Stihl 051 or 075,need some help Identifying

[SilverKing]

recently bought an 051 or possibly 075,any distinguishing differences?

 

[Dan_IN_MN]

From this website:

http://www.acresinternet.com/cscc.n...OpenView&Start=124.80&Count=30&Expand=124#124

Here's the 075

 

[SilverKing]

let me post a pic of mine,maybe you guys can tell me

 

[sefh3]

Most of the parts are interchangeable between these 2. The manual oiler is the biggest difference.

 

[SilverKing]

my saw has adjustable auto oiler,so I guess its 051?Still working on pics,but thanks guys

 

[sefh3]

If you look at the front of the 075 pictures you will see the manual oilier both have adjustable auto oilier.

 

[sefh3]

To the right of the oilier cap.

 

[SilverKing]

ok thanks,mine has no manual over ride oiler

 

[sefh3]

More than likely an 051 then. The best way is to measure the bore. You need to tear the whole saw down to get the muffler off. You can take a straw and stick it threw the exhaust port and have the piston squeeze the straw and measure the bore. Still post pics if you can.

 

[bullseye13]

the cylinder of the 051 is held on by screws, 075/076 is held on by full length studs. No need to measure anything, just shine a flashlight sideways under the rear handle toward where the cylinder meets the crankcase itself.

 

[harrygrey382]

or see where the decomp or decomp plug is - there are two holes next to the spark plug in the casing, the 075/076 cylinder has it in a different hole to the 051. But I forget which so you'll have to study some photos or look it up!

 

[SawTroll]

There are of course a lot of "frankensaws" out there, so different clues may point in different directions.....

 

[sefh3]

the cylinder of the 051 is held on by screws, 075/076 is held on by full length studs. No need to measure anything, just shine a flashlight sideways under the rear handle toward where the cylinder meets the crankcase itself.

Unless someone broke the bolts and used screws. My 076 had 3 screws and 1 bolt holding the cylinder on

 

[harrygrey382]

There are of course a lot of "frankensaws" out there, so different clues may point in different directions.....

Unless someone broke the bolts and used screws. My 076 had 3 screws and 1 bolt holding the cylinder on

Both true, that's why I mention the decomp port method - it is the only 100% reliable easy to spot detail that tells you without question whether it's 111cc or 89cc

 

[sefh3]

I think pics would really help us here.

 

[SilverKing]

Thanks again for all the replies.Im workin on pics but its giving me a fit.Anyhow,I bought this saw from a buddy.It threw the clutch off and went completely through the cover,leaving a perfect circle cut out of the cover .(also caused some pretty bad injury to his leg).I have 2 more questions about this saw also.First off it appears the decompression valve was either replaced with a bolt or plug.This saw Im sure came factory with decomp valve?Also it has 404 chain,is this recommended?Thanks again.These are the only pics I can load,says the rest are too large .I will try later

 

[SawTroll]

Both true, that's why I mention the decomp port method - it is the only 100% reliable easy to spot detail that tells you without question whether it's 111cc or 89cc

Sure, but it still could be a frankensaw.

 

[sefh3]

Can you post a picture of the saw looking down the rear handle towards the spark plug. That will tell us just about everything.

 

[sefh3]

You can download to photobucket and resize your pictures so they will fit.

 

[SilverKing]

maybe this will help