MS460WOODCHUCK
Addicted to ArboristSite
What is the differences in these saws?
7900 and 7910
- Thread starter MS460WOODCHUCK
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bryanr2
Addicted to ArboristSite
cat muffler/ downed power for the 7910. I do like the matte black top covers though.
Great Smokies
ArboristSite Operative
SLR muffler, moved decomp, matte top cover. Same cc, rated .6 hp lower. I've heard it said that the difference is minimal, not at all what the numbers suggest.
DanTheCanadian
Weekend Warrior
The SLR muffler, limited coil are biggest differences.
166
Addicted to ArboristSite
New cylinder for SLR Exhaust
Light Weight Piston
New Crank / Coil / Flywheel 12,800 RPM
New Carb
Flat Black Hoods
RH Deco Valve
SLR muffler does not have a catalyst
Everybody that we have sold a 7910 to that has/had a 7900 has had no complaints except the saw is a little louder.
Light Weight Piston
New Crank / Coil / Flywheel 12,800 RPM
New Carb
Flat Black Hoods
RH Deco Valve
SLR muffler does not have a catalyst
Everybody that we have sold a 7910 to that has/had a 7900 has had no complaints except the saw is a little louder.
Termite
Time To Launch
Gosh I hate to ask but,"SLR"?
DanTheCanadian
Weekend Warrior
It looks like this, I pulled mine for fun because I have issues with stock equipment. I don't know about decreased economy but I'll tell you that power gain is really noticible and the saw is quieter.
tallguys
Addicted to ArboristSite
So after 1 1/2 years, are you still happy with the muffler mod results? Any issues come up with ripping out the SLR contraption or is it all good?
RiverRat2
Serio Tree Freak
I like me 7900, a lot, never run a 7910 SLR version yet!!!
10 
MillerModSaws
USE2COULDBESPONSER!
DanTheCanadian
Weekend Warrior
Its all good! Im very happy I decided to do it and I would still recommend it. I was talking with a Dolmar sales rep about it a little while ago and at first he was a little pissed. Naturally, I told him to blow it out his a**.
After a while though of explaining exactly my thought process and the gains that I received, we both decided that maybe the SLR idea could be a good one, it was just poorly executed on this saw.
Time will tell if doing this will effect the life of my saw or not. All I know is this saw went from a real turd and I was I was gonna trade to my favorite saw.
7sleeper
Addicted to ArboristSite
Exactly in this point I disagree! Actually, the way I see it, it was excelently executed! With absolute minor changes to a existing design, a much more environment friendly version was released. And this is, at least for me, technically impressive if you think about that the top two players(Stihl & Husqvarna) have exclusive access to patents rights of the strato design! And they are definately NOT going to share this access...
7
MillerModSaws
USE2COULDBESPONSER!
I agree with this as a torch,a screwdriver,a pair of pliers, and an hour and you have a normal non epa saw back. And it looses .8 lbs by just taking that out.
DanTheCanadian
Weekend Warrior
The sales rep told me that the SLR design could not be patented exclusively to dolmar. He said it'd be like patenting a cat muffler. It doesn't work.
I agree @MillerModSaws. Couldn't have said it any better.
I agree @MillerModSaws. Couldn't have said it any better.
166
Addicted to ArboristSite
A SLR muffler from a 7910 only weighs 1.0 pounds. The 7900 muffler weighs 0.8 pounds.
166
Addicted to ArboristSite
DanTheCanadian
Weekend Warrior
Ok you win i admit defeat. I never did the research myself. 
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