tree monkey 661 turning 15k?!?!?

[paragonbuilder]

I don't recall anyone showing interest in the port or ignition timing.

True, but many have ported different ways, and tried different advances and yet still have the issue. Most saws can be made to scream if leaned out, if they have unlimited coil. Yet this one eludes for most.


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[dieselfitter]

the system can and will feed more fuel to the engine then it can burn. that's been tested

Do you still have the stock mtron carb harness with solenoid attached to the 4701?

yes

out of curiosity, what are you guys using for spark plugs?

why give all your secrets and have it copycatted

Agreed. Scott works on saws for a living and slugs it out on his own instead of copying the work of others.
It seems possible that if the solenoid circuit is maintained, the coil will not limit rpm. If so, a resister could instead be spliced into the harness. If I understand correctly, in stock form, it is programed to dump fuel to limit rpm. Maybe as a secondary strategy, the coil will limit rpm if the solenoid circuit is open. It would be interesting to see a list of M-tronic diagnostic codes. One could better gain understanding the capabilities and limitations of the ignition/fuel system. Scott did a nice thread on the system, I can't find it now.
Not sure if/how the spark plug figures into things.

 

[Chainsaw Jim]

True, but many have ported different ways, and tried different advances and yet still have the issue. Most saws can be made to scream if leaned out, if they have unlimited coil. Yet this one eludes for most.


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Yes it is very true many have ported it different ways. Is that no longer possible because all bases were covered?

 

[mdavlee]

It takes some bending to make it work.

Some wouldn't slide I to the carb linkage. The Tilly was fine. The WJ 76 I had wouldn't.

 

[paragonbuilder]

Yes it is very true many have ported it different ways. Is that no longer possible because all bases were covered?

It is possible. I just find it hard to believe no one else can cross 13.5 if it is truly 100% unlimited.
Scott eluded to some paremeters that must be taken into account...


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[paragonbuilder]

Agreed. Scott works on saws for a living and slugs it out on his own instead of copying the work of others.
It seems possible that if the solenoid circuit is maintained, the coil will not limit rpm. If so, a resister could instead be spliced into the harness. If I understand correctly, in stock form, it is programed to dump fuel to limit rpm. Maybe as a secondary strategy, the coil will limit rpm if the solenoid circuit is open. It would be interesting to see a list of M-tronic diagnostic codes. One could better gain understanding the capabilities and limitations of the ignition/fuel system. Scott did a nice thread on the system, I can't find it now.
Not sure if/how the spark plug figures into things.

Solenoid is still plugged in so it should not see an open...


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[Manofstihl066]

Anybody watching the masters? Leaderboard is getting tight.

 

[paragonbuilder]

Anybody watching the masters? Leaderboard is getting tight.

Too busy trying to figure out mtronic limiting...


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[dall]

golf is a pussy sport

 

[Manofstihl066]

golf is a pussy sport

I hear ya big man.

 

[Manofstihl066]

Sometimes kicking back watching golf and having a beer can slow down the brain. Helps me figure things out sometimes.

 

[dall]

id be asleep watching or playing it because it is boring to me

 

[jmssaws]

Some wouldn't slide I to the carb linkage. The Tilly was fine. The WJ 76 I had wouldn't.

Ive had to open the linkage up some to make the throttle rod fit on all the ones I've tried

 

[Redfin]

Here ya go Dan. 180* opposite magnet sets.

 

[dall]

same type set up on the 261 i sent dan pics of

 

[jk14]

Can we all agree that Scott is the man?



A WooT WooT is in order here.

Agree!!

 

[T.Roller]

I'd say Scott put many many hours into these saws to find the rpms , and if he can do it than others can too if you go at it with an open mind. Being close minded will keep you inside the limitations you have set.

 

[Deets066]

I'd say Scott put many many hours into these saws to find the rpms , and if he can do it than others can too if you go at it with an open mind. Being close minded will keep you inside the limitations you have set.

Is that a Chinese proverb?

 

[T.Roller]

Is that a Chinese proverb?

It sure is lol

 

[Keith Gandy]

Here ya go Dan. 180* opposite magnet sets.View attachment 64942

Why 2 sets of poles?