Description
This 47 page 1973 Yamaha LTMX, ATMX, MX250, MX360 and scrambler SC500 Service Manual provides detailed service information, step-by-step repair instruction and maintenance specifications for 1973 Yamaha LTMX, ATMX, MX250, MX360 and scrambler SC500 motorcycles. Reproduction of the original, out of print, manual.
1973 Yamaha LTMX, ATMX, MX250, MX360 SC500 Motorcycle Manual Table of Contents
1973 Yamaha LTMX, ATMX, MX250, MX360 SC500 SPECIFICATIONS
1973 Yamaha LTMX, ATMX, MX250, MX360 SC500 PERFORMANCE CURVES
1973 Yamaha LTMX, ATMX, MX250, MX360 SC500 ENGINE
Cylinder Head
Cylinder
Piston Pin Clip
Piston
Piston Rings
Clutch
Kick Mechanism
Omni Phase Balancer
Adjusting the Gear Shift Arm
Change Shaft
Transmission Gears and Shift Forks
Crank
Bearings
Air Cleaner
Carburetor
1973 Yamaha LTMX, ATMX, MX250, MX360 SC500 CHASSIS
Spokes
Steering
Rear Arm
Handlebar
Fuel Cock
Wires
Tire Rims
Bead Spacers
Thermal Flow Shock Absorber
RETIGHTEN THE BOLTS AND NUTS
TUNING UP 1973 Yamaha LTMX, ATMX, MX250, MX360 SC500
Carburetor Setting
Selection of Pilot Jets and Air Screws
Throttle Valve Cutaway
Jet Needle Clip Position
SETTING AT RACING COURSES
Selection of Main Jets (MJ)
SPARK PLUG SELECTION
SETTING PARTS
ELECTRICAL SYSTEM (ATMX LTMXI)
Ignition System – Function and Service
Ignition Timing
Ignition Coil
Condenser
ELECTRICAL SYSTEM {MX250 MX360 SC500)
CDI (Condenser Discharge Ignition)
Construction
Operation Fundamentals
Wire Connection
Checking
Specifications and Performance
Setting the Ignition Timing
In 1973 Yamaha added four completely new motocrossers – the LTMX, ATMX, MX250, MX360 and scrambler SC500. They incorporate some of Yamaha’s latest technical refinements such as V-type reed valve and torque induction design aiming at easier starting and greater torque at low speeds. These new improvements require your special care in rendering your service work. This Service Manual provides the technical details required for Yamaha servicemen so that they can service the LTMX, ATMX, MX250, MX360 and SC500 in a correct and skillful manner. It is advisable to use this manual together with the manuals for DT, RT or LT, AT, CT series motorcycles.
