Tearing down my JMSSAWS, one by one...

[SOS Ridgerider]

WTF?

Seems low, doesn't it?

 

[SOS Ridgerider]

That's the saw I ran in Ct. It ran well but I have no experience with the 9000 or 9010's
to tell any difference. But man that muffler is horrible. His welding-fabrication skills
are at a bare minimum.

I agree. It works, but when you pay to have it done "professionally " it should be a little better than "just working".

 

[SOS Ridgerider]

View attachment 85183

I think he may have put this thing in a vise and tightened it enough to warp it.

I hope that's not the case. Maybe I should have the piston and cylinder looked at together? To make sure they're both actually round?

 

[Chainsaw Jim]

I hope that's not the case. Maybe I should have the piston and cylinder looked at together? To make sure they're both actually round?

I would assume if that were the case it would have the same wear on the exhaust side. It just came to mind at the time so I rambled about it.
You can use a set of internal or regular calipers to check.
Shawn noticed a texture to it, so it's looking like it'll need a little honing with fine grit.

 

[SOS Ridgerider]

I would assume if that were the case it would have the same wear on the exhaust side. It just came to mind at the time so I rambled about it.
You can use a set of internal or regular calipers to check.

I'll check it tomorrow. The intake and exhaust side of the cylinder look about the same.

 

[hseII]

Seems low, doesn't it?

Only About 40psi.

 

[SOS Ridgerider]

Only About 40psi.

It could be my gauge. The 6100 had less than 170 when I just checked it. Those saws are known for their high compression, so maybe that's what's going on.

 

[tree monkey]

The horizontal lines looks like he buffed the cylinder with pretty coarse emery cloth. I don't know why, it shouldn't have had transfer when sent to him.

i'm thinking he scored it, cleaned it up, and put in a new piston. is the piston oem?

 

[SOS Ridgerider]

i'm thinking he scored it, cleaned it up, and put in a new piston. is the piston oem?

Yes, it's oem.

 

[srcarr52]

He told me that too. But not to say anything cuz Shawn would be upset...


Sent from my iPhone using Tapatalk

The only thing to be upset about there is that he wouldn't have shared with me what he did to get more out of it.

 

[dall]

The only thing to be upset about there is that he wouldn't have shared with me what he did to get more out of it.

come on now do you actually think the *f-wordtard knew how to get any power out of a saw and admit anything

 

[drf256]

The only thing to be upset about there is that he wouldn't have shared with me what he did to get more out of it.

Consider yourself lucky. You may have had to unlearn something.

 

[drf256]

Sondre.

The 9010 looks ok.

Porting nice, as usual.

I'm not sure how his saws have so much carbon from so little run time.

 

[CapitaineHaddoc]

come on now do you actually think the *f-wordtard knew how to get any power out of a saw and admit anything

You're wrong. He can build an amazing saw, probably much stronger than any other builder.

It will only last for 3 cuts on a yt video, but three impressive cuts.

 

[RI Chevy]

Maybe he said I can get more out of it, and actually do it.
By taking more oem parts out of it. And putting crap AM parts back into it?
Get it? He can get more parts out of it.

Sent from my SM-G930V using Tapatalk

 

[dall]

Maybe he said I can get more out of it, and actually do it.
By taking more oem parts out of it. And putting crap AM parts back into it?
Get it? He can get more parts out of it.

Sent from my SM-G930V using Tapatalk

exactly used oem parts are worth more than aftermarket maybe he was thinking he could buy more drugs

 

[Simondo]

The muffler looks like crap, and I'll need a new gasket.
View attachment 85255 View attachment 85256 View attachment 85257

2 points...
1..the 9010 muffler can be modded without cutting the thing apart by opening out the baffle holes on the side facing the existing "exit hole"... even easier after you open that hole up plus you can get at many of the 1/4in holes through the gasket hole. Even before you do any mod you can look in from the gasket hole and look out through the 12mm standard exit hole ...they are not that complex /restricting baffle wise.
2..After opening up yours there is the 1/4in hole filled baffle ..STIL.. showing in your pic ! so what was the point in making such a poor attempt if the end result was not a gutted muffler (not needed IMO) .
Just some thoughts for you if you get a new one and want to make changes yourself.

 

[mdavlee]

Sondre.

The 9010 looks ok.

Porting nice, as usual.

I'm not sure how his saws have so much carbon from so little run time.

9010 could use some more compression.

Oil that burns does that. I have carbon in 3 cuts in 8x8 after warm up while I'm tuning.

 

[SOS Ridgerider]

Sondre.

The 9010 looks ok.

Porting nice, as usual.

I'm not sure how his saws have so much carbon from so little run time.

I agree Al. It looks good, other than the muffler.
I'd still like to have the jug checked to make sure it's true, though.
I'm running all my saws at 40:1 on Dolmar full synthetic oil, or Echo Powerblend at the same ratio.

2 points...
1..the 9010 muffler can be modded without cutting the thing apart by opening out the baffle holes on the side facing the existing "exit hole"... even easier after you open that hole up plus you can get at many of the 1/4in holes through the gasket hole. Even before you do any mod you can look in from the gasket hole and look out through the 12mm standard exit hole ...they are not that complex /restricting baffle wise.
2..After opening up yours there is the 1/4in hole filled baffle ..STIL.. showing in your pic ! so what was the point in making such a poor attempt if the end result was not a gutted muffler (not needed IMO) .
Just some thoughts for you if you get a new one and want to make changes yourself.

I agree Simon. It does not look complicated at all. Nothing like the 6100 and 7910 mufflers.
The funny thing is that even after the whole muffler was apart, there is still a lot of the baffle left inside, and a few loose burrs hanging just waiting to fall off.

9010 cpul d use some more compression.

Oil that burns does that. I have carbon in 3 cuts in 8x8 after warm up while I'm tuning.

I'll see if I can't pick up another compression tester after work today. I want to make sure the one I have is actually reading correctly. I checked the 6100 too, and it was only at 170 cold. Those saws are known for high compression even stock. I have a feeling it's the gauge. When starting the 9010 it definitely does not feel low on compression.
Should I, in your opinion, change something about my tune or oil?
I've always felt the tunes I've done have been pretty good, and the saws are good and coated in oil when I've taken them apart.

 

[Simondo]

I agree Al. It looks good, other than the muffler.
I'd still like to have the jug checked to make sure it's true, though.
I'm running all my saws at 40:1 on Dolmar full synthetic oil, or Echo Powerblend at the same ratio.

I agree Simon. It does not look complicated at all. Nothing like the 6100 and 7910 mufflers.
The funny thing is that even after the whole muffler was apart, there is still a lot of the baffle left inside, and a few loose burrs hanging just waiting to fall off.


I'll see if I can't pick up another compression tester after work today. I want to make sure the one I have is actually reading correctly. I checked the 6100 too, and it was only at 170 cold. Those saws are known for high compression even stock. I have a feeling it's the gauge. When starting the 9010 it definitely does not feel low on compression.
Should I, in your opinion, change something about my tune or oil?
I've always felt the tunes I've done have been pretty good, and the saws are good and coated in oil when I've taken them apart.

Logic , amongst other things , did not seem to be in the thought pattern here Sondre ! !