Where do you and should you run your RPMs on a 2 cycle engine.

[Fleetwin]

Re: Where do you and should you run your RPMs on a 2 cycle engine.

How about this one?

https://www.youtube.com/watch?v=T5WO9nulOXc

 

[dolluper]

Re: Where do you and should you run your RPMs on a 2 cycle engine.

Me TOO 2 strokes WIDE OPEN then cut.....doesn't do the job SHARPEN IT
Hey James hows it going I died and came back really dead and brote back is OMC still kicking

 

[bassman284]

Re: Where do you and should you run your RPMs on a 2 cycle engine.

How about this one?

https://www.youtube.com/watch?v=T5WO9nulOXc

Or my personal favorite, this:

V8 chain saw

 

[dingbat]

Re: Where do you and should you run your RPMs on a 2 cycle engine.

So the best method is to have a couple large friends hold the aft of the boat out of water, put the O/B in gear, bring up to WOT and then drop it in the water? Umm, ok...

I couldn't have said it myself any better....lol

 

[bigdee]

Re: Where do you and should you run your RPMs on a 2 cycle engine.

So the best method is to have a couple large friends hold the aft of the boat out of water, put the O/B in gear, bring up to WOT and then drop it in the water? Umm, ok...

Water is a fluid coupling....a log ain't.

 

[dingbat]

Re: Where do you and should you run your RPMs on a 2 cycle engine.

Water is a fluid coupling....a log ain't.

Water is a fluid but it's not a coupling. The coupling (clutch) is the prop and prop slip can be anywhere from zero to infinity. The clutch on a chainsaw has a same potential so I don't see the point.

In the situation of a chain saw, the RPM makes up for the machines lack of torque (see formula below) in the low RPM range. RPM comes into play to maintain cutting speed, but it is not the determining factor in a machine's ability to start from a standing stop.

As long at the machine's torque output is greater than the demand, the machine will have no problem starting from a standing stop. A high torque, low RPM machine will generate the same "Power" as a high rpm, low torque machine.

Power (in kW) = 2(pi)(N)(T) / 60000.

N = rpm
T = torque in N-m.

 

[bigdee]

Re: Where do you and should you run your RPMs on a 2 cycle engine.

Water is a fluid but it's not a coupling. The coupling (clutch) is the prop and prop slip can be anywhere from zero to infinity. The clutch on a chainsaw has a same potential so I don't see the point.

No the chainsaw clutch is pretty much a dead load lock up. A analogy would be a car with a torque converter vs a clutch

In the situation of a chain saw, the RPM makes up for the machines lack of torque (see formula below) in the low RPM range. RPM comes into play to maintain cutting speed, but it is not the determining factor in a machine's ability to start from a standing stop.

As long at the machine's torque output is greater than the demand, the machine will have no problem starting from a standing stop. A high torque, low RPM machine will generate the same "Power" as a high rpm, low torque machine.

This is true but not related to a chainsaw
Power (in kW) = 2(pi)(N)(T) / 60000.

N = rpm
T = torque in N-m.

No the chainsaw clutch is pretty much a dead load lock up. A good analogy would be a car with a torque converter vs a clutch. It would be almost impossible to get a car moving in 5th gear using the clutch but it would be possible with a torque converter. With that being said it is highly possible a chainsaw could start with the chain engaged with the log IF it had a torque converter.
This is getting SILLY...I'm going to shut up!