250EFI. Throughout the day of fishing I'll be cruising along at about 5k rpm and the engine will bog and drop to about 4k RPMs, almost like its not firing on a cylinder and is intermittant. Sometimes it will do it everytime I switch fishing spots and sometimes it...
  5. J

    Boat lists to Port

    I've seen this topic covered before and everyone advises trim tabs. I have a 25 ft Pro Sport CC with a Merc 250 EFI. with trim tabs and the boat still list to port. The trim tabs don't seem to travel up and down very far. Any suggestions or do they make trim tabs with greater travel? Thanks
  6. J

    Starter Issue

    I have a 25 ft. CC with a 2002 Merc 250hp XL EFI O/B. Turned key and just heard whining noise. Charged up both batteries . The starter was spinning but not engaging/ Had an xtra starter so I switched them out and still just spins but not engaging. If the solenoid is bad would the starter spin at...
  7. J

    Electrical short help

    I have a 1999 CC Aquasport with a 150 Johnson. I was changing the washdown pump and accidentally touched the pos and negs together and shorted out the circuit. Now none of my accesory switches work.(bilge,nav lights, coutesy lights etc). Is there a main fuse or breaker somewhere that may be...
  8. J

    Fuel Problem?

    I just bought a 21 ft pontoon boat with a 1996 Merc. 2 stroke 90 hp o.b. It runs fine except it seems to lack speed. Took it to my mechanic and he said a short fuel hose at the carb was kinked and he changed the hose. Still have problem. With the throttle wide open only do 15mph on speedo, rpms...
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