Picked up a 090 today have a few questions

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atvguns

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Not 100% sure if it is a 090 or 070 it does have the 6 shoe clutch. I guess the best thing to do would be just start with the pics and get that out of the way.

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One of the questions I have is what keeps the clutch from spinning freely on the crank? Is the bushing in this Picture suppose to slide off the crank

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Well it seems that I have lost most of the pictures during the upload I had took several more under the cover. This saw was being used for a hot saw years ago that is the reason for no muffler and running it with outthe air box hooked up

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if its 6 shoe clutch id bet it is an 090. Unless someone changed the 070s three shoe clutch for the 6 shoe 090 unlikely but still possible
 
Brad what do you think on the clutch what is suppose to make it tight on this bushing All I have is the one big washer and the nut for the crank the washer bottoms out on a step in the crank before the clutch tightens up
 
I've never heard of just ditching the muffler all together. I suspect it was removed and simply misplaced. Fortunately, they're not hard to come by.
This is hillbilly country anything to make the competition think you have a mean saw:hmm3grin2orange:
 
Finally found a online IPL Here is the parts I am going to need

9636 815 0640 1 Sealing ring 8x12
1106 020 9400 1 Decompression valve
9460 624 0320 2 E-clip 3.2
1106 028 8101 1 Flat spring
9440 069 1270 1 Blind rivet 2.6x6
9121 347 1380 2 Stud M6x35

1106 149 0600 1 Exhaust gasket
1106 140 0502 1 Exhaust muffler (2)
1106 145 2900 1 Cover (2)
1106 148 3900 2 Locking plate (2)

1109 162 8905 1 Washer

1106 162 9000 1 Adapter sleeve
0000 961 1200 1 Ring

1106 664 0510 2 Bumper spike
9008 319 1310 4 Hexagon head screw M6x18 (2)
9214 320 0900 6 Lock nut M6

1106 967 1502 1 Model plate 090
 
-Looks like you have an early model. Red paint, crankshaft locking screw, white throttle trigger, cast Stihl logo on engine shroud etc and the serial number.

-070 vs 090, the muffler is already off so measure the bore! 58mm vs 66mm

-The adapter sleeve (what you called the bushing) gets compressed and expands locking the clutch to the shaft. It is romovable from the shaft. Make sure crank stub, adapter sleeve and inside of clutch are degreased before reinstalling.

-You have the 090 recoil too!

-The model plate you listed isn't the right one. Your saw would have had a decal saying 070 or 090.

:cheers:
 
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-Looks like you have an early model. Red paint, crankshaft locking screw, white throttle trigger, cast Stihl logo on engine shroud etc and the serial number.

-070 vs 090, the muffler is already off so measure the bore! 58mm vs 66mm

-The adapter sleeve (what you called the bushing) gets compressed and expands locking the clutch to the shaft. It is romovable from the shaft. Make sure crank stub, adapter sleeve and inside of clutch are degreased before reinstalling.

-You have the 090 recoil too!

-The model plate you listed isn't the right one. Your saw would have had a decal saying 070 or 090.

:cheers:

I have the same old style top cover(mine's a 070), and can tell you, the plate you listed is not the right one. Still looking for the decal. It is just a plain 070(090for you).

Nice find
 

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