Tohatsu 4 Stroke MFS 2/2.5/3.5A Outboards Service Manual, Page 71Get this manual
Power Unit 1.Special Tools
Thickness Gauge PN353-72251-0 Measuring gaps
Compression Gauge PN3AC-99030-0 Measuring compression pressure
Valve Spring Compressor Attachment PN3AB-99076-0 Removing or installing valve springs