Stroking a Dolmar 7900

[mettee]

She seems to really like it. You don't have to say but how far did you take it.

ETA: I'm not that experienced in saws, but I'd say if you are at 80, it seems like it wants more intake. Just my guess.

And maybe a second exhaust port?

 

[Fruecrue]

She seems to really like it. You don't have to say but how far did you take it.

ETA: I'm not that experienced in saws, but I'd say if you are at 80, it seems like it wants more intake. Just my guess.

And maybe a second exhaust port?

It was at 78, I pushed a ring in the bore until it was just past flush with the bottom of the port and traced it. Ground to the line. That makes it about 1mm. So.... maybe 80-81? Didn’t put the wheel on it.
2nd port? You mean the muffler? There ain much left of that muffler right now.

 

[mettee]

Hahahaha hahaha awesome dude!

I'm guessing you have it pretty rich too to be safe.

 

[redline4]

So what's the latest on the crappy chain frozen wood stroker device?

Space beavers didnt abscond with it did they?

 

[Deets066]

Every time this thread pops up I keep thinking we’re gunna see a vid of him taking the bar cover on and off....

At a medium pace.

 

[Fruecrue]

Every time this thread pops up I keep thinking we’re gunna see a vid of him taking the bar cover on and off....

At a medium pace.

Pretend I’m the pizza delivery guy and....

 

[Deets066]

Pretend I’m the pizza delivery guy and....

 

[Fruecrue]

So what's the latest on the crappy chain frozen wood stroker device?

Space beavers didnt abscond with it did they?

Not much happening there, space beavers haven’t made it this far east yet.
I’d like to get a few more tanks threw it so I tamed the muffler a bit with a removeable front cover. Was a crushed mess when I got it, not much better now Lol.

 

[huskyboy]

How’s the non stroker rescue saw compare to this one?

 

[Fruecrue]

How’s the non stroker rescue saw compare to this one?

Slower for sure but still has stock ignition coil with no advance and only a couple cuts run time.

 

[huskyboy]

Slower for sure but still has stock ignition coil with no advance and only a couple cuts run time.

Does the stroker have noticeably more torque too?

 

[huskihl]

Not much happening there, space beavers haven’t made it this far east yet.
I’d like to get a few more tanks threw it so I tamed the muffler a bit with a removeable front cover. Was a crushed mess when I got it, not much better now Lol.
View attachment 167765 View attachment 167766

I had a girlfriend once that needed duct tape over her mouth too.

 

[huskihl]

I had a girlfriend once that needed duct tape over her mouth too.

"STFU when you're talking to me"


LMAO

 

[RI Chevy]

[emoji15]

 

[Fruecrue]

Does the stroker have noticeably more torque too?

I don’t have enough run time on the firesaw and I’ve not run anything less than an 8 pin on the stroker so can’t make a comparison at the moment.

 

[Fruecrue]

I need to play with timing and maybe a carb swap to see if there’s more to get.

 

[Fruecrue]

Had a little bit of fun with the stroker muffler today.

 

[Deets066]

Had a little bit of fun with the stroker muffler today.
View attachment 171551 View attachment 171552

That’s hilarious

 

[tickbitintn]

Just a bit late for Halloween, or really early preparation for next year.

Does remind of some peeps I've seen around here in TN though.


Sent from my XT1635-01 using Tapatalk

 

[Fruecrue]

Just a bit late for Halloween, or really early preparation for next year.

Does remind of some peeps I've seen around here in TN though.


Sent from my XT1635-01 using Tapatalk

I thought it looked a lot like Minion.