McCulloch PRO MAC 610 - Features and Specifications; Service Specifications

FEATURES and SPECIFICATIONS
FEATURES
1.
Wrap-around CHAIN BRAKE lever/Handguard
2. Safety Trigger
3.
Chain Catcher
4.
Throttle Latch (Fast idle)
5. Large-volume, Low-tone muffler with shield
6.
Anti-vibration design
7.
Electronic Ignition
8.
Boot Loop for starting
9. D.S.P. (PM 650 only) (Compression Release)
10.
Metric Design
11.
Good Balance
12.
Easy to service
SERVICE SPECIFICATIONS
Displacement: 60cc (3.7 cu. in.)
Bore & Stroke:
47mm x 35mm (1.9 x 1.5 in.)
Spark Plug:
AC CS 45T/CH RDJ6
Spark Plug Gap:
63mm (.025 in.)
Fuel Tank Capacity:
510cc (17.3 oz.)
Oil Tank Capacity: 430cc (14.6 oz.)
Intake System: 3rd port, piston timed
Clutch Engagement Speed:
2800 to 3000 R.P.M.
Lamination Gap:
.30 to .40mm (.011 to .015 in.)
Ignition:
Capacitive discharge (C.D.I.)
Timing:
26° BTDC
Main Bearings: Needle & Ball
Connecting Rod Bearings: Needle
Sprocket Type: Floating rim. 7 tooth. .375 pitch
Weight PM 610 P.U.O.: 6.65 kg (14.7 lbs.)
Weight PM 650 P.U.O.:
6.70 kg (14.8 lbs.)
IMPORTANT TORQUE VALUES
Connecting Rod Screws: 65 to 70 lb. x in.
(7.3 to 7.9 N.m.)
Clutch Nut: 160 to 170 lb. x in.
(18.1 to 19.2 N.m.)
Flywheel Nut:
265 to 325 lb. x in.
(29.9 to 36.7 NJU.)