Stihl Kombi strimmer question.

[Peter 1955]

I use my Kombis as strimmers and brushcutters quite a lot. Blades are no problem, I've got favourite types which do what I want perfectly. It's the line I have questions with. I realise that here we're in a balancing act between indestructible line and engine power/gearbox strength. Apologies for being about to quote lots of numbers. 

I currently use 2.4mm line ( I like Nylium best of all ) in Autocut 25-2 heads. Can I simply enlarge a couple of holes in the inner mounting to accept 2.7 line, will this work OK? ( On occasion, I think I've used thicker line, and shaved the ends of the line ). 

Alternatively, would either Autocut 30-2, or 36-2 fit onto my Kombis? Or does anyone have better suggestions than my ideas? Only stipulation is that it must fit Kombis, I'm really not looking at buying even a cheap unit which normally uses thicker line. ( We once borrowed a couple of whacking great Stihls for a paddock clearance, and could barely keep the buggers in fuel)! Thanks folks. 

[SteveW1000]

According to the catalogue the 25-2 will accept 2.7 line.  I've just put a Autocut C26-2 on one of my KM131s and I'll be trying 2.7 line in it as soon as the first load in gone.  Agree about the big Stihls I've four and they do drink.

[Peter 1955]

7 hours ago, SteveW1000 said:

According to the catalogue the 25-2 will accept 2.7 line.  I've just put a Autocut C26-2 on one of my KM131s and I'll be trying 2.7 line in it as soon as the first load in gone.  Agree about the big Stihls I've four and they do drink.

I couldn't find that information anywhere, must not have been looking in the right place. Might just order some 2.7 and try it, nothing to lose, thanks. 

[Husqvarna King]

11 hours ago, Peter 1955 said:

I couldn't find that information anywhere, must not have been looking in the right place. Might just order some 2.7 and try it, nothing to lose, thanks. 

I use 3mm square or star line, just whittle an edge off to get in the holes on the standard head. If you're cutting fine grass the thinner is better but I find 3mm the best all round

[Peter 1955]

1 hour ago, Husqvarna King said:

I use 3mm square or star line, just whittle an edge off to get in the holes on the standard head. If you're cutting fine grass the thinner is better but I find 3mm the best all round

I'm going to try 2.7 first, I think. That should let me know whether 3mm is an option. Thanks.