650LJ (Turbo)

Turbo Oil Leak sources

Hi all

Anyone in need of the main shaft seal for a Seca Turbo oil pump -

The seal is not listed by Yamaha as they only ever sold complete pumps which
are now obsolete.

I have managed to track down what appears to be an identical seal as used in
many Honda model oil pumps including the GL1800 Gold Wing.

The Honda part number is 91208-MN1-771 and the seal size is 11 x 15 x 3mm

If this seal has failed you will be getting oil flowing back to the turbo
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Turbo Troubleshooting

INTRODUCTION

The Yamaha turbo system is made up of three basic systems: the fuel system, the intake system and the exhaust system. These systems work together to Increase the performance and efficiency of the engine.

CMS Sensors Troubleshooting

SIDESTAND MONITOR

*Main switch is ON.
*Engine running.

CMS Components

Sender locations

 

HTML clipboard

XJ750


System Components

Sidestand switch

Brake fluid level sender

Troubleshooting Headlight, Brakelight, Taillight issues and other CMS Troubles

Problem: HEADLIGHT DOES NOT COME ON. (MONITOR DOES NOT LIGHT.)

Light lead connections:

HI: Yellow to Yellow/Green (or Yellow/Red)

Lo: Green to Green/Red

NOTE: On the XJ750, no lights will come on before the engine starts.

CMS Wiring Diagram

XJ750

CMS Monitor Troubleshooting

Problem: THE COMPUTERIZED MONITOR DOES NOT COME ON WITH THE MAIN SWITCH TURNED ON.

 

Computerized Monitoring System

CMS Wiring Diagram

XJ650

 

CMS Sensors Troubleshooting

SIDESTAND MONITOR

*Main switch is ON.
*Engine running.