Section 04 ENGINE (2-STROKE)
Subsection 06 (ROTARY VALVE)
F01D8OA
717 and 787 RFI Engines
Snap Ring
Position snap ring no. 4 so that its sharp edge
faces outwards.
Rotary Valve
The rotary valve no. 13 controls the opening and
closing of the inlet ports. Therefore its efficiency
will depend on the precision of its installation.
IDENTIFICATION OF THE ROTARY VALVE
ENGINE
ROTARY
VALVE P/N
DURATION
717/787 RFI 420 924 502 159°
Thereisnoidentificationcodeonthevalve. To
find out the duration, place an angle finder on the
valve and measure the valve cut-out angle or use
the following template.
160 smr2004-Complete Line Up
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