Oil pump misaligned or in poor condition. It contains evrey information and detalis you need to help you not only fix your vehicle problems, but also maintain your vehicle good functioning for future use! Engine Uses Too Much Oil Or Smokes Excessively 1. Pre-Ignition or Detonation Knocks or Pings 1. Incorrect spark plug for the kind of service. Restricted oil return line to pan. Engine Turns Over But Does Not Start 1. Electric starter shaft pinion gear not engaging or overrunning clutch slipping.
Spark plugs in bad condition or partially fouled. Stop ruining your paper copy manual! Insufficient air flow over engine. Restricted breather hose to air cleaner. Simply find the page you are looking for, print it off, then toss it once you've finished your work. Oil pump O-ring damaged or missing.
Fuel tank empty or fuel supply valve turned off. Discharged battery, loose or broken battery terminal connections. Incorrect spark plug for the kind of service. Fuel tank vent system plugged or carburetor vent line closed off. Oil Does Not Return To Oil Pan 1. When you buy this highly detailed service repair manual, all maintenance work will be easier.
This manual has 278 pages filled with very discriptive information to assist you in the repair of your Raptor. Discharged battery, loose or corroded connections solenoid chatters. Insufficient oil supply or oil not circulating. Vacuum hose to automatic fuel supply valve disconnected, leaking, or pinched. This repair manual includes the procedures for maintenance, disassembling, reassembling, inspection and adjustment of components and diagnostics for guidance of experienced mechanics.
Engine flooded with gasoline as a result of over use of enrichener. Starter control circuit, relay, or solenoid faulty. Water or dirt in fuel system and carburetor. Weak or broken valve springs. Spark plugs in bad condition or have improper gap or are partially fouled. Damaged intake or exhaust valve. O-ring missing from cam support plate.
Piston rings badly worn or broken. Engine Leaks Oil From Cases, Push Rods, Hoses, Etc. Please peruse and utilize this manual fully to ensure complete repair work for satisfying our customers by keeping their vehicle in optimum condition. Primary chain badly worn or links tight as a result of insufficient lubrication or misalignment. It compensates for the initial wear that occurs during the life of the Yamaha 660. Lower rocker housing gasket installed incorrectly upside down.
Check Engine Light Illuminates During Operation 1. Bypass valve stuck in closed position. Fuel tank vent hose and vapor valve plugged, or carburetor fuel line closed off, restricting fuel flow. Spark plug gap too close or too wide. Valve guides or seals worn.
Upper engine mounting bracket loose. This manual will include topics such as: - General Information - Maintenance - Engine Removal and Installation - Engine Fuel System - Engine Lubrication and Cooling - Engine Combustion System - Transmission System - Front Wheel and Steering System - Rear Wheel System - Fenders and Exhaust Pipe - Electrical System - Troubleshooting And much more! Fuel mixture too rich or enrichener left on too long. When replacement of parts during repair work is needed, be sure to use Scion genuine parts. Water or dirt in fuel system, carburetor or filter. Restricted oil return line to tank. Intermittent short circuit due to damaged wire insulation. This workshop, repair and service manual can easily help you with any repairs that you may need to do.
Piston rings badly worn or broken. Carburetor controls not adjusted correctly. Valve guides or seals badly worn. A Spark Plug Fouls Repeatedly 1. . Performing the scheduled maintenance is very important. Spark plug cables in bad condition and shorting, cable connections loose or cables connected to incorrect cylinders.
This repair manual Scion includes the procedures for maintenance, disassembling, reassembling, inspection and adjustment of components and diagnostics for guidance of experienced mechanics. Faulty low oil pressure switch. The subsequent pages give detailed procedures. Imperfect seal at gaskets, push rod cover, washers, etc. Engine to transmission mounting bolts loose.