Rato R160, Service Manual

Page: 35 / 78

29
and valve to measure valve clearance.
4
）
If adjustment is necessary, proceed as
follows:
a
．
Hold the rocker arm pivot and loosen the
valve lock nut
b
．
Turn the rocker arm pivot to obtain the
specified clearance.
c
．
Fix the rocker arm pivot with a spanner,
then tighten the lock nut.
d
．
Recheck valve clearance after tightening
the valve lock nut.
3-7 GOVERNOR
1
）
Remove the fuel tank.
2
）
Loosen the nut on the governor arm. Check
the throttle to ensure it is fully open.
（
turn to
left to extreme position
）
.
3
）
Turn the governor support right to extreme
position(governor fully close position).
Tighten the bolt and nut.
4
）
Check the governor support and throttle to
ensure free moving.
5
）
Assembling fuel tank.
Start the engine, rotate the throttle lever l1miting screw to adjust the maximum speed.
Maximum 3780±50rpm
Valve clearance
IN
：
0.15 ± 0.02 mm
EX
：
0.20 ± 0.02 mm
Throttle lever l1miting screw
Nut
Governor support