Stihl 070

[Rough Hewn]

Been offered an old 070,

Looks ok, but I suspect it will need new pot n piston, carb kit, lines and pipes filters etc

I can buy a new 070 in the Philippines for about £8-900.

New parts for the saw are about £5-600

He's a decent bloke who offered it to me, so I'd like to offer a fair price.

Honestly I'm thinking £100.

What do you guys think the value is?

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[spudulike]

On ebay they go for stupid money, seen them go for a few hundred but got one a couple of years ago for someone else for around £200 - it needed a top end!

As you say, it is likely to need a raft of spares to make it good so offer what is fair and perhaps, if it is better than expected and you don't need to buy loads of spares, divert some £££ to the previous owner or buy him something you know he may like.......

[Rough Hewn]

Thanks Spud,
I was thinking....
Send it to you...
How big a top end could you put on it? 150-160cc?
Could you port it?
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[spudulike]

I have done 075/076 and an old Contra in the past, not too bad to work on and cant say they are an area where I have much knowledge although I own two vintage McCullochs

I did service the carb and fuel lines on the 070 and got it running.

I don't know much about the 070 - 090 hop up but believe it is possible.

I usually say, vintage machines need to be serviced by their owners, there is usually 30 years of maintenance to do on them!

[Rough Hewn]

[spudulike]

That doesn't look too bad to me, Id give £100 for it all day. Pop the muffler off and take a look at the piston, if it is clean and if you are really lucky, machining marks then it is a good buy at anything under £200.

Check the tanks and alloy parts for cracks. Worth putting fuel in both tanks to see if they leak.

[Rough Hewn]

I know stihl made five 070/090's with 156cc engines, ported with big a big exhaust.
Could it be done again?
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A new oem top end for an 090 is £380 on eBay.
Or is there another option?

[spudulike]

Yes it could but no idea where you would get a big bore kit for one but am sure someone has one in a shed somewhere. The big exhaust is a bit specialist, the expansion will need to be designed for the engine. 

[Toad]

Huztl do a 090 top end that would go on it, if you're happy with fitting one of them? They sell a 070 parts kit too.

[Rough Hewn]

Yes it could but no idea where you would get a big bore kit for one but am sure someone has one in a shed somewhere. The big exhaust is a bit specialist, the expansion will need to be designed for the engine. 

Not worried about the exhaust, as it will be going on a mill.
It's the extra torque and rpm I'm after.
Do stihl sell a big bore kit?
Or more likely something non oem?