Homelite 650 chainsaw
And Super 650
Cylinder above off the standard 650 Homelite
When i get access to seeing the inside the Super 650 cylinder i'll add the pics
Super 650
Homelite 750
Cylinder
Homelite 650

HOMELITE CORPORATION 
  PORT CHESTER, NEW YORK, U.S.A.
SERIES OR ASSEMBLY NUMBER:  
YEAR INTRODUCED:  
YEAR DISCONTINUED:  1976
ENGINE DISPLACEMENT:  6.1 cu. in. (100 cc)
NUMBER OF CYLINDERS:  1
CYLINDER BORE:  2.125 in. (54 mm)
PISTON STROKE:  1.720 in. (43.7 mm)
CYLINDER TYPE:  Aluminum with chrome plated bore
INTAKE METHOD:  Piston ported
MANUFACTURER ADVERTISED H.P.:  not advertised
WEIGHT :  
OPERATOR CONFIGURATION:  One Man operation
HANDLEBAR SYSTEM:  Rigid
CHAIN BRAKE:  none
CLUTCH:  Centrifugal
DRIVE TYPE:  Direct
CONSTRUCTION:  Die cast mangesium, some plastic
MAGNETO TYPE:  Electronic, two piece
CARBURETOR:  Walbro WB-2 series
MAJOR REPAIR KIT:  K10-WB
MINOR REPAIR KIT:  D10-WB
AIR FILTER SYSTEM:  Nylon mesh cartridge
STARTER TYPE:  Homelite automatic rewind
OIL PUMP:  Automatic with manual override
OPERATING RPM:  
IGNITION TIMING:  fixed
BREAKER POINT SETTING:  none
FLYWHEEL/COIL AIR GAP:  0.015 in. (0.38 mm)
SPARK PLUG TYPE:  Champion UCJ-4G, or can use CJ4
SPARK PLUG GAP:  0.025 in. (0.63 mm)
CRANKSHAFT MAIN BEARINGS:  Roller
FUEL TANK CAPACITY:  
FUEL OIL RATIO:  32:1 with Homelite oil
RECOMMENDED FUEL OCTANE:  Regular
MIX OIL SPECIFICATION:  Homelite chain saw mix oil
CHAIN PITCH:  3/8 in.
CHAIN TYPE:  Homelite
BAR MOUNT PATTERN:  14 link
SHORTEST GUIDE BAR SUPPLIED:  20 in. (51 cm)
LONGEST GUIDE BAR SUPPLIED:  43 in. (109 cm)
COLOUR SCHEME:  Homelite Red
Homelite 750

HOMELITE CORPORATION 
  PORT CHESTER, NEW YORK, U.S.A.
SERIES OR ASSEMBLY NUMBER:  
YEAR INTRODUCED:  1978
YEAR DISCONTINUED:  1986
ENGINE DISPLACEMENT:  6.8 cu. in. (112 cc)
NUMBER OF CYLINDERS:  1
CYLINDER BORE:  2.25 in. (57.1 mm)
PISTON STROKE:  1.720 in. (43.7 mm)
CYLINDER TYPE:  Aluminum with chrome plated bore
INTAKE METHOD:  Piston ported
MANUFACTURER ADVERTISED H.P.:  6.95 SAE @ 8,000 RPM
WEIGHT :  23.1 lbs. 10.5 kg) powerhead only
OPERATOR CONFIGURATION:  One Man operation
HANDLEBAR SYSTEM:  Anti-vibration
CHAIN BRAKE:  none
CLUTCH:  Centrifugal
DRIVE TYPE:  Direct
CONSTRUCTION:  Die cast mangesium
MAGNETO TYPE:  Electronic two piece
CARBURETOR:  Walbro WB series
MAJOR REPAIR KIT:  
MINOR REPAIR KIT:  
AIR FILTER SYSTEM:  Polyester micro mesh element
STARTER TYPE:  Homelite automatic rewind with compression release and automatic spark retard
OIL PUMP:  Automatic with manual override
OPERATING RPM:  no load 11,000 to 12,000
IGNITION TIMING:  fixed
BREAKER POINT SETTING:  none
FLYWHEEL/COIL AIR GAP:  0.015 in. (0.38 mm)
SPARK PLUG TYPE:  Champion CJ4
SPARK PLUG GAP:  0.025 in. (0.63 mm)
CRANKSHAFT MAIN BEARINGS:  Roller
FUEL TANK CAPACITY:  42 oz. (1240 ml)
FUEL OIL RATIO:  32:1 with Homelite oil
RECOMMENDED FUEL OCTANE:  Regular
MIX OIL SPECIFICATION:  Homelite chain saw mix oil
CHAIN PITCH:  .404 in.
CHAIN TYPE:  Homelite
BAR MOUNT PATTERN:  
SHORTEST GUIDE BAR SUPPLIED:  19 in. (48 cm)
LONGEST GUIDE BAR SUPPLIED:  43 in. (109 cm)
COLOUR SCHEME:  Homelite Red
This is how the rubber connector should appear when installed correctly
750 Cylinder shown
Homelite spare part numbers

650
Crank ..... 70025
Rod ........ 70022
Piston .... 12811
12658 includes piston ring

Super 650
Crank ......... 79236-1
Rod ............ 70274
Piston ........ a12811
Rings ......... 12659

750
Crank .......... 70236-2
Rod ............. 70274
Piston ......... 70672a
68193a includes ring