Chainsaw Repair

The HD2 air filter is great......I do wish they would have used the air injection that they used on the 441 on this saw though.



Looks like a 460 here huh?

Now, we start getting to mods. First thing I do is defeat the carb limiters.



The tool I'm using here is just an old #1 Phillips screwdriver with a drywall screw brazed to the end of it.





Trimming the tab off....



Reinstalling the limiter caps. It's easier to "find" the adjustment screws with the saw running with these in place.

I'm removing .020 from the edge of the key.

Let me back up just for a second. Here's a shot of the flywheel key.



See how the area I cut is on the right side? That will make the flywheel rotate counter-clockwise further than it was from the factory. I've found that by taking .020 from the key that I get around 6° advance.

Now here I'm holding the flywheel against the rope I'm using as a stop, then I tighten the flywheel nut as tight as I can while holding it like this.



After it's snugged up to hold the flywheel in place, I rotate the engine to catch the stop in a way that allows me to finish tightening the flywheel.