Hello guys I'm trying to work on my dads boat and I have found a lot of help on here for mine so hoping for answers. So here is what he has.
a 94 yamaha 70hp running great for 15 trips or so then went to take it out. It started & idled great but when we put it in gear & throttled it up it did nothing. We could hear/feel it go into gear but it stayed at idle? We got it home & checked the prop & it spun freely. We hooked it up to elephant ears & it ran great. Reved up great & went into gear & the throttle spun just like its suppose to. My dad took it out about 3 times & it worked perfect. Then today he took it out & it was doing the same thing. Got it home & hooked it up to water hose & works fine.
so from some reason it starts & runs great & works put of water but in water (under a load) it just idles & will not REV up.
a 94 yamaha 70hp running great for 15 trips or so then went to take it out. It started & idled great but when we put it in gear & throttled it up it did nothing. We could hear/feel it go into gear but it stayed at idle? We got it home & checked the prop & it spun freely. We hooked it up to elephant ears & it ran great. Reved up great & went into gear & the throttle spun just like its suppose to. My dad took it out about 3 times & it worked perfect. Then today he took it out & it was doing the same thing. Got it home & hooked it up to water hose & works fine.
so from some reason it starts & runs great & works put of water but in water (under a load) it just idles & will not REV up.