Section 04 ENGINE (2-STROKE)
Subsection 05 (BOTTOM END)
F00D2DA
SECOND PASS
Finish the cleaning with acetone.
CAUTION: Ensure to clean compressor lubrica-
tion nipple.
CAUTION: Be careful not to spray cleaner on
the painted surface of the engine.
CAUTION: Never use a sharp object to scrape
away old sealant as score marks incurred are
detrimental to crankcase sealing.
INSPECTION
Assembled Engine
The following checks can be performed with en-
gine in watercraft without overhauling engine.
Crankshaft Alignment at Center
Main Journal
Since it is an assembled crankshaft it can become
misaligned or deflected. Crankshaft can be twist-
ed on center main journal, changing timing of one
cylinder in relation with the other.
F01D1NA
1
1. Main journal alignment here
To accurately check if crankshaft is twisted on cen-
ter main journal, proceed as follows:
– Remove magneto housing cover.
– Remove flywheel nut (and magneto rotor for
the 787 RFI and 947 DI engines). Refer to
MAGNETO SYSTEM for procedures.
– Install Bombardier degree wheel (P/N 529 035
607)) on crankshaft end. Hand-tighten nut only.
– Remove both spark plugs.
– Install a TDC gauge in spark plug hole on MAG
side.
– Bring MAG piston at Top Dead Center.
– As a needle pointer, secure a wire with a cover
screw and a washer.
– Rotate degree wheel (NOT crankshaft) so that
needle pointer reads 360°.
140 smr2004-Complete Line Up
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