Yamaha YZF-R125 Service Manual: Lubrication diagrams

Engine oil lubrication chart

Oil pump Oil filter element Crankshaft Camshaft Main axle Drive axle ...

Cooling system diagrams

Radiator inlet hose Coolant reservoir hose Radiator cap Radiator Coolant reservoir breather hose Coolant reservoir Water pump breather hose Water pump Radiator outlet hose ...

Other materials:

Protective apparel
The majority of fatalities from motorcycle accidents are the result of head injuries. The use of a safety helmet is the single most critical factor in the prevention or reduction of head injuries. Always wear an approved helmet. Wear a face shield or goggles. Wind in your unprotecte ...

Checking the crankshaft position sensor
1. Disconnect: Crankshaft position sensor coupler (from the wire harness) 2. Check: Crankshaft position sensor resistance Out of specification  Replace the crankshaft position sensor/stator assembly. a. Connect the pocket tester ( × 100) to the crankshaft position sensor c ...

Disassembling the rear brake caliper
1. Remove: Brake caliper piston "1" Brake caliper piston dust seal "2" Brake caliper piston seal "3" a. Blow compressed air into the brake hose joint opening "a" to force out the piston from the brake caliper. WARNING Cover the brake caliper piston with a rag. Be careful no ...