money pit1
Recruit
- Joined
- Jul 5, 2010
- Messages
- 3
I got an 05 Yamaha EFI 4 stroke jet I bought a few weeks ago that had set for a year or so due to his health. I put it on a 17x56 allweld jon boat and ran it fine for 2 or 3 trips of 5 to 7 miles. Running up river last trip it was losing power so loaded it up. Called local dealer it was bought from and started looking for the things he said to look for. I pulled jet and checked bearing and shims looked good, replaced fuel filter on back of motor and added a 10 micron inline filter, Pulled injector fuel pump housing and cleaned looked like sand out of it and sent injectors to shop and had cleaned and tested and talked to person that did work and said they was somewhat dirty but not enough to stop flow. Test report shows all working good from start to finish. Checked injector fuel pump with pressure test and had nothing there. Change fuel pump 300 bucks and cleaned housing and took down to test run samething no top end power. Changed spark plugs and throtle cable in hopes but samething there. Have checked throtle sensor with ohms and was reading good. I'm at a loss on this thing. Have been reading up on e10 fuels and don,t know if that might have something to do with it. Will put additives in fuel from now on. Any ideas will be greatly used to get back on the water. Going to take it back to dealer motor was bought from and see what he thinks after holidays.