Boat Maintenance
Changing Spark Plugs! (Part 1)
Ok a simple one!
All outboards (except the Yanmar diesel ones) - require a change of spark plugs from time to time!
Now back in the good ol days - spark plugs were built to last basically the life of the engine...and came in a series of "parts" that could be dissassembled, as the cathode (+ve) part wore down...and replaced / changed, re-adjusted, insulator replaced, whatever!
You had the ceramic (porcelaine in those days) insulator and the body of the plug plus the cathode rod and a fitting at the end for the lead to either press fit over or screw to, with a washer etc...
Service On 4 strokes - changing Impeller!
OK,
Here goes nothing!
Step 1).
I always put my engine into forward gear before I drop the lower unit! The reason is - it helps to relocate the gear shift linkage into the same position..so that your gears remain exactly where they started!
On some OB's, you actually have to find that gear shift linkage under the engine cowling and generally somehwere near the bottom of the pwer head and undo a connection such as a allen key screw thread...to disengage (uncouple) the gear shift lever rod!
Simple Prop Maintenance 101
Ok our First Boat maintenance thread! Lets hope it works!
It is a good idea - to periodically take a look at your propellor and service it, in order to avoid potential drama's at sea and avoid expensive breakdowns / repairs.
Things can and do go wrong with propellors!
I hope this thread will assist folks to confidently take a peek at their own propellors and keep them in tip top shape for good performance, reliability and safety!

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