Jonsered 90

[grossm]

So folks, here's the question: How big of a bar can a Jred 90 pull?

I am mostly cutting oak, 30" dbh. Today I had the saw out and it pulled a 24" bar just fine...I think it has a Total "super bar" with a calton half skip, 3/8" chain. It ran kinda slow, but the operating rpm is supposed to be 8500 rpm.

It kinda seems to be doing better than my ms361...which i guess makes sense...

Another problem is that the Jred keeps loosing its chain. I have checked everything, and everything seems to be in order, except I am not entirely sure of the plate orientation in the clutch housing. Also, every now and then I can see sparks on the sprocket end of the bar...wtf?

thanks guys

 

[timberrat]

bar length

36" bar max
32" bar ideal
opcorn:

 

[SawTroll]

36" bar max
32" bar ideal
opcorn:

I guess that is close to the truth - look at the Husky 288xp specs......

....the 90 is much older (about 16 years), lower reving, but more torque at low rpms......:hmm3grin2orange: :hmm3grin2orange:

 

[grossm]

yeah, but the acres site says largest supplied bar was a 23"? it feels like it can pull bigger though. I wonder what would happen if I used a full chisel on a smaller bar...?

 

[SawTroll]

yeah, but the acres site says largest supplied bar was a 23"? it feels like it can pull bigger though. I wonder what would happen if I used a full chisel on a smaller bar...?

Mikes site is very good to have, but there are lots of mistakes and misprints there............