GARDEO PRO GPTHT2560, Original Instructions Manual

Page: 50 / 66

50
Parts required:
1 Tune-up kit
Important: Use a TORCH L9T spark plug (Or equipment like: NGK BPMR7A, or
CHAMPION RCJ6Y), otherwise severe engine damage may occur.
●
Remove spark plug and check for fouling, worn and rounded center electrode.
●
Clean the plug or replace with a new one. Do not sand blast to clean. Remaining
sand will damage engine.
●
Check and adjust spark plug gap by bending outer electrode.
●
Tighten spark plug to 150-170 kg/cm (130-150 inch/lb.).
Cooling system (Level 2)
Fig. 15 - 20
Tools required:
1 Screw driver
1 Cleaning brush, 25 mm or 50 mm (1 or 2)
Parts required:
None if you are careful.
Important: To maintain proper engine operating temperatures, cooling air must pass
freely through the cylinder fin area. This flow of air carries combustion heat away from
the engine.
Overheating and engine seizure can occur when:
• Air intakes in the crankcase are blocked, preventing cooling air from reaching the
cylinder.
• Dust and grass build up on the outside of the cylinder. This build up insulates the
engine and prevents the heat from leaving. Removal of crankcase cooling passage
blockages or cleaning of cooling fins is considered Normal maintenance. Any
failure attributed to lack of maintenance is not warranted.
When overheating and engine seizure occurs do the following:
• Remove spark plug lead and spark plug cap..
• Remove screw (F) from the cylinder cover.
• Remove bottom right (G) and bottom left (G) screws from cylinder cover.
• Carefully pull cylinder cover forward, pull ignition lead and flameout lead
and lay aside.
• Loosely install spark plug cap to keep debris out of the cylinder. Use brush to remove
dirt from cylinder fins.
Important: Do not use a metal scraper to remove dirt from the cylinder fins.
• Assemble components in reverse order.