Step 5: Flexible Shaft Installation
* The flexible shaft that comes with the package has been precut to the right length to fit
your boat. Please grease the shaft with lightweight marine grease before you insert it into the
Stinger drive unit that has been preinstalled on the back of the boat.
* Slide the top end of the flex shaft through the Stinger drive unit on the transom of the boat
and ease it up through the stuffing tube until it emerges just behind the clutch on your engine.
* As the end of the shaft comes into view, use a rag to wipe off any grease so that the shaft is
clean as you slip it into the drive collet on the clutch.
* Ensure the end of the shaft is securely inside the collet, then check the propeller end of the
shaft for correct clearance from the Stinger as explained in the following important tip.
* With the correct clearance set between the Stinger and the thrust washer, use two 16mm
spanners to tighten the collet and so secure the top end of the flex shaft. When running your
boat, frequently check that the collet is tight to avoid your flex shaft becoming loose and
possibly being lost in the water.
Very Important Tip For Shaft Installation
* When inserting the flexible shaft through the Stinger and up into the collet, make sure you
leave a 23mm gap between the back of Stinger and the face of the thrust washer on your
prop shaft. This is critical for the proper working and long life of your flex shaft. When the
crankshaft accelerates from low to high speed, it will cause the crankshaft to stretch out and
draw back a bit, taking the flex shaft with it. If there is no free space left on the prop shaft,
when the clutch bell draws back it will create a strain on the flex shaft that could cause it to
fail in a very short time.
Step 6: Prop Installation And Stinger Adjustment Tip
