49 CC Mitsubishi
Engine Rebuild Instructions
Use this guide for complete rebuild only.
Remove fuse
Remove engine
Remove the pull starter and
extender
screws ( pt. 101, 102, 104, )
Remove pull start catch nut (pt.
13) and pull start catch (pt. 16)
Thread pull start catch nut back on
joint shaft (pt#105) 3 turns
Loosen joint shaft (105) 2 turns
Place pry bar behind start rotor
(pt#100) and apply light pressure
Shock pull start catch nut ( pop it
with a hammer) 2 times.
Remove joint shaft and remove electric
starter.
If starter is not free start over.
Remove Spark Plug ( 54)
Plastic cover (58, 53)
Fan Cover (41)
Lock flywheel (31)
Locking Flywheel Use pry bar or rubber coated pliers handle
as a jam, do not jam against fan blade.
Remove clutch bolts ( 40)
Remove flywheel (31) use harmonic balance puller , puller
bolts or flywheel puller.
Remove screws (52)
Remove Cylinder (51)
Remove Wrist pin clips, wrist pin (piston pin) (47) and
bearing (44)
Remove Piston (46)
Remove crankcase bolts (30)
Keys (98, 23)
Seperate CrankCase.
Install New Crankcase Gasket #20
Install New Bearings (21)
Install new Seals ( 18, 29)
Install New Piston (46) and ring set
Install new Wrist pin clips,
wrist pin (piston pin) (47) and bearing (44)
Reasemble engine ( do not pass Keys 98, 23 through
seals 18, 29)