268xp Experts

[Northerner]

I recently acquired what I believe is a 268xp, at least that’s what kind of plastic the saw has.
Serial tag gone. I’ve read there’s a few different variations, plus could be a 266?
Going through the whole saw since the bearings were pooched. Here’s some pics.

 

[Northerner]

Might answer my own question
Found a couple of 266 or 61 cylinders in my pile. Definitely bigger transfers on the 268.

 

[Huskybill]

There was plain 268’s and 268 Xp’s? You have some big transfer ports.

 

[Northerner]

Bottom pic is the 268.

 

[Northerner]

Mag rot...run it?

 

[Huskybill]

You could wire brush the loose stuff.

In castiron 4 stroke crankcases I put GE glyptol electric motor paint. It seals in the sand from casting and the oil flows faster over it. But I never tried it in two strokes yet. Another option is to epoxy over it.

 

[Northerner]

Or dip into my supply of 61,266se,266xp,266G cases. Hhhmmm, 266 sleeper?

 

[Huskybill]

It pays to have extra parts. My only problem is I buy a parts saw and the dam thing runs after a few fixes.

 

[huskihl]

266 and 268 were the same bore. 50mm. 266se had a full skirt windowed piston. 268 was open port. 268xp had a slab sided windowed piston like yours.
I’d scrub up the mag rot maybe with a burr and smear some epoxy over it. Or leave it.

 

[Huskybill]

What causes the mag rot?

These were good saws in there day even today. I never lost a day of work due to a husky saw not running.

 

[huskihl]

What causes the mag rot?

Condensation usually from sitting on a concrete floor

 

[Cantdog]

Yep...definitely a 268XP cyl…...in the middle pic of the first set you can see where the outside of the transfer port was machined off on the flywheel side to allow for the flywheel to spin through......266Xp didn't have this as the transfers were smaller....inside and out.....670 Jonsereds were the machined same as the 268XP just with a different impulse and intake.

 

[Northerner]

So I decided to just reuse the crankcase, it’s not in that great cosmetic shape so just gonna be a low budget saw.
Turns out I buggered the flywheel when I removed it, most difficult flywheel I’ve removed ever.
no problem I thought, I’ve got more.Grab one with same part # but look at it closely, its timed different. Checked another one, same thing.
In the pic the left is 268xp, right is 266.
didn’t expect this.

 

[Cantdog]

So I decided to just reuse the crankcase, it’s not in that great cosmetic shape so just gonna be a low budget saw.
Turns out I buggered the flywheel when I removed it, most difficult flywheel I’ve removed ever.
no problem I thought, I’ve got more.Grab one with same part # but look at it closely, its timed different. Checked another one, same thing.
In the pic the left is 268xp, right is 266.
didn’t expect this.
View attachment 807847

Yep........the 268XP is the single coil ign....the 266 is the older two piece ign. There actually three flywheels for the family... the latest has a cast in key and a different taper if I recall correctly.

 

[Northerner]

Kinda expected it had to do with the 2 piece design. Of course most of my spares r that style or the moulded in 1.
This project is officially on hold until I get my hands on a flywheel. And i refuse to pay flebay prices so it could be awhile....

 

[huskihl]

Get ahold of @bplust either here or on o p. E. He probably has what you need at respectable prices

 

[Cantdog]

Get ahold of @bplust either here or on o p. E. He probably has what you need at respectable prices

Yep Brian's a g'boy…..

 

[Ronie]

So I decided to just reuse the crankcase, it’s not in that great cosmetic shape so just gonna be a low budget saw.
Turns out I buggered the flywheel when I removed it, most difficult flywheel I’ve removed ever.
no problem I thought, I’ve got more.Grab one with same part # but look at it closely, its timed different. Checked another one, same thing.
In the pic the left is 268xp, right is 266.
didn’t expect this.
View attachment 807847

I put the wrong flywheel on this saw.

 

[Tinman204]

50ZN14 is the correct cylinder number for a 268xp.

 

[pioneerguy600]

The keyway can be re broached in the correct location, been done plenty of times if another flywheel cannot be found.