Flywheel Magneto - Yamaha JT1 Series Service Manual

ENGINE-Piston Flywheel Magnet
3) Removing Carbon
Remove carbon accumulqt1ons on the piston
head, using a screwdriver or a saw-blade
Note Whenever carbon accumlat1ons are removed,
take care that the under lying metal
1s
not
scored or otherwise damaged
Carbon and gum accumulations in the piston
ring grooves will result in piston ring seizure
Remove them from the ring groove
B Piston Installation Direction
Install the piston with the arrow mark on the head
pointing forward (toward the exhaust port of the
cylinder)
3 -7 Flywheel Magneto
A Remove the nut using a flywheel magneto
ho!dmg tool to hold the magneto and a 19 mm
socket to loosen it.
F,g 3-6-3
Fig 3-6-4
Fig 3-6-5
F,g 3-7-1
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