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064, 066 MS650, MS660 info thread

Definitive Dave

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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, POLYMER

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 [92.12ipl] and generator 3500 [95.01ipl]

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

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


Trigger Units

No number shown - 064 September 1987 to mar 3rd 1991 [92.12ipl]


Important notes:


** - these items are widely available as good quality aftermarket components


1994 –

066 after X 29 588 002 new crankshaft with better bearing and cage

064/066 after X 31 067 164 new EY-V coil and unlimited flywheel


1995 -

066 Magnum USA model only OSHA noise reduction changes from # X 31 980 509.

066 first decompression valve # X 32 231 689.

064/066 after # X 31 815 798 crankcases have 4 mounting holes for brake cover instead of 3.


1996 -

066 after # X 33 917 066 all of the following - larger big end bearing, longer crankshaft with different ignition taper and larger threads, new crankcase, lightweight poly flywheel 1122-400-1217, new unlimited coil 0000 400 1303,


1997 –

064/066 after X 33 459 523 first plastic name badge

064/066 after x 35 661 524 new style tank valve/tank housing

064/066 after X 36 262 047 new oil-less HD air filter

064/066 after X 38 139 451 another new tank vent


1998 –

066 after X 39 176 186 EPA certified, limiter caps on WJ-69 carb, new cylinder timing,

Smaller exhaust openings


2002-

MS660 introduced


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Brewz

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Great thread

I have been trying to work out the age of my 066 and this helps a bit

It has the Polly fly wheel and plastic badge.

I am trying to make some sense of the serial numbers you have listed

My serial number is 154094480

Does anyone know what the serials on the 066's got up to before they moved on to the MS660?
 
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Stihlbro

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