THis virus is about to turn me into a hermit.....

[jltrent]

I always kinda wanted to be one..... been working on a couple projects today.

Got 2 MS260 pro saws torn down............ with parts, paint will be nice runners again before long. Anybody else got a hobby to kill time while in seclusion?

Here is another that everybody needs one of.......with a full length bar and full of fluid probably go close to 50 lbs. It is a cutting beast...

 

[Dave]

If I remember right the power head of an 075 weighed about 38 pounds empty. Put on a 36 or 42 inch bar and it held a quart of gas plus bar oil and it was heavy. I don't know what it weighed all filled and and ready to go, but I do know I was in a whole lot better shape back in those days. I ran the guts out of 6 or 8 of those 075 Stihls in the late 70's / early 80's.

 

[Dave]

If I remember right the power head of an 075 weighed about 38 pounds empty. Put on a 36 or 42 inch bar and it held a quart of gas plus bar oil and it was heavy. I don't know what it weighed all filled and and ready to go, but I do know I was in a whole lot better shape back in those days. I ran the guts out of 6 or 8 of those 075 Stihls in the late 70's / early 80's.

 

[jltrent]

I saw the weight of those saws somewhere and those 075 and 090 s were some of the heavies saws made that were not two man. THose older saws were torque monstors as I bet it was a hoot running except for the weight.

 

[Aaron]

I put my back out just looking at that 880. Not 18 years old anymore and full of stupid - got it down to 1/2 level.

 

[Dave]

For 20 years it seemed like I was working on a saw every night. I can certainly fix them but it sure isn't my favorite thing to do.
I don't remember it being much fun running those big saw. It was a lot of hard work. Even when saws got lighter it was still a lot of work. But they did pay me really really well. So you picked up the saw, ignored the weather, and ran. Trouble is I spent half that money on wine, women, and song and I just wasted the other half.

 

[Buck Randall]

For 20 years it seemed like I was working on a saw every night. I can certainly fix them but it sure isn't my favorite thing to do.
I don't remember it being much fun running those big saw. It was a lot of hard work. Even when saws got lighter it was still a lot of work. But they did pay me really really well. So you picked up the saw, ignored the weather, and ran. Trouble is I spent half that money on wine, women, and song and I just wasted the other half.

:clap:

Sounds like a life well-lived to me.

 

[Redgully]

Stihl is my preferred machine and i have two. I also have a husqvarna 395xp, that is one heavy saw but gee it has some power. Can be a pig to start at times and even with a decompression mechanism can wear you out pretty quick. I found with these saws if you have trouble just whack a new carby on, fixes them nearly every time and cheaper than carby kits.

I have many vintage engines to work on, my problem is I'm still working flat out.

 

[jltrent]

A new carb or carb kit will fix a lot.

 

[Nesikep]

Stihl is my preferred machine and i have two. I also have a husqvarna 395xp, that is one heavy saw but gee it has some power. Can be a pig to start at times and even with a decompression mechanism can wear you out pretty quick. I found with these saws if you have trouble just whack a new carby on, fixes them nearly every time and cheaper than carby kits.

I have many vintage engines to work on, my problem is I'm still working flat out.

I'd like to get a 395, I have a couple 394's and they're my go-to big saw, mine start well.
I have an 064 with an 066 top end, quite well ported, 100cc and 215 PSI compression, if it doesn't feel like starting, it's not starting!.. at first it didn't have a decomp, but I had to put one on.. no matter how hard you held that starter rope or with what anger you pulled on it, it was getting ripped out of your hands.. runs awesome once you got it going though!
https://youtu.be/KGqaitWLAFw

 

[Dave]

Winter of '79 I was working on Afognak Island in Alaska. A below zero morning and an old Mac 125 wouldn't start. About destroyed my hand jerking the starter rope out of it. I got mad, tossed the saw down and kicked it. Then I hopped around on one foot because it felt like I broke my toe. I can't tell you how much I hate a hard starting saw. It is bad enough for a grown man to have to pull a starter rope to make a living. The dang thing had better start or I am replacing it.

 

[jltrent]

Here is a couple of 064 powerheads. Upgraded to 066 coils, flywheels and recoils as the 064 coil has been discontinued and only AM available. Both these had the OEM extra hole in the flywheel side crankcase that could be upgraded. I had 2 more and sold that did not have this option. These are probably around 30 years old and still considred by many weight to power the strongest saw made. THey have 046 weight and almost 066 power.

 

[jltrent]

Probably a bore to many as I could post all day, but here is one of the first Stihl 066 powerhead flat tops made as it was the Red Eye edition. The Red Eye still works. I have the flat square air filter, carb backing cover and filter cover that came on it, but added the upgrade that is on for better air flow.

 

[jltrent]

These 064, 066 powerheads are hard to match up flywheels to coils as they made many combos. Mate the wrong two together and it will not start or run right. Match a certain combo together and pulling the recoil, once it fires will take your arm out by the root. Don't ask me how I learned that.

Here is a guide that is a big help...

Stihl Series 1122 Ignition Systems V2.0 07.28.15
064 1986-1997 066 1988-2003 MS660 2004-2014 MS650 2005-2012
Earliest illustrated parts list noted where known.


Flywheels – aluminum with single keyway unless noted.

1122 400 1201A – 064 for use with Bosch ignition, unlimited coils
1122 400 1202 – 066W, MS660 unlimited, new thicker style for heated handle and carb generator, POLY
1122 400 1203 - 064, 064R for use with limited coils 1303 [92.12ipl] (gap of .2 to .3mm)
1122 400 1203 (double keyway) - 064, 064R for use with limited or unlimited coils
Keyway X or B is furthest clockwise for unlimited coils
Keyway P is furthest counterclockwise for limited coils
1122 400 1203/1204 - marked with both but only one keyway, normally limited
1122 400 1204 – 064 – limited with retarded start timing (a’ la Mastermind’s pic)
1122 400 1204 (single keyway) – 064 for use with limited coils ONLY
1122 400 1204 (double keyway) – 064
Keyway X or B is furthest clockwise for unlimited coils
Keyway P is furthest counterclockwise for limited coils
1122 400 1206 – 064 unlimited for use with Bosch ignition and generator 3500 [87.1ipl]
1122 400 1207 - 064W limited for use with 1303 and generator 4000 or 3500
1122 400 1209 – 066 for limited coils
1122 400 1209/1214 - 066 marked with both numbers but only one keyway
1122 400 1209/1214 – 066 double keyway
Keyway X or B is furthest clockwise for unlimited coils
Keyway P is furthest counterclockwise for limited coils
1122 400 1210 – 066 for limited coils with generator
1122 400 1214 - 066, 066M unlimited with larger big end bearing from early 1995 [95.01ipl] **
1122 400 1215 – 066 redeye
1122 400 1216 - 066W unlimited for generator with larger big end bearing early 1995 [95.01ipl]
1122 400 1217P – 066 unlimited Polymer pre 1996
1122 400 1217 – MS650, MS660 (same as 1217p maybe)
1122 400 1218 – 066W unlimited Polymer thin style for heated handle generator

Generators for heated handles

1118 400 4000 – 064W [92.12ipl]
1122 400 3500 – 064W [87.1ipl], 066W [95.01ipl]
1122 400 3501 – 066W, MS660
1122 400 3502 – 066W, MS660 (circa 1999) two windings for carb and handle heat

Ignition Coils

0000 400 1300 – 066 Lida standard unlimited “short” mount **
0000 400 1303 – 066 2nd Lida EY-V unlimited
0000 400 1305 – 066 Lida Standard unlimited
1122 400 1300 – 064, MS640 unlimited, Bosch E1-V “dogleg” mount [87.1ipl]
1122 400 1303 – 064 Prufex CDIC limited (12,000 RPM) Prufex [92.12ipl]
1122 400 1307 – 066 CDIC-A limited (13,500 RPM) including 066 red eye model
1122 400 1311 – 064/066 original Lida EY-V unlimited, easier starting, short life span [95.01ipl], installed starting X 31 067 164 on 064 and 066
1122 400 1312 - 066 poly flywheel three screw mount
1122 400 1314 – 066, MS650, MS660 Lida standard unlimited two screw mount

 

[Nesikep]

These 064, 066 powerheads are hard to match up flywheels to coils as they made many combos. Mate the wrong two together and it will not start or run right. Match a certain combo together and pulling the recoil, once it fires will take your arm out by the root. Don't ask me how I learned that.

Here is a guide that is a big help...

Stihl Series 1122 Ignition Systems V2.0 07.28.15
064 1986-1997 066 1988-2003 MS660 2004-2014 MS650 2005-2012
Earliest illustrated parts list noted where known.


Flywheels – aluminum with single keyway unless noted.

1122 400 1201A – 064 for use with Bosch ignition, unlimited coils
1122 400 1202 – 066W, MS660 unlimited, new thicker style for heated handle and carb generator, POLY
1122 400 1203 - 064, 064R for use with limited coils 1303 [92.12ipl] (gap of .2 to .3mm)
1122 400 1203 (double keyway) - 064, 064R for use with limited or unlimited coils
Keyway X or B is furthest clockwise for unlimited coils
Keyway P is furthest counterclockwise for limited coils
1122 400 1203/1204 - marked with both but only one keyway, normally limited
1122 400 1204 – 064 – limited with retarded start timing (a’ la Mastermind’s pic)
1122 400 1204 (single keyway) – 064 for use with limited coils ONLY
1122 400 1204 (double keyway) – 064
Keyway X or B is furthest clockwise for unlimited coils
Keyway P is furthest counterclockwise for limited coils
1122 400 1206 – 064 unlimited for use with Bosch ignition and generator 3500 [87.1ipl]
1122 400 1207 - 064W limited for use with 1303 and generator 4000 or 3500
1122 400 1209 – 066 for limited coils
1122 400 1209/1214 - 066 marked with both numbers but only one keyway
1122 400 1209/1214 – 066 double keyway
Keyway X or B is furthest clockwise for unlimited coils
Keyway P is furthest counterclockwise for limited coils
1122 400 1210 – 066 for limited coils with generator
1122 400 1214 - 066, 066M unlimited with larger big end bearing from early 1995 [95.01ipl] **
1122 400 1215 – 066 redeye
1122 400 1216 - 066W unlimited for generator with larger big end bearing early 1995 [95.01ipl]
1122 400 1217P – 066 unlimited Polymer pre 1996
1122 400 1217 – MS650, MS660 (same as 1217p maybe)
1122 400 1218 – 066W unlimited Polymer thin style for heated handle generator

Generators for heated handles

1118 400 4000 – 064W [92.12ipl]
1122 400 3500 – 064W [87.1ipl], 066W [95.01ipl]
1122 400 3501 – 066W, MS660
1122 400 3502 – 066W, MS660 (circa 1999) two windings for carb and handle heat

Ignition Coils

0000 400 1300 – 066 Lida standard unlimited “short” mount **
0000 400 1303 – 066 2nd Lida EY-V unlimited
0000 400 1305 – 066 Lida Standard unlimited
1122 400 1300 – 064, MS640 unlimited, Bosch E1-V “dogleg” mount [87.1ipl]
1122 400 1303 – 064 Prufex CDIC limited (12,000 RPM) Prufex [92.12ipl]
1122 400 1307 – 066 CDIC-A limited (13,500 RPM) including 066 red eye model
1122 400 1311 – 064/066 original Lida EY-V unlimited, easier starting, short life span [95.01ipl], installed starting X 31 067 164 on 064 and 066
1122 400 1312 - 066 poly flywheel three screw mount
1122 400 1314 – 066, MS650, MS660 Lida standard unlimited two screw mount

I see Randy (Mastermind) mentioned.. I've had some good conversations with him!

 

[Dave]

I still have the 066 that was in my hands when a top came out of a snag and broke my back. That was 27 years ago this coming August. It gets used every year to cut firewood. Like me it has gained weight in the last 27 years. Or so it seems, because I don't remember it being this heavy back then. But it sure does cut.

 

[jltrent]

I see Randy (Mastermind) mentioned.. I've had some good conversations with him!

The guy lives a little over a 2 hour drive from me at Jamestown, TN....I have thought about taking him or mailing a MS660 cylinder and him do some machine work on it. He usually only works on new as I very seldom have new so he may not touch it. He has some great videos .....a funny and cool guy...

https://mastermindsaws.com/contact/

https://www.arboristsite.com/community/threads/mastermind-worksaws-shirts.250987/

 

[jltrent]

I still have the 066 that was in my hands when a top came out of a snag and broke my back. That was 27 years ago this coming August. It gets used every year to cut firewood. Like me it has gained weight in the last 27 years. Or so it seems, because I don't remember it being this heavy back then. But it sure does cut.

Cutting those big trees takes nerves and dangerious as I don't believe I could do it. I like tinkering around with small trees, but that is about it. I could work on saws 20 hours a day as most of the time I enjoy that..

 

[Nesikep]

I see Randy (Mastermind) mentioned.. I've had some good conversations with him!

The guy lives a little over a 2 hour drive from me at Jamestown, TN....I have thought about taking him or mailing a MS660 cylinder and him do some machine work on it. He usually only works on new as I very seldom have new so he may not touch it. He has some great videos .....a funny and cool guy...

https://mastermindsaws.com/contact/

https://www.arboristsite.com/community/threads/mastermind-worksaws-shirts.250987/

He's got cattle too

 

[jltrent]

The two saws in the first picture of the OP tore down are refurbished and about ready to go. These are Pro design saws and both have the decomp valve and adjustable oiler. IMO some of the best saws made with no- EPA additions and originally retailed between $500-$600.


This saw had a broke crankshaft as I had one and it is back together and a very nice saw. It still needs a top handle as I have it on order.

Here is the crankshaft broke on the flywheel side

THe is a late model PRO 026 which is the same saw as the MS260 except it has the screw on fuel/oil caps. Not a big fan of the AM plastic I put on as the original OEM plastic looked pretty bad. I have some pretty nice OEM around here if I can find it.
THe saw needed a new bearing on the PTO side as I had one. It also needs new clutch springs as I have them on order. BOth saws had to completely be torn down, split the case and repair.

Here is the bad PTO bearing.