usually yes but not in the case I witnessed, but thenagain like JW said...there´s a lot of variable 200rpm is easily within the tolerance...add Trim indicator tolerance errors to that and it might be the engines still run ok..

Had a Issue with 1 at he shop 300 off changed fuel filter Fixed it

I posted this same message on the General Q & A section and got one short response. I guess the Fountain family is a pretty close knit bunch - Thanks a ton!

Why are you spinning out vs. in?

Good mechanics can feel the engines reach sync. If conditions are right you feel the boat, its vibs and the sounds of the engine. 3500 or 4000 rpm is a good place to start. When you feel and hear the sweet spot your tachs should match, that is in a perfect world. I do not have to read my tachs to know where I am in the RPM world. As far as perfection, use a
tach setting device that diesels use. A photo strip is taped to the harmonic balancer and a emitter is temp affixed to the engine> it counts the actual shaft rotations. we use this to set fuel flow meter computers.

I am spinning out.

Are you guys just going on the rpms vs the throttle lever positions?

Speaking just for me, my sticks are dead nuts together from idle through WOT. After minor adjusting.

John

Mine used to be dead nuts also. 2 yrs ago I took the gauges out and shifter/throttles out for updating. Since reinstalled, my levers are off a some too. Just never got around to readjusting the linkage. I listen for the WA WA sound for the in sync tone.

That WA WA sound is what I live for.:cool-smiley-011: