372xpw g... :)

[Mattyo]

I'm pretty sure this can use more intake. The 52mm am one I worked over ended up at 102 122 82 with the popup and was very strong.

 

[RIDE-RED 350r]

OK Matt, I might be confusing the way intake timing is measured... When rotating the crankshaft in the direction of normal operation from BDC, the intake begins to crack open at 75 deg after BDC... Is this correct or am I doing it wrong?? If I am correct, 75 deg would be earlier and more duration than 82?

 

[XP_Slinger]

OK Matt, I might be confusing the way intake timing is measured... When rotating the crankshaft in the direction of normal operation from BDC, the intake begins to crack open at 75 deg after BDC... Is this correct or am I doing it wrong?? If I am correct, 75 deg would be earlier and more duration than 82?

Intake is stated as BTDC not ABDC. For instance, say your intake opens @290° ATDC. 360° - 290° = 70° BTDC. Make sense Joe?

 

[Mattyo]

 

[Mattyo]

Ended up at 101 122 82. Got a little overzealous on the intake. .019 squish.

Hopefully have it together next couple of days

 

[mdavlee]

If he's going to cut the base you don't want to drop the intake much more.

 

[Mattyo]

case is already decked.... i do the port work after I establish squish.

 

[paragonbuilder]

Grinding looks nice Matt!


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[mdavlee]

case is already decked.... i do the port work after I establish squish.

I was talking about the other guy. I figured you cut some off already.

 

[Mattyo]

gotcha

I don't know if I will get to bring this to the gtg... its for a tree guy that may need it

 

[Mattyo]

 

[Mattyo]

The heated handles work

 

[XP_Slinger]

Nice work! Soooooo how much do you charge for this mod

 

[paragonbuilder]

Pretty cool Matt!


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[Mattyo]

This saw ...as it sits is $750. it is already sold. ported, decked, muff modded, lots of new parts, 32" GB bar and full comp chain. heated handles added, no carb element in the circuit. couldn't believe it, the heated handles do work.

 

[Mattyo]

This saw siezed in 10 minutes.

Pressure test is good with new piston...but I have a new issue.... after 1 tank...bar oil refilled....bar oil is coffee with milk brown. Opaque....ish. wtf????

Can there be a leak from the crankcase into the oil reservoir??

 

[paragonbuilder]

This saw siezed in 10 minutes.

Pressure test is good with new piston...but I have a new issue.... after 1 tank...bar oil refilled....bar oil is coffee with milk brown. Opaque....ish. wtf????

Can there be a leak from the crankcase into the oil reservoir??

That's weird Matt! If so it should not pass pressure and vac test though????

 

[Mattyo]

Right...pressure and vac are good

 

[paragonbuilder]

I've never seen bar oil and gas/mix mixed...


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[mdavlee]

It's getting pressure from somewhere