Riptideusa
Recruit
- Joined
- Aug 30, 2011
- Messages
- 4
Hey Guys, please help me
I been through alot, but learned so much, 1st thing 1st, i have a 2000 yamaha 115 4 stroke, i put the boat away for the winter not knowing that i needed to drain the vst tank, the boat ran fine when it went into storage, when it went in this season it started up fine, idle fine, but when i reached 5000 rpms it started to drop in rpms, and held a steady 4600 rpms. changed all filters and drained fuel tank. the problem still exist, then i heard about the vst tank and the filter for the high preasure fuel pump, so off to the dealer it went, i asked them to change the vst filter and they tryed to sell me a complete fuel system, $1800...well i took the boat home and got a service manual, ripped into it and changed the vst filter, it was all dirty, 2/3 clogged, i ran the boat on the hose for a few min after putting it back together, it ran perfect, idle perfect, so the wet test was next, dropped it in and it started up fine, and i solved the problem of reaching wot full rpms. i ran the boat for 15 min or more, as i was bringing it in to thr ramp and backing off the trottle it started bogging and spittin, and when i took it out of gear it would not idle smooth, and would eventually stall out, when i went to start it the rpms shot to 3000 rpms for 20 seconds then drop and would run rough then stall. i kept trying it and it still continues to shoot up to 3000rpms and drop then run rough and stall. i cleaned the ics and vst filter is clear...it still runs great when underway...i sent injectors out and cleaned them, new thermostat...still have the problem
thanks so much
I been through alot, but learned so much, 1st thing 1st, i have a 2000 yamaha 115 4 stroke, i put the boat away for the winter not knowing that i needed to drain the vst tank, the boat ran fine when it went into storage, when it went in this season it started up fine, idle fine, but when i reached 5000 rpms it started to drop in rpms, and held a steady 4600 rpms. changed all filters and drained fuel tank. the problem still exist, then i heard about the vst tank and the filter for the high preasure fuel pump, so off to the dealer it went, i asked them to change the vst filter and they tryed to sell me a complete fuel system, $1800...well i took the boat home and got a service manual, ripped into it and changed the vst filter, it was all dirty, 2/3 clogged, i ran the boat on the hose for a few min after putting it back together, it ran perfect, idle perfect, so the wet test was next, dropped it in and it started up fine, and i solved the problem of reaching wot full rpms. i ran the boat for 15 min or more, as i was bringing it in to thr ramp and backing off the trottle it started bogging and spittin, and when i took it out of gear it would not idle smooth, and would eventually stall out, when i went to start it the rpms shot to 3000 rpms for 20 seconds then drop and would run rough then stall. i kept trying it and it still continues to shoot up to 3000rpms and drop then run rough and stall. i cleaned the ics and vst filter is clear...it still runs great when underway...i sent injectors out and cleaned them, new thermostat...still have the problem
thanks so much