Bombardier SeaDoo 1989 factory shop manual, Page 74Get this manual
Section 05 FUEL SYSTEM Sub-section 01 (CARBURETORINTAKE SYSTEM)
Flame Arrester
WARNINGNever operate watercraft without flame arrester
ADJUSTMENTS
23, Main Jet
Main jet is replaceable Differents jet size are available to suit temperature and alltitude conditions Always inspect spark plug tip condition when dealing with main jetCAUTIONWhen changing main jet ailways place 0-iring on main jet before installatiion, when main jet is removed from carburetor body the O-ring will remain in carburetor jet bore
Throttle Cable
If release pressure is not within specification, check control lever adjustment Replace spring as necessaryCAUTIONDo not stretch springLeak Test
CAUTIONMake sure engine is turned off before adjusting throttle cable
Lubricate cable with SEA-DO0 LUBE
Throttle lever must reach handlebar grip without causing strain to cable or carburetor cable bracket
Needle valve must stand pressure of PSI for 30 seconds Otherwise, hold carburetor upside down, pour oil over needle valve and apply pressure Check for bubbles If they come from seat gasket, bubbles will exit around seat Re-tighten as necessary