Can't go over 2500 rpm's?

[macojoe]

So this is a different motor than the one that was on the boat last week, correct?

Nope same motor, just got the numbers off and looked it up to make sure what it is, and 86 is the deal. And yes VRO is gone long before I got the motor.

Thanks

[bigshrimpin]

http://www.outboardignition.com/page32.asp

S.L.O.W. ***8211; Speed Limiting Oil Warning system. Limits the RPM of the engine to approximately 2500 RPM in
order to reduce the damage to the engine caused by a no oil or overheat condition.

Engines with S.L.O.W.
Engine will not rev beyond 2500 RPM:

1. Use a temperature probe and verify that the engine is not overheating.
2. Disconnect the tan temperature wire from the pack and retest. If the engine now performs properly, replace the temperature switch.
3. Make sure the tan temperature switch wire is not located next to a spark plug wire.

[macojoe]

Just back in from the water, Same thing Won't go over 2500??

Disconnected the tan wires and it had no effect

Oils has been disconnected for years so I am sure there is nothing there.

Tied to a empty mooring and cked things out, motor starts and runs great, raced the engine in neutral and it gets full throw and full rpm's, but as soon as you put in gear and load up the motor its still at the 2500??

Why is it for the last few years I get half way threw the season and bam I get screwed??

[nymack66]

Please check for spark on all cylinders, Double check all connectors to your packs; Looks like you are running on 3 cylinders not 6 may be one pack is blown. You will have to test will find it. Also observe the movement of the advance (under fly wheel) make sure it moves freely back and forth. Ferm, Skool where are you guys ? Help !!

[macojoe]

Spark ok on all 6 plugs, all connectors are good, all linkage is moving to there stops, throttle, timing advance, and choke.

Talked to skools on the phone 1 hour ago, he thinks wire harness, or stator?? But says to do the wire harness first as I have some issues there.

I have a brand new harness for the boat side, and BS is going to bring me the motor side. But I have to wait for Friday for him to get here. That's ok going to blow tomorrow and rain all day Thursday.

[tsubaki]

I don't understand how this problem presented itself without some prompting.
Did any wires somehow get arced, grounded or shorted? Normally that would damage a powerpack.
If it was the magnets shifting in the flywheel it wouldn't run or at best run like crap.
Whatever it is, at least it happened in the yard and not offshore.
Look at it that way.

[macojoe]

BS and I were fixing the shifter and had the cowling off and hanging, that might have broke a wire waiting to happen?? There seems to be a few like that, that the old owner just taped up.

[steplift20]

heres a stupid suggestion do you have the right prop size? to big and it wont go fast

[spareparts]

if its too much pitch, it wont allow the engine to rev to a higher rpm where it makes more power, you can step down in pitch and make more speed if the engine wasn't turning enough rpm