Timing advance on a 10mm 044

[jmssaws]

Depends on the saw,it can be different even with the same model.

 

[leadfarmer]

I just deleted base gasket on my 10mm saw and took third of the key off. I had to cut squish some to get .020 and opened exaust up and it very strong runner

 

[drf256]

That is the funny thing it is reading retarded off stock @ 31.5. So by that I should cut the key even more like .010 or .015.

I gotta say, I'm thoroughly confused by this thread and the numbers mentioned.

What's does "it's retarded @31.5* off stock" mean? 31.5* retarded off stock should mean your firing at 4.5* after TDC.

In this case, shouldn't advancing the timing create a LARGER number?

So if the saw is now at 31.5, it's advanced more than the 27* stock reading. Filing the key will increase the number and advance timing and create a spark that occurs more before TDC than without advance.

I'm probably just reading this wrong.

To the OP, did the coil automatically advance the timing at all from idle to WOT?

My 10mm is a beast with .020 off the key.

 

[MustangMike]

I agree with Al, I believe 27 degrees is the timing ADVANCE and adding 6 degrees brings it to 33. I can not imagine a saw running with timing retard.

Why would you EVER want the plug to fire AFTER TDC??????

 

[leadfarmer]

I agree with Al, I believe 27 degrees is the timing ADVANCE and adding 6 degrees brings it to 33. I can not imagine a saw running with timing retard.

Why would you EVER want the plug to fire AFTER TDC??????

So the hoooskies can keep up [emoji13]

 

[foragefarmer]

I gotta say, I'm thoroughly confused by this thread and the numbers mentioned.

What's does "it's retarded @31.5* off stock" mean? 31.5* retarded off stock should mean your firing at 4.5* after TDC.

In this case, shouldn't advancing the timing create a LARGER number?

So if the saw is now at 31.5, it's advanced more than the 27* stock reading. Filing the key will increase the number and advance timing and create a spark that occurs more before TDC than without advance.

I'm probably just reading this wrong.

To the OP, did the coil automatically advance the timing at all from idle to WOT?

My 10mm is a beast with .020 off the key.

Thanks,

It is all clear to me now.

 

[VinceGU05]

From the service manual.