Chain snaps

[billpierce]

Might be remembering wrong but thought rob d told me that stihl do not make a lopro sprocket for 660 it's a GB rim sprocket required

[westphalian]

yep, i think it may be the sprocket.

what to do?

ditch the lo pro or get a suitable sprocket.

i have 4 lo pro chains

[billpierce]

yep, i think it may be the sprocket.
what to do?
ditch the lo pro or get a suitable sprocket.
i have 4 lo pro chains

I'd get on the phone to chainsawbars and sure they can sort you out with a sprocket. Cheaper than new bar and chains anyways

[Wonky]

Yeh, gb do a lopro sprocket 

 

i found, what I was saying about earlier,

 

3/8's lopro takes a larger drive sprocket than regular 3/8. So I cut down a .404 8 pin to make it work for 3/8 lopro. I can look up the measurements later. 
For the sprocket tip you need to file the sides of the sprocket so they spear into the lopro chassis correctly

[westphalian]

yep. Rob D. i'm on the phone mane

[westphalian]

mane is latin for morning btw ?

[Stubby]

10 hours ago, westphalian said:

mane is latin for morning btw ?

I knew that !

[Wonky]

Well, I!m glad we’ve sort of got to the root(sprocket) of problem, ??  

[Rob D]

13 hours ago, westphalian said:

yep. Rob D. i'm on the phone mane

If you just want the GB lo pro rim use the postage reducer tool or PM me after order and I'll refund the postage.

[westphalian]

having bought a Sugihara Pro Solid 20″ 3/8 bar with Stihl Ripping 3/8 .063 chain i just returned to my original Lo pro set up. ok it might snap from time to time but it cuts like a hot knife thru butter. quicker in the long run just repairing the links 3 or 4 times a year