the gasket surface and use a new gasket.
W ipe off any grime from the threads and
tighten to the specified torque.
Air filter cleaning
1. Remove the front cover by removing the
screws.
2. Remove the air filter case cover by unhook-
ing the fasteners.
3. Remove the air filter element by unhook-
ing the fastener.
4. Wash the air filter element gently but to-
tally in solvent.
5. Press the excess solvent out of the air fil-
ter element and let it dry.
6. Check the air filter element. If damaged,
replace it.
6. Apply foam air filter oil or other quality foam
air filter oil to the air filter element. If foam air
filter oil is not useful, SAE 10W30 motor oil
may be used.
7. Equip the air filter element, the air filter case
cover and the front cover.
Air intake restrictor plate removal
To get full engine performance ability, remov-
ing the air intake restrictor plate is required.
1. Remove the air filter element. (See Air fil-
ter cleaning for removal and installation
procedures.)
2. Remove the air intake restrictor plate.
3. Equip the air filter element.
Carburetor adjustment
The carburetor is a principal part of the en-
gine and requires very complex adjustment.
Most adjusting should be left to your dealer
who is professional and experienced on this.
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