Saw video thread

[stihl_head1982]

A brave man … not many porters will play with the Asian stuff!

True dat. The blue ox -- running fairly well.

 

[Nutball]

It seems to me that the plating they use is too thin to flake, so good and bad.

 

[Maintenance Chief]

A local brought them to me and asked if I would go over them and I hate to say it but the quality of the cylinder and piston has really gone up. The port heights were within 0.005" of OEM, shape was ok, plating doesn't show any signs of flaking when grinding, the alloy seems to machine a little easier than OEM as it galls up less on the carbide (I don't know if that's good).

The carb needs a little cleaning up in the venturi and I think the needle taper is too shallow which makes them pretty unresponsive, 1/4 turn to make any difference and they have to be ~2 turns out. The fuel tank die part line is pretty sharp and the trigger is a block that cuts into your finger, and the front handle is skinny and feels flimsy. This is all stuff that people can easily straighten out but it is an annoyance.

I also found that none of them have the o-ring behind the oil gear bushing and this one had the PTO side seal smoked because it wasn't installed deep enough such that the washer was riding on it. The bearings seemed decent, even the piston pin bearing was of better quality and a more modern (less scalloped) design. We'll see how long it all lasts in it's pure AM form.

I only touch these with the understanding that they are as is no warranty!

2 months ago 4 of us did the 4 for 1 deal and I got the g372xp .
Basically all of the issues that you pointed to are present in the saw I purchased. The fuel pump side screw on my carburetor was stripped out from the carburetor body through, as the screw itself was not long enough, I put a factory Zama screw in which holds fine. It still has a little weirdness to it though so I have more investigating to do . The OEM handle is definitely better.
Interestingly enough the other 3 saws were the stihl clones of various types and they had none of the tuning issues and seem to have a more consistent idle.

 

[srcarr52]

2 months ago 4 of us did the 4 for 1 deal and I got the g372xp .
Basically all of the issues that you pointed to are present in the saw I purchased. The fuel pump side screw on my carburetor was stripped out from the carburetor body through, as the screw itself was not long enough, I put a factory Zama screw in which holds fine. It still has a little weirdness to it though so I have more investigating to do . The OEM handle is definitely better.
Interestingly enough the other 3 saws were the stihl clones of various types and they had none of the tuning issues and seem to have a more consistent idle.

I've done one of the G660's too, it didn't really have any problems. The port timing on the cylinder was that of an early 066 decomp cylinder so porting it was very easy.

 

[MustangMike]

In the past, all but one of the MS 660 clones I did had good working carbs (one needed a fuel lever adjustment), but virtually all of the MS 440 clones had carbs with so many problems I just started replacing them.

Were any of the saws MS 440s, which would indicate the carb problem with them has been resolved?

 

[srcarr52]

I've been messing with race saws. I should have warmed up the pipe before this run but it still did ok.

 

[RI Chevy]

Nice. Runs real good.

 

[srcarr52]

Nice. Runs real good.

Except for the fudgin recoil... but I have that fixed now.

 

[MustangMike]

Did you post vids of the Asian 660?

 

[Deets066]

I've been messing with race saws. I should have warmed up the pipe before this run but it still did ok.

What’s the cocktail?

 

[srcarr52]

What’s the cocktail?

It's got a little go go juice.

 

[Maintenance Chief]

In the past, all but one of the MS 660 clones I did had good working carbs (one needed a fuel lever adjustment), but virtually all of the MS 440 clones had carbs with so many problems I just started replacing them.

Were any of the saws MS 440s, which would indicate the carb problem with them has been resolved?

No, a g660, 255(ms250) and a g366 (ms361).
I was gonna get a 440 but I wanted the husqvarna just for a rub on my Husqvarna buddy's, it being blue now just adds insult to injury

 

[spencerpaving]

I've been messing with race saws. I should have warmed up the pipe before this run but it still did ok.

Looked damn good but it sounded it was starving a little for fuel...

 

[srcarr52]

Looked damn good but it sounded it was starving a little for fuel...

Maybe, I'm new to the whole funny fuel buisness.

 

[spencerpaving]

It takes quite a bit to get them to pump a lot of fuel.... But the rewards are so fun

 

[huskyboy]

 

[Brewz]

A Pair of MS660 VS racecsaws.
Saw on left is one I did.
Saw on right other Aussie builder.
Same bar and chain, same log etc.

Super happy with how it came up!

 

[Brewz]

I've been messing with race saws. I should have warmed up the pipe before this run but it still did ok.

That saw will be a cracker once it’s running at full tilt. Definitely starving for fuel
Get the drills out

 

[Time's Standing Stihl]

That saw will be a cracker once it’s running at full tilt. Definitely starving for fuel
Get the drills out

Do you guys run any kind of alky? Or all pump/ race gas down there?

 

[Nutball]

No, a g660, 255(ms250) and a g366 (ms361).
I was gonna get a 440 but I wanted the husqvarna just for a rub on my Husqvarna buddy's, it being blue now just adds insult to injury

I wonder how well the 250 engine fit together? Every FT 250 engine I've seen doesn't have deep enough bearing and seal pockets, so there's something like a 1mm gap to have to seal. I just don't like how all that pressure will be on the bearings and seals, o I figure grind out the pockets to fit better.