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Woods ported my 660.

Absolution

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I grabbed some of my porting tools from my Shop but I forgot grab my right angle head. So I was unable to do my transfers. The saw was running 13,500 before now its running 13,800 on same carb settings. I'm going to turn it back to 13ish.

Also I attached a a picture of the piston when I took jug off. And the spark plug was after, it looks a little dry.
 

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Absolution

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So is this a blue g660 thing with a hyway popup. Cylinder is ? Farmatec / hyway.

No timing # yet.
Any other mods
timing adv ?
Do you know what main jet is in the carb.. .67 or .74

Any more info is gooder ;):D

Btw good work on the cylinder so far....:)


Nope, no timing numbers. no timing advance.
Carb that came with saw good question on the jets.


.020 squish
dual port muffler gutted with spark arresters
farmertec jug hyway piston.
oem wrist pin clips and bearing.

I'm waiting for a bolt then going to time and then move it maybe add some fingers.
 

Absolution

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Also for those who were trying to use airtools that can't go down to low rpms. I tried these in a electric flex shaft. And turned up the speed. I don't think I'll ever go back to a standard carbide bit.
 

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MG porting

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I grabbed some of my porting tools from my Shop but I forgot grab my right angle head. So I was unable to do my transfers. The saw was running 13,500 before now its running 13,800 on same carb settings. I'm going to turn it back to 13ish.

Also I attached a a picture of the piston when I took jug off. And the spark plug was after, it looks a little dry.
You really didn't need to open the mouth of the intake like you did but never the less nice port work make sure that when you widen the intake port at the cylinder area that you don't go to wide or the bottom ring will snag do to how close the ring end is located.
 

Absolution

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You really didn't need to open the mouth of the intake like you did but never the less nice port work make sure that when you widen the intake port at the cylinder area that you don't go to wide or the bottom ring will snag do to how close the ring end is located.


Very good point, I haven't had a chance time to take it apart today I've been running a 80 foot boom since 6am. But maybe Sunday I'll rip into it and look.
 

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MG porting

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Very good point, I haven't had a chance time to take it apart today I've been running a 80 foot boom since 6am. But maybe Sunday I'll rip into it and look.
Very nice
 

Absolution

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Long story short. PRO MAC 6 didn't want to start, got pissed grabbed the 660 off work bench 2nd pull saw started. (reason I love the damn thing)

I was cutting down live oak today that was just starting to die it was probably only 18" ( Then again down here that seems to be the norm). I didn't want it to fall on it's own and crush the driveway.

Onto the 660 performance

I didn't mess with the carb at all Saw has a lot faster throttle response which was surprising since I didn't mess with transfers. The saw also seemed to have more grunt on the high end which was much better than before. I cant wait to get the timing wheel on it and see what the numbers are.
 

Deets066

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Long story short. PRO MAC 6 didn't want to start, got pissed grabbed the 660 off work bench 2nd pull saw started. (reason I love the damn thing)

I was cutting down live oak today that was just starting to die it was probably only 18" ( Then again down here that seems to be the norm). I didn't want it to fall on it's own and crush the driveway.

Onto the 660 performance

I didn't mess with the carb at all Saw has a lot faster throttle response which was surprising since I didn't mess with transfers. The saw also seemed to have more grunt on the high end which was much better than before. I cant wait to get the timing wheel on it and see what the numbers are.
Did you have the base of the jug machined? I see you are running a pop up. If you dropped the jug and cut a pop up, your exhaust is most likely high and intake Probly low. This will result in fast throttle response and a saw that will like rpm.
Tune it to 14.2 and report back
 

Moparmyway

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Did you have the base of the jug machined? I see you are running a pop up. If you dropped the jug and cut a pop up, your exhaust is most likely high and intake Probly low. This will result in fast throttle response and a saw that will like rpm.
Tune it to 14.2 and report back
Pop-up definitely wasn't spun on that piston in the picture

Popup_LI.jpg
 
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