confessions of a backyard inventor

Category Mechanical

All mechanical work including working on engines

Re-jet Evinrude 115hp carburetors (1978 2-stroke 115893c engine)

Changing the jets in the carbys for my Evinrude (same as Johnson) 2-stroke 115hp 115893c engine.

Evinrude 115hp impeller replacement (1978 engine, 115893c)

Disclaimer: These instructions likely cover many different models other than the one I have. I don’t know which models these are, so if you don’t have the same engine as mine then be sure to check on it. Having said the above,… Continue Reading →

Car side mirror replacement

I broke my left side mirror (oops!) and needed to have it replaced. Buying from manufacturer costs 3 times the amount for one mirror. Instead, I ordered a set (left and right) online with the added ability of a motorized… Continue Reading →

Fix motorbike blinker cluster

My brother bought a motorbike recently. The bike was in good condition, but the blinker cluster was broken — It wasn’t able to ‘click’ properly to the left and sometimes it would not engage the indicator lights at all. My… Continue Reading →

Replacing boat trailer hubs

As part of the preparation for taking my boat down the coast (3 hours drive) I replaced the hubs on the boat trailer. The trailer had a nice overhaul almost a year ago. I made new brackets to stand on… Continue Reading →

Installing marine audio deck in to boat

My existing Kenwood deck is no longer working. This is the second Kenwood deck i’ve installed that has failed in 2 years. Each time it fails not long after the warranty period ends! So no more Kenwood for me. This… Continue Reading →

Power Generator – Part 2

Part 2 of my power generator project (part 1 is here). Looks like this is going to be a multi-part project as it is taking longer than I thought. I am currently up to the stage of building the covering/casing… Continue Reading →

Power generator – Part 1

Part 2 of this project is available here. DIY Power Generator Input: Fuel, in the form of petroleum Output: 12v DC and 240v AC electricity! While overseas in the Philippines I was very impressed by the way the locals improvised,… Continue Reading →

My first Car PC, from 1999!

Blast from the past! I was going through some old photos and came across a set from back in 1999! Apologies for the sub-par pictures, some of them were taken with my first ever digital camera (an old Kodak camera…. Continue Reading →

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