Yanmar YSN8 Shift linkage

[Bob Marsh]

My gears are grinding and I have found some loose locknuts in the forward/reverse linkage. does anyone have adjustment instructions?

Thanks
Bob Marsh
CD27#51 Aquanell
Dunedin FL



bbbob@gte.net

[Scott Ritchey]

My gears are grinding and I have found some loose locknuts in the forward/reverse linkage. does anyone have adjustment instructions?

Thanks
Bob Marsh
CD27#51 Aquanell
Dunedin FL

Bob

Not sure this is your only problem and I've never done this myself.

I'll email the picture to you. Here's what the book says about that adjustment:

The Yanmar YSM Service Manual provides the following guidance on adjusting the neutral screw on the transmission:

Chapter 9 (Reduction and Reverse Gear)
Section 3 (Handling the Reduction and Reverse Gears)
Page 9-7

3.1 Adjustments
3.1.1 Adjusting the adjusting screw for clutch neutral position
1. Remove the cap nut on the upper inclined surface of the clutch forward shaft gear box and loosen the clamp nut.
2. Operate the engine, and with the controlling lever in the neutral position, turn the neutral position adjusting screw clockwise or counterclockwise until the output shaft coupling stops rotating (about
or 1 full).
3. After making sure the output shaft coupling will not rotate forward or backward, tighten the clamp nut.
4. After tightening the clamp nut, securely tighten the cap nut.
5. Too much tightening may break the inside spring. Be very careful.