HELP! 462 won’t rev up

[Stump Shot]

I don’t think so. It’s computer code *s-word I believe. Had a 572 that would start and idle like it was in the choke position on at3. Pull the throttle and it would not rev up at all, could hear the air being sucked through the carburetor, but no change in TPMs. Put a new coil on it and it ran fine

Maybe someday, someone would come up with a relatively simple to use diagnostic tool to check these type of things out, like in the automotive repair industry for example.

 

[huskihl]

Maybe someday, someone would come up with a relatively simple to use diagnostic tool to check these type of things out, like in the automotive repair industry for example.

There’s a guy in the Facebook groups looking for a MDG1 to try and reverse engineer it. Seems stupid that it’s not available to the public anyway. I guess breaking a law that isn’t enforced isn’t breaking the law

 

[pbillyi69]

this is why cpu chips shouldnt on a fuggin saw in the first place. they only serve to keep authorized repair shops being they only way to update firmware and diagnose issues

 

[Lions fan]

this is why cpu chips shouldnt on a fuggin saw in the first place. they only serve to keep authorized repair shops being they only way to update firmware and diagnose issues

Nothing to worry about, plenty of options out there if you don't like m-tronic saws.

 

[Coupe]

If you have a vacuum tester pull the tank filter out and take it off and plug a vacuum tester on
and see if it will hold pressure and if not check fuel lines and give that carb a really good clean and a new kit.
If that does not solve the problem you may have to give the coil a check to make sure it is not breaking
down.

 

[furb]

If you have a vacuum tester pull the tank filter out and take it off and plug a vacuum tester on
and see if it will hold pressure and if not check fuel lines and give that carb a really good clean and a new kit.
If that does not solve the problem you may have to give the coil a check to make sure it is not breaking
down.

Leave it hooked to the carb and pull vacuum?