3. CHECK STEERING SYSTEM
Check if steering is stable.
1
Check if steering friction is adjusted correctly.
Turn clamp handle screw clockwise to increase
resistance.
Turn clamp handle screw counter clockwise to lower
resistance.
1. Clamp handle screw
4. CHECK SHIFT LEVER AND THROTTLE
Check if the shift lever is operated smoothly.
Check if the throttle grip is turned smoothly from full closed position to full open position.
5. CHECK ENGINE STOP SWITCH ASSY
Check if the engine stops when pushing the engine stop switch assembly or pulling out the stopper
hang rope.
6. CHECK COOLING WATER CHECKING HOLE.
When the engine is running, check if cooling water overflows at the cooling water checking hole.
1. Cooling water checking hole
1
7. BREAKING-IN RUNNING
○1 Initial 1 hour: operate the engine at 2000 r/min or about a half throttle.
② The second hour: operate the engine at 3000 r/min or about 3/4 throttle.
③ The following 8 hours: operate the engine at full throttle continuously. Each operation time
doesn’t exceed 5 minutes.
8. INSPECTION AFTER BREAKING-IN RUNNING
○1 Check if gear oil contains water..
② Check if the fuel line leaks.
③ After breaking-in running, operate the engine at idling speed. Use cleaning tool to wash over
the cooling water passage by fresh water.
9. AFTER BREAKING-IN RUNNING, INSPECT IDLING SPEED.
① Preheating engine for 5 minutes.
② Using the tachometer to measure idling speed RPM.
If out of specification, adjust it. Idling speed: 900~1000 r/min.
③ Turn the throttle stop screw clockwise or counter clockwise
until the specified idling speed is attained.
④ After adjusting idling speed, picking up RPM several times to check the engine’s stability.
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