Spark Plug:
1.Remove and clean the spark plug (Figure 21).
2.Adjust the spark gap to 0.028 ~0.031 inch (0.6~0.7 mm).This unit has electronic ignition, which requires no adjustments.
Figure 21. Spark Plug Gap
Engine Oil Replacement:
1.Replace engine oil, first in 25 hours of operation and every 50 to 100 hours afterwards.
2.Drain the engine oil when the oil is warm as shown in Figure 22.
3.Remove the oil drain bolt and sealing washer and allow the oil to drain into a suitable container.
4.Replace engine oil with recommended type oil as listed in Table 3. Engine oil capacity is 1.16 quarts (1.1 liters). DO NOT overfill.
5.Install drain bolt with sealing washer and tighten securely.
Figure 22. Engine Oil (Draining)
MVH-200GH — MAINTENANCE
Air Filter:
1.Remove the air cleaner cover and foam filter element as shown in Figure 23.
2.Tapthepaperfilterelement(Figure23)severaltimesonahard surface to remove dirt, or blow compressed air [not exceeding 30psi(207kPa,2.1kgf/cm2)]throughthefilterelementfromthe air cleaner case side.
CAUTION - Cleaning the Engine Air Filter
NEVER brush off dirt.Brushing will force dirt into the fibers and causepoorperformanceinyourairfilter.Replacethepaperfilter element if it is excessively dirty.
3.Clean foam element in warm, soapy water or nonflammable solvent. Rinse and dry thoroughly. Dip the element in clean engine oil and completely squeeze out the excess oil from the element before installing.
Figure 23. Engine Air Filter
Hydraulic Oil
1.Check hydraulic oil in every 100 hours of operation. With handle bar positioned vertically (storage position), remove oil level check plug (Figure 23) from the top of hydraulic pump and check for proper oil level.
2.Replace hydraulic oil after first 200 hours and in every 1,000 hours of operation.
Figure 23. Oil Level Check Plug
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