WOT Question?
 

I've been waiting forever to have the extra $ to purchase a Tiny Tach. I was finally able to order one 2 weeks ago.

I finally got a chance to work on the 1450 over the weekend. I set the throttle at 3600 RPM no load with the tiny tach. I noticed when I engage the PTO with a 44A deck mounted, the RPM (at WOT) would drop to around ~3000. Does this sound about right? If one has a tach available - would it be harmful to allow "room" at the top end for the extra 600 RPM? Ex. set the throttle at 3/4 WOT for 3600 RPM, so that with deck engaged the WOT would permit the extra 600 RPM?

Thanks for any thoughts,

-Calvin

RPM's dropping under load seems perfectly normal for any size engine. I'd not exceed the max RPM under any load condition.

John

that's what i thought the governor was for? if a generator was to drop RPM it wouldn't be at the right 60Hz cycle so it has to maintain 3600 rpm right? I really don't know just more questions :)

I think the governor is to attempt to keep it from dropping TOO low, and from over-revving.

Think of your car going up a steep hill pulling a trailer with the cruise control on. At some point, it's going to start slowing down in RPM even with cruise on, unless it downshifts, or unless you have a very powerful engine.

John

you may want to adjust your carb a little while underload. My 1450 WOT is no load is 3600rpm, turning on the 44A deck drops it to ~3500 rpm. While moving and cutting average grass height its about 3400-3450 rpm's. If the grass is very high and heavy I have seen it drop to 3200rpm's (she is working hard at this point)

Either way a few data points for you

Any pictures of the tach installed?:WWP:

Yes we do!:TTWWP:

That's right. :biggrin2:

I'm sorry - I did a cheesy install so I could move it around if I had to - nothing fancy at all - although I'm very happy with the product.

-Calvin