Service Specifications
SPARKPLUG GAP. . . . . . . . . . . . .025inch (.63asn)
LA141NATIONGO . . . . . . . . . . . . .011 to .015 inch (.28
TIMING . . . . . . . . . . . . . . ..26 BTDC
CLUTCH ENGAGEMENT SPEED . . . . . . . 2800 to 3000 RPM
IDLE SPEED. . . . . . . . . . . . .. 1800t02000RPM
FUEL TYPE. . . . . . . . . . . . . . Regular Grade Leaded
FUEL/OIL MIXTURE: . . . . . . . . . . 40:1 w/McCulloch Oil
20:1 SAE Two Cycle
FUEL TANK CAPACITY: : : : ~ : ~ : ~ : 17.3 ounces (51OCC)
DISPLACEMENT. . . . . . . . . . . . . 60CC (3.7 cu. in.)
BORE and STROKE . . . . . . . . . . . 4.71mnx 35mn (1.9 in.
WEIGHT: PM610 . . . . . . . . . . . . 14.7 pounds (6.65kg)
PM650 . . . . . . . . . . . . 14.8 pounds (6.70kg
Torque Values
CONNECTING ROO SCREWS . . . . . . . . 65% 70 pound x inches
(7.3to 7.9 N.m)
CLUTCH NUT. . . . . . . . . . . . . . 160 tO 170 pound x inches
(18.1 to 19.2 N.m.)
FLYWHEEL NUT. . . . . . . . . . . . . 265 to 325 pound x in
McCulloch Chainsaw Illustrated Parts List 215036-R3-E
Pro MAC 610
Pro MAC 650
General Assembly
213169 Nut - HEX Flange 3
; CHAIN BRAKE ASY. (FIGURE 5)
3 64325 P1ate - Bar Protector 1
4 Chain Assembly
Bar Assembly
: 95671 Screw - Brake Ann 1
91989B Ann - 8rake ktuator 1
: 93721 Channel - Brake Ann 1
9 93746 Stud - Brake
10 92457 Nut - Hex Flange MIOx 1.25 ;
11 Z14301 Clutch Assembly
12 64583 . Retainer - Clutch Shoe ;
13 83223 . Spring - Clutch 2
14 67233 . Kit - Clutch Shoe 1
15 214300 Rotor - Clutch 1
16 214200 @ 6rum/Spkt. Assembly (Spur) 1
17 86958 Washer - Shim 1
16 95165 @ Drum/Spkt. Assembly (Spur) 1
17 86958 @ . Washer - Shim 1
18 86344 @ . Sprocket - 7T .375P 1
16 95166 @ Drum/Spkt. Asy. - 7T .375P 1
17 86958 @ . Washer - Shim 1
18 86145 @ . Sprocket - 7T .375P 1
19 215720 Bearing - Needle 1
20 92354 Jacket - Cylinder
21 120081 Screw - Pan HdM4 x 16 (SEFIS)~
22 219159 Starter Assembly
23 95353 . Kit - Starter Housing :
24 111038 . . Nut -1/4-20 1
25 95401 Washer - Starter
26 216589 : : Spacer - Starter ;
27 215848 . . Step Bolt - Starter 1
28 216758 . Drum Assembly - Starter
29 87670 . . Rope - Starter ;
30 2~7730 . . Bushing - Rope 1
31 87680 Spring - Starter Rewind 1
32 93137 ~tarter Handle
33 214699 Insert Handle ;
34 120002 Screw - Pan Hd M5x 14
35 93232 Screw - Fan Housing (M5 x 40) ;
36 93233 Screw - Fan Housing (M5x 35) 1
37 93234 Screw - Fan Housing (M5 x 30) 1
38 Fan Housing & Fuel Tank Asy.
(Figure 6)
39 217651 Cover Asy. - Air Cleaner 1
40 91991 . Knob - Air Cleaner Cover 1
$1 110565 Ring - Retaining 1
42 95215 kit - Air Box 1
43 214226 . Filter”- Air 1
44 120004 Screw - HxHdM5x56
45
2
91938 Bracket Asy. - Air Cleaner
94482 Choke & Rod Kit ;
46 94151 Choke Carburetor 1
47 94171 : Rod - Choke 1
-w. . . . -.
ITEM PART UNITS PER
NO. NUMBER DESCRIPTION ASY.
93261 Gronunet - Choke 1
% Carburetor Asys. (Fig. 2,3,4)
50 91924 Gasket - Carburetor 1
51 91995A Grotmnet- Carburetor Needle 1
52 93458 Clip - Oiler Button 1
53 92067A Button/Rod Assembly - Oiler 1
54 105614 “O” Ring 1
215266 Screw - Pan M5 Special
: 110990 Washer :
93252A Strut - Handle
:: 93253 Grommet - Strut ;
59 111015 Screw - Pan Head l/4-14x 2.5 2
60 92071 Spacer 1
61 92066 cup - Isolator 2
62 92065 @ Isolator 1
63 102115 Washer - Plain 1
64 111014 screw - Pan Hd 1/4-14 x 1.75 1
65 92071 Spacer 1
66 111027 Washer - Plain
93913 @ Isolator :
:; 94847 @ Isolator 2
68 94140 @ Isolator 1
69 111027 Washer - Plain
70 91951 Frame ;
71 94255 Handle/Boot Assembly 1
110994 . Pin - Roll 2
% 93771 . Spring - Trigger 1
74 93538A Trigger 1
75 111013 : screw - set 1
91955 Release - Trigger
;; 214504 : Rod - Throttle ;
78 93459 Boot - Handle 1
69597 ioot - Control Rod
::
1
92161 Seal - Air Box
81 120037 Screw - iix Hd M5 X 25 (SEMS) i
82 120039 screw - tix Hd M5x 30 (SEMS) 2
83 93460 Washer - Insulator 1
84 94018 Gasket - Air Box 1
85 94017A Insulator - Carburetor 1
91933 Gasket - Air Box 1
;! 91934 Insulator - air Box
88 92038 Gasket - Insulator ;
89 120037 Screw - Hx Hd M5x 25 (SEMS) 2
93460 Washer - Insulator 1
;; 104810 Nut - Iix 15/32-32
92004 Shroud - Cylinder I
% 93890 Switch - Ignition 1
94 92466 Wire Assembly - Switch 1
95 120002 Screw - Pan Hd M5x 14 4
96 214670 Shroud - Bottom 1
Powerhead & Oiler Asys. (Fig. 4)
:: 120002 @ Screw - Pan lidM5 x 14 4
99 120044 @ Nut - Hx M5 Lock 2
100 93668 @ Spike 2
Carburetor Assembly
93739 * Carburetor - Tillotson
1 94797
2- -Q:
3 94798 @ .
4 94700 0 .
5 94789 .
6 94788
94787 @ :
i--a
9 94793 .
10 94792
11-- @:
12 94794 @ .
HK 19A (PM 610)
Needle - Hi Speed + Idle
Spring - Needle Adjustment
Screw - Idle Speed
Spring - Idle Speed Screw
Screw - Diaphragm Cover
Cover - Diaphragm
Oiaphragm
Gasket - Diaphragm
Screw - Pump Cover
Cover - Fuel Pump
Gasket - Fuel Pump
Diaphragm - Fuel Pump
94796 . Screen - Fuel Strainer
1: - -~ . Pin - Inlet Lever I
15 94800 @ . Lever - Inlet
16-- Spring - Inlet ;
17 94802 : Needle- Inlet 1
21--
22 94807 @ :
:: 9481; - :
25 94810 .
26 94808
27 94809 @ :
18-- - Module 1
19 - -@&:2- Module Metering 1
20 94786 . Ring - Retaining 1
Screen - Body Channel 1
Screw - Throttle Lever Ret. 1
Lever - Throttle 1
Screw-Throttle Shutter Ret. 1
Shutter - Throttle 1
Shaft Assembly - Throttle 1
Spring-Throttle Shaft Ret. 1
95763A * Carburetor - Walbro HDB -6A
(PM 610)
95631 Carburetor - Walbro HDB-7A
(PM 650)
1- - 0 . Needle - Hi Speeds Idle
2- - 0 . ::~;g--l~gdle Adjustment ~
; ~ ~ : Spring - Idle Adjustment
Gok:or AsY. (HDB-7A Only) ;
: :: : - Metering Cover 4
- Metering Diaphragm 1
:= @@~ ~~~ragm AsY. - Metering 1
-@@. Gasket - Metering Diaphragm 1
1::- Screw - Circuit Plate 1
11 - -a: Plate Assembly - Circuit 1
12 - -@@. Gasket -Circuit Plate
13
14
15
;!
18
19
20
21
22
23
24
25
26
-(D@.
-@@.
- @@.
-@@.
-0.
-- .
-- .
--
-@2:
-- 8
12.8 -- 1 @.
-- .
-- -.
--
27--
28 - -@:
Valve - Inlet Needle
Spring - Metering Lever
Ring - Screen Retaining
% reen - Check Valve
Retainer - Check Valve
Valve - Check
Screw - Fuel Pump Cover
Cover - Fuel Pump
Gasket - Fuel Pump
Diaphragm - Fuel Pump
Screen - Inlet
% rew - Valve
stop - Throttle
Valve - Throttle
Shaft Assembly - Throttle
Spring Throttle Return
%;~;l * CaQrb:tor AsY. (Zama C-2S)
1 - Pump Cover 1
2 214954 : Cover - Pump 1
3 214953 @ . Kit - Pump Diaphragm 1
4 91820 @ . Screen - Filter 1
- 0 . Screw - Adjustment 2
:: - @ . S#;;g - Adjustment Screw 2
- Throttle Adjustment 1
: :: : Piece - Friction 1
9 93945 . Screw - Diaphragm Cover 4
10 214945 Cap 1
11 - -Q: Diaphragm - Main
12 a. Gasket - Main ;
13-- 0. Disk 1
14 8
91814 1 .
15 93942 I .
16 - -a.
17 - -0.
18 - -Q.
19 93951
20 - -a:
21---
22---
;;:::
25---
26---
Screw Pin Lever 1
Pin - Atm 1
Arm - Needle Valve 1
Spring - Arm
Valve - Needle I
Plug - Welsh 1
Orifice - Main Fuel 1
Screw - Plate 1
Valve - Throttle 1
Screw 1
Lever - Throttle Adjustment 1
Shaft Assembly - Throttle 1
Spring - Throttle Return 1
CHAIN BRAKE Assembly
217007
92086
; 216693
92216
: 217000
5 214367
6 93082
7 120019
CHAIN BRAKE Assembly
Snubber - Brake Housing
: screw - Pivot
. Washer - Special
. Lever - Brake Actuator
Pin - Assembly Roller
: Pin - Band Anchor
. screw - HxHdM5x13
92134
92135
94144
94150
93081
-216317
120002
92178
. Retainer - Spring
. Spring - Actuating
. Pivot - Latch
. Latch Brake
. Band - Brake
Housing - Brake
Lrew - Pan Hd M5 x 14
stOD - Chain
Fan housing & Fuel Tank Assemblies
?16154 Housing Fan
216157 Cap - Fuel (vented)
94707 Gasket - Fuel cap
!23?51 Lal - Fuel Vent
97161 Seal - Air Box
120068 Screw - Pan hd 144x
94901 @Fuel Tank Assembly
94899 . Hose Assembly - Fuel 1
100440 . . Washer - 5/16
63932 Filter - Fuel
91994 @~o;e - Fuel
215714@) Pickup Assembly - Fuel
$~Nl~j o~;~~ - Fuel Pickup
- Name (PM61O)
95185 Plate - Name (PM650)
95196 Plate - Name, French
95194 PIate - Name, French
PM61O) ;
PM 650) 1
Powerhead & Oiler Assemblies
1 120036 Screw - Pan Hd M4 x 25 (SEMS) 4
2 67177 Washer - Insulating 4
3 217208 pump Assembly - Pulse Oiler 1
4 -215151 . Cap - Oil Pump 1
93933 . P1unger - Oi1 Pump 1
: 105614 “O” Ring 1
7 66687 : Spring - Plunger 1
8 110706 . Screw - Pan Hd 8-18 x .50 3
216354 Gasket Washer
1: 217218 : Cover - Diaphragm ;
11 216992 Diaphragm - Oiler
12 217217 : Valve - Oi1er ;
13 91945 Piston Assembly - Pulse 1
14 94322 : Spring - Return
15 91944 . S1eeve - Oi1 Pump ;
16 120092 - Pan Hd M3.5 x 22 1
17 216991
; :c_
Assembly - Oi1 Pump 1
18 91950 Gasket - Oi1 Pump 1
19 216052 Cap Assembly - Oi1 1
20 101148 “O” Ring 1
21 120006 Screw - k lidM6.3 X 24 4
22 100004 Washer - P1ain 4
23 218583 Tank Assembly - Oi1 1
24 110950 Nut - Lock 1
25 102115 : Washer - Plain 1
26 91982 Nut - Bar Adjustment 1
27 94362 : screw - Bar Adjustment
28 92459 . Bolt - Bar ;
29 92616 Hose - Oil Pickup
30 92465 Pickup - Oil :
31 120037 Screw - Hx M5 X 25 (SEMS) 2
32 84686A Wire Assembly 1
33 95553 Ignition Assembly-Electronic 1
34 95270 . Mire Assembly - Spark PIug 1
35 102556 . . Connector - Spark Plug ;
36 95266 Boot - Spark Plug
37 110995 “ &omnet - Spark Plug Wire 1
38 94500 iut - Hx Flange M1O 1
39 216739 @ Flywheel/Pawl Assembly 1
40 93144 Spring - Starter Pawl 2
41 95362 : Screw - Starter,Pawl
42 95361 . Pawl - Starter ;
- ----- . .---. -—--- -.
ITEM PART UNITS PER
IO. NIBIBER DESCRIPTION ASY.
43 213253 Washer - Spring
93144 @ ;pring - Starter Pawl :
:; 93145 @ Pawl - Starter 2
46 93146 @ Pin - Starter Pawl 2
47 100106 Key - Woodruff 1
48 62106 Screw - Wsh Hd 12-24 X 1-3/4 4
49 111025 Uasher - Sealing
50 94304 Cyl/C’Case Assembly (PM 610) ?
51 92096 Nipple - Oil Line
50 94536 ~yl/C’Case Assembly (PM 610) ;
92096 Nipple - Oil Line 1
?2 87710 bin - Piston 1
53 94130 Piston Assembly 1
54 111021 Bearing - Needle 2
55 94132 : Ring Set - Piston 1
56 85352 Rod Assembly Connecting
61627A Screw - Connecting Rod ;
;: 63225 Iioller- Needle (Set of 20) 1
110260 Seal - Oil .6251D x .875 1
% 104357 Bearing - Needle 1
61 67906 hal - Oil 1
67905 Bearing Ball 1
:: 63464 Ring - Snap 1
64 217041 Crankshaft
65 102762@ Screw - tix Hd 10-24 X 1/2 ;
66 95439 @ Deflector Assembly - Exhaust 1
67 120038 Screw -Pan M4x8 2
68 216627 @ sC1’eW - Pan 6-32 x .25 Tap 2
69 93482 @ Cover - Muffler Chamber 1
70 93605 @ Screen - Muffler 1
71 93897 @ Screw - Muffler 1
72 -216254 @ Chamber Assembly - Muffler
93604 @ Outlet - Muffler :
;: 93481 @ Plate - Deflector 1
75 214205@@Screen - Muffler 1
76 92458 Screw - Muffler 1
77 93603 Body/Cover Assembly -Muffler 1
78 84007 Gasket - Muffler 1
79 93017 @ Spark Plug - CH - ROJ6H 1
80 214304 @ Valve - DSP 1
81 214765 @ Washer - Valve 1
Tools & Accessories
215432 Pressure Test Tool 94962 Scrench 95159 Allen Wrench - 5mm
63137 Adaptor - Exhaust 214195 Gun - Lube (Disposable) 69794 Locquic
94415 Adaptor - Intake 214194 Gun - Lube (Deluxe) 110083 R.T.V. Sealant
110761 P1Ug - D.S.P. 85702 Lubricant - Custom, 6 oz. 94121 Kit - Carrying Case, 20”
501334 Ignition Tester Can 214203 . Scabbard, 20”
84223 Kit - Piston Tools 85703 Lubricant - Custom, 6 oz. 94367 Kit - Carrying Case, 16”
501222 Piston Stop Tool Cans, 1 6-pak 92896 . Scabbard, 16”
95218 Air Filter - Felt 214208 Kit - Spike
BAR and CHAIN COMBINATIONS
214237
94074
89502
218061N
89974N
88167N
217025
21B062N
214238
93778
89503
89978N
89979N
Bar - 16” Sprocket Tip
Bar - 16” Speed Mac
Bar - 16” WC 10
Chain - 16” PMR370G
Chain - 16” SPR 370G
Chain - 16” PM 370G
Bar - 18” Sprocket Tip
Chain - 18’ PMR 370G
Bar - 20” Sprocket Tip
Bar - 20” Speed Mac
Bar - 20” Mac 10
Chain 20” SPR 370G
Chain - 20” SPR 370G
88173N Chain - 20” PM 370G
86846 8ar - 24” Speed Mac
89504 8ar - 24” Mac 10
88175N Chain - 24” PM 370G
89981N Chain - 24” SPR 370G
93551N Chain - 24” PM 370G
89982N Chain - 24” SPR 370G
86847 Bar - 28” Speed Mac
89505 Bar - 28”Mac 10
89984N Chain - 28” SPR 370G
93552N Chain -28” PM 370G
899B5N Chain - 28” SPR 370G