Hi guys, I have a 2007 Mercury 25Hp EFI 4 stroke - serial#: 0R181035
When I am just reving the engine with just throttle (Neutral button pushed not in gear) it revs up nice and high and wants to scream at WOT (basically runs great) when I put it in gear and try to WOT it, the motor barely does about a quarter of what it does when it is not in gear at WOT.
Does anyone have any idea why this would happen? Is there something electrical when in gear like a Limp mode? Is it the load from the lower end unit? Also I had to have the lower unit rebuilt, would this have anything to do with it? Like the gear ratio put in or anything under load? The engine is not struggling or anything like that. Was new to me and believe lower end failed while underway, so not sure if there was a limp mode or something triggered electrically
I am running stainless 10 inch diameter with a 11 pitch on it, I know the prop changes performance. The engine is guesstimating to not even get up to 1500rpms when in Gear with WOT and it is not bogging down or anything. it won't let itself go past that rpms
I have had the throttle linkage adjusted and checked and in gear and while just throttle, the throttle linkage moves to the same exact spot so it is not losing traveler distance when in gear
Thank you in advance for ideas
When I am just reving the engine with just throttle (Neutral button pushed not in gear) it revs up nice and high and wants to scream at WOT (basically runs great) when I put it in gear and try to WOT it, the motor barely does about a quarter of what it does when it is not in gear at WOT.
Does anyone have any idea why this would happen? Is there something electrical when in gear like a Limp mode? Is it the load from the lower end unit? Also I had to have the lower unit rebuilt, would this have anything to do with it? Like the gear ratio put in or anything under load? The engine is not struggling or anything like that. Was new to me and believe lower end failed while underway, so not sure if there was a limp mode or something triggered electrically
I am running stainless 10 inch diameter with a 11 pitch on it, I know the prop changes performance. The engine is guesstimating to not even get up to 1500rpms when in Gear with WOT and it is not bogging down or anything. it won't let itself go past that rpms
I have had the throttle linkage adjusted and checked and in gear and while just throttle, the throttle linkage moves to the same exact spot so it is not losing traveler distance when in gear
Thank you in advance for ideas