Honda UMC425 Owner's Manual page 53

4.Tighten the throttle cable fixing nut securely.
5.Operate the throttle system several times and check it has the free
play (i.e. throttle lever does not move while operating the throttle
trigger).
After adjustment, check the throttle trigger for smooth operation.
Consult your authorized Honda dealer if necessary.
THROTTLE TRIGGER
6.Reinstall the air cleaner cover by inserting the lower tabs, then insert
the upper tab.
CAUTION:
• After removing the air cleaner cover, reinstall the air cleaner cover
securely.
Failure to tighten the cover securely may cause the cover to come
out of position by vibration or some sort of engine malfunction.
• Operating the engine without the air cleaner or improperly installed
air cleaner will allow dirt to enter the inside of the engine, causing
adverse effect to the engine.
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