Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

System Specifications

Cylinder Head/Valve Train
Cylinder head flatness; 0.50 mm (0.002 in.) for 150 x 150 mm (5 x 5 in.) area 0.25 mm (0.001 in.) for 25 x 25 mm (1 x 1 in.) area 0.120 mm (0.005 in.) overall
Combustion chamber volume 52 cc (3.17 CI)
Camshaft cap bolts 10 Nm (89 in. lbs.)

LH:




RH:





Cylinder Head bolts:
New cylinder head bolts must be installed. They are torque-to-yield designed and cannot be reused.
Stage 1 40 Nm (30 ft. lbs.)
Stage 2 90 degrees
Stage 3 Loosen one full turn.
Stage 4 40 Nm (30 ft. lbs.)
Stage 5 90 degrees
Stage 6 90 degrees





Upper intake manifold bolts





Lower intake manifold bolts

LH:




RH:





Exhaust Manifold nuts