Bar Size for Jonsered 630 Super II

My Uncle just gifted me his Jonsered 630 Super II. He had a 16 inch bar on it and I was wondering if I'd be able to put a 20 inch on it. I have a couple 16 inch saws already (Stihl MS 251) and this one has about 17cc more displacement than those ones do (62cc vs 45cc) so I'm hoping I can put a bigger bar on it and use if for bigger cuts. Anyone got any experience putting a 20 inch bar on this saw and would you recommend it?

 

You can definitely run a 20”. My 56.5cc Husky can with 20 and it had zero issue running that stock.

 

Good to know, thank you!

 

That's an awesome gift I have the Husqvarna rough equivalent (model 61) and I've run up to a 24" on mine. I'm sure the Jonsered is stronger than a Husky 61 too.

 

You can run what it will oil properly which would be up to a 28” I’ve ran full comp 3/8” on my 266XP 24” and 28” 3/8” full comp on my 268XP. I would probably run full skip on 24 or 28 on that saw.

 

I vote 20" for 60cc, not that it matters. 24 at a push. Or you could keep the 16 and throw an 8 pin sprock on there.

 

Thanks for all the replies. Sounds like I'm good to go with a larger bar. I think I'll just go with a 20". Here in the upper plains I rarely run into anything that would require a larger bar than that - mostly I'm cutting mulberry, elm, ash, and hackberry out of fence-lines.

 

Spring for one of those fancy bars like Eric pictured above. They are better than average steel and don’t wear much at all. And they look great.

 

I checked that brand out actually. It was $97 for the bar without a chain. There was a deal on a 20" Oregon chain and bar combo for $40 so I ordered that. I don't deny that the Tsumura looks awesome though... maybe some day.

 

Ya get what ya pay for.

 

Tsumura bars are great for weight reduction on the longer bars, but the difference when running a short 18-20" isn't much. But you'll still get the added benefit of better durability, which is a huge plus. I only have two Tsumuras (24" and a 32") and the rest of my bars are a mix of Windsor, Oregon, Husqvarna, and one Forester.