Section 04 ENGINE (2-STROKE)
Subsection 05 (BOTTOM END)
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1. No play
In case of a play, turn reed petals upside down and
recheck. If there is still a play, replace petals.
Check perfect condition of rubber coating on reed
valve body.
Check stopper distance from center of reed valve
block.
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A. 13 ± 0.25 mm (.512 ± .010 in)
NOTE: Distance should be the same on both
sides.
Bent stopper as required to obtain the proper dis-
tance.
Air Compressor
Refer to ENGINE MANAGEMENT for components
inspection. However, if you find aluminum dust
or debris in this area, they may have flowed to-
ward the injection oil reservoir. In this case, the
oil reservoir and lines must be flushed and the fil-
ter replaced.
CAUTION: Failure to properly clean the oil sys-
tem will result in serious engine damage.
ASSEMBLY
Assembly is essentially the reverse of disassem-
bly procedures. However pay particular attention
to the following.
NOTE: It is recommended to spray
BOMBARDIER-ROTAX injection oil on all
moving parts when reassembling the engine.
Crankshaft and Bearing
Apply Loctite 767 anti-seize on part of crankshaft
where bearing fits.
Prior to installation, place bearings no. 4 into a
container filled with oil, previously heated to 75°C
(167°F). This will expand bearing and ease instal-
lation.
To properly position the outer bearing(s), a dis-
tance gauge must be temporarily installed against
the inner bearing. Slide the outer bearing until
stopped by the distance gauge, then remove it.
ENGINE DISTANCE GAUGE
717
(P/N 529 034 800) (PTO)
787 RFI
(P/N 529 034 900) (MAG)
947DI
(P/N 529 035 100) (MAG)
(P/N 529 035 000) (PTO)
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1. Distance gauge
144 smr2004-Complete Line Up
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