jimdd810
Chief Petty Officer
- Joined
- Mar 18, 2006
- Messages
- 532
I am working on a 25hp Mercury 4 stroke. Ive been through the carb 3 times with a new kit. Last time out I put the carb on and she ran fine for about an hour. I ran it wot and idle and every where in between. Got to the dock and it wouldnt idle. Infact it wouldnt run unless i feathered the gas untill it reached above 3000 rpms. I dont know how old the fuel is and I changed the primer bulb and hose. Runs great in the test tank. The customer called me a couple of days ago and said she wouldnt run. I went out there and it started right up no problems and ran it for like an hour then. Customer said he went to take it out yesterday and couldnt even get it started. I went out there today and ripped the carb off and recleaned them again. Put them back on still couldnt get it to start and run. Found vent cap shut tight. Started right up. ran great for about an hour and then wouldnt idle for crap again. Customer pulled off the old fuel filter and said it was packed with crud. I put new filter on. I think I will clean the carbs again and use a known good fuel tank and line to see if that helps. Any other suggestions?