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4. Adjustment of belt tension:
• If belt tension isn't in the normal tension range, it needs adjustment. Please loosen the engine's
4 mounting bolts (See Fig.10 10 and 11).
• After loosen the engine's 4 mounting bolts, then if belt is too loose, push the engine forward, and if
belt is too tight, move backward the engine till belt tension falls in the normal range, finally tighten
engine's mounting bolts and connection plate's mounting bolts (See Fig. 12).
Figure 10
Engine mounting bolt
5. Adjustment of accelerator cable:
• Idling within normal speed range: 1800±100 Rpm; within high speed range 3300 Rpm, and it can be
adjusted using a speed counter.
• Method of confirming speed and adjustment of it. Adjustment of accelerator cable
Figure 12
• Turn the accelerator valve regulator on the handle frame to the maximum adjustable position without
any load, and check if speed counter shows the speed is 3600±50, and then turn the accelerator
valve regulator to the minimum adjustable position and check whether speed counter shows the
speed is 1800±100.
• If the speed value displayed by the speed counter isn't within the said ranges, it is necessary to
adjust the gasoline engine.
8
Figure 11
Engine mounting bolt
To maximum
To minimum
Figure 13
Accelerator valve regulator
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