1723e RPM issues

[Bcwoods]

Are you sure your tachometer is accurate?

That’s what I was getting ready to add to this post. I purchased a digital tach. Throttled up to full power, engaged rear pto and rear pto reads around 680rpm. So at full throttle that’s probably accurate so now I assume the dash tach is messed up at higher rpm. It reads correct idle of 900. So I guess when the alternator fried it messed up the dash cluster as well.

 

[Dmacleo]

If I remember right (jese I was just messing with one 3 days ago you think I can remember????) rpm section of tach is mechanical, only hour meter electric.
did you try with air filter and fuel cap removed yet? costs nothing takes 5 minutes. rule out airflow and tank vent issues.

 

[Bcwoods]

If I remember right (jese I was just messing with one 3 days ago you think I can remember????) rpm section of tach is mechanical, only hour meter electric.
did you try with air filter and fuel cap removed yet? costs nothing takes 5 minutes. rule out airflow and tank vent issues.

I did the air filter and fuel cap check. The dash cluster is all electric. While running I can remove plug from behind dash cluster, tach and hour meter go off.

 

[Dmacleo]

maybe what I thought was mech cable was harness then.

 

[Dmacleo]

That’s what I was getting ready to add to this post. I purchased a digital tach. Throttled up to full power, engaged rear pto and rear pto reads around 680rpm. So at full throttle that’s probably accurate so now I assume the dash tach is messed up at higher rpm. It reads correct idle of 900. So I guess when the alternator fried it messed up the dash cluster as well.

gc2400 mechanical tach the 540 mark is just over 2500rpm, I rev limit at approx 2850 +/- rpm so 680rpm is prob dead on.

ug thats about 590$ for new one.