1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 131Get this manual

1991 Yamaha Outboard Factory Service Manual 9.9 and 15 HP, Page 131

Quality of the image is intentionally reduced!

TROUBLESHOOTING ENGINE DOES NOT START

Spark is strong

Compression pressure 1ncorrect

COMPRESSION rCompression pressure is incorrect
Gasket Air leakage Oil