Anyone know of any articles that show how to install a water pressure sender/ gauge in a 2007 Yamaha 90hp two stroke? I've done some searching and I've only found articles for much larger engines.
TIA
Anyone know of any articles that show how to install a water pressure sender/ gauge in a 2007 Yamaha 90hp two stroke? I've done some searching and I've only found articles for much larger engines.
TIA
2008 G3 Eagle 170
Yamaha 90 2 Stroke (TX Boat)
2007 G3 HP 170
Yamaha 115 2 Stroke (MN Boat)
where did you find the article for the larger engines.
It should be real simple.
1. Purchase a water pressure gauge. The best gauge will be 0 to 30 psi (range), instead of 0 to 60 psi. The gauge should come with a length of hose, a fitting for the back of the gauge for the hose connection, and a bracket that will tighten the gauge to the dash panel. Typically cost $30 to $50. You can purchase on Ebay, or any marine supplier. Almost all of the gauges will work with any brand of engine.
2. Purchase a 14 mm adapter for the hose connection on the motor. This can be purchased online (but probably best to purchase at your local yamaha dealer). This will cost $15 to $25.
3. On your engine block, you will have bolt fitting that you will remove. Your dealer can describe this for your particular engine. It is usually on the top of the block (or head). When you remove the bolt, the 14 mm adapter fitting will screw in where the bolt was located.
4. From the 14mm fitting adapter, you will hook up one of the hose (tubing). You will route the tubing around the motor (under the cover) and then bundle the tubing with the other wires and cables where they exit the motor. The tubing will then be run inside the boat (just like the existing wiring and cables) to your new gauge. That is all that is needed for the gauge. It measure the water pressure through the tubing that is run from the motor to the gauge.
5. The only electrical connection is an option. If the gauge comes equipped with a light (for night time viewing), then you can run wiring from your other lights to the gauge.
6. If you are goingn to experience freezing weather, you need to unhook the tubing from the back of the gauge so that the water will drain out of the gauge. If the water freezes and expands inside the gauge, then it will damage the gauge and it will not read at all or incorrectly.
This is a pretty easy job if you already have a cut-out in your dash panel for an extra gauge. If not, cutting the hole will be one of the worst parts of the installation.
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