Description
YAMAHA AUTO LUBE 2/STROKE OIL PUMP P/NO 257-13101-04, 2N31310100, 1M21310101 etc
**NOTE THIS WILL FIT THE FOLLOWING MACHINES BUT YOU WILL NEED TO ADJUST THE PUMP STROKE SHIMS TO SUIT YOUR MACHINE**
Yamaha, FS1 (2G0 1977-)
Yamaha, FS1DX (2G1, 1978-)
Yamaha YB100 (All)
Yamaha DT250 (1977-78)
Yamaha DT400 (1977-78)
Yamaha YL2 (Late)
Yamaha YG5 (Late)
Yamaha TY250 (all)
Yamaha DT125 (1979)
Yamaha DT175 (1979)
Yamaha YT175 (1981-)