Yamaha RS90K Service Manual

Also see for RS90K: Owner's manual Service manual

Contents

Yamaha RS90K Service Manual Manual pdf 18 page image

2-1INSPADJPERIODIC INSPECTION AND ADJUSTMENTINTRODUCTIONThis chapter includes all information necessary to perform recommended inspections and adjustments. Thesepreventive maintenance procedures, if followed, will ensure more reliable machine operation and a longer ser-vice life. In addition, the need for costly overhaul work will be greatly reduced. This information applies tomachines already in service as well as new machines that are being prepared for sale. All service techniciansshould be familiar with this entire chapter.PERIODIC MAINTENANCE CHARTRegular maintenance is most important for best performance and safe operation.Item RemarksPre-opera-tion check(Daily)Initial1 month or800 km(500 mi)(40 hr)EverySeasonallyor 3,200 km(2,000 mi)(160 hr)Spark plugsCheck condition.Adjust gap and clean.Replace if necessary.Valve clearance Check clearance.Adjust clearance when engine is cold. Every 40,000 km (25,000 mi)Engine oil Check oil level.Replace.Engine oil filter cartridge Replace.Every20,000 km(12,000 mi)Fuel Check fuel level.Fuel filter Check condition.Replace if necessary.Fuel line Check fuel hose for cracks or damage.Replace if necessary.Engine coolantCheck coolant level.Air bleed the cooling system if necessary.The coolant should be changed at least every season.CarburetorCheck throttle lever operation.Adjust the jets. Whenever operating condition (elevation/tem-perature) is changed.Engine stop switch Check operation.Repair if necessary.Throttle override system(T.O.R.S.)Check operation.Repair if necessary.Throttle lever Check operation.Repair if necessary.Exhaust system Check for leakage.Tighten or replace gasket if necessary.Drive guard Check for cracks, bends or damage.Replace if necessary.V-belt Check for wear and damage.Replace if necessary.Drive track and idler wheels Check deflection, and for wear and damage.Adjust/replace if necessary.Slide runners Check for wear and damage.Replace if necessary.Brake and parking brakeCheck operation and fluid leakage.Adjust free play and/or replace pads if necessary.Replace brake fluid. See NOTE on page 2-2.Disc brake installation Check for slight free play.Lubricate shaft with specified grease as required.Every1,600 km(1,000 mi)INTRODUCTION/PERIODIC MAINTENANCE CHART2