Features:

*100% brand new and high quality

*Made of high quality material, durable and practical to use

*Sturdy and durable, long service life

*Superbly engineered alternatives.

Description:
One  NEW for mikuni carburetor rubber diaphragm
There are many guides and pics in internet how to change these but it just looks easy and it is not. The parts are very fragile and delicate so I strongly advise the change to be done by professional.     
This Yamaha 3F7-14940-00-00   (( DIAPHRAGM RUBBER ONLY ))  fits the following models and components:

Fits for:

Yamaha Motorcycle 1978 XS650SE-11 Carburetor
Yamaha Motorcycle 1978 XS650SE Carburetor
Yamaha Motorcycle 1979 XS650SF Carburetor
Yamaha Motorcycle 1980 XS1100LG Carburetor
Yamaha Motorcycle 1980 SR250G Carburetor
Yamaha Motorcycle 1980 XS1100G Carburetor
Yamaha Motorcycle 1980 XS650SG Carburetor
Yamaha Motorcycle 1980 XS1100SG Carburetor
Yamaha Motorcycle 1980 XS650G Carburetor
Yamaha Motorcycle 1981 SR250TH Carburetor
Yamaha Motorcycle 1981 SR250H Carburetor
Yamaha Motorcycle 1981 XS1100LH Carburetor
Yamaha Motorcycle 1981 XS1100SH CABURETOR
Yamaha Motorcycle 1981 XS1100H Carburetor
Yamaha Motorcycle 1981 XS650SH Carburetor
Yamaha Motorcycle 1981 XS650H Carburetor
Yamaha Motorcycle 1982 XS650SJ Carburetor
Yamaha Motorcycle 1982 XJ1100J Carburetor
Yamaha Motorcycle 1982 SR250J Carburetor
Yamaha Motorcycle 1983 SECA - XJ900RK Carburetor
Yamaha Motorcycle 1983 XS650SK Carburetor