Saw video thread

[tree monkey]

Not on the JMS 661

yep, the one I had here popped with a stock key

 

[huskyboy]

Does resetting the saw help?

 

[tree monkey]

the porting causes it, why I do not know, didn't waste much time with it

 

[tree monkey]

Does resetting the saw help?

maybe for a few cuts, then it's back to jiffypop

 

[X 66 stang347 X]

You have to pull some power out to stop the "pop" or four stroke. Mine was less timing or not open exhaust as much.
The mtronic limits rpm with fuel and timing not by cutting spark.
Yes resetting stops the popping some til it relearns.

 

[X 66 stang347 X]

yep, the one I had here popped with a stock key

Yep, means it popped advanced more than a key and with stock key?

 

[tree monkey]

jms cylinder popped with a stock key.

my cylinder will not pop no matter what you do with ign timing.

 

[huskihl]

Mine needs 020 or less advance to stop popping. You have to much advance?

This one was already advanced. After switching from jms to stock to my ported and back and forth 15 times I'm convinced it' the mtronic that won' lean out enough to run that cylinder. It pops progressively less the hotter the saw gets. If I do an mtron reset, it pops twice as bad and gets progressively better as the saw heats up. It's rich and won't lean out more. If i put either of the cylinders I ported on it, there's no popping at all

 

[huskihl]

“The more they pop the stronger they get”.

Bullshìt. That's the exact opposite of the truth. The hotter this saw gets, the less it pops and gets stronger

 

[huskihl]

maybe for a few cuts, then it's back to jiffypop

This one pops like hell after a reset. And pops less as it warms up and learns. It just won't warm up and learn enough

 

[X 66 stang347 X]

It's running to close to the programmed rev limit and adding fuel to slow it down. Have you tried putting a heavy load on it with a long bar?

 

[huskihl]

It's running to close to the programmed rev limit and adding fuel to slow it down. Have you tried putting a heavy load on it with a long bar?

It runs less rpm in the cut than mine and my cylinder doesn't do it. But I agree, the more load, the less it pops

 

[tree monkey]

try a 066 carb on it

 

[tree monkey]

explain these please

 

[tree monkey]

It runs less rpm in the cut than mine and my cylinder doesn't do it. But I agree, the more load, the less it pops

your results are basically the same as mine

 

[huskihl]

your results are basically the same as mine

Ever tried removing the flange? Ain't much room for fuel to move up through the middle of the case. I'm thinking the flange might be helping it

 

[tree monkey]

no. and with no air/fuel going through the lowers, its not going to cool as well

 

[tree monkey]

Jason put mtronic on a 660, the vids I've seen don't pop. ??????????????????

 

[Stump Shot]

So the "M" in M-tronic doesn't stand for "Maxxed Out"?
Would only be interesting to know, as a what not to do, but then again, there's probably not much one would want to emulate from this mans work.

 

[Redbull661]

So the "M" in M-tronic doesn't stand for "Maxxed Out"?
Would only be interesting to know, as a what not to do, but then again, there's probably not much one would want to emulate from this mans work.

only if your paying hotsaws101 $400 500 600 or 1000 depending on your level of porting: zipkit-max, insano-max, psycho-max, SS (super sized) psycho maximus!