As long as the pump is working correctly… all you have to do is, first set the engine idle speed. It should be around 1500 RPM in the water, and 3000 out of the water. (if it’s good, you don’t have to change it)
Next, on the front of the pump, there is a scribed mark on the face of the “Throttle” plate. (where the cable is hooked to) Adjust the cable length, until that scribe mark, is in line with the scribe mark on the body of the pump. That’s it. On most skis, and boats… I will use a inspection mirror to see the marks.
Just a word of advice… when the carbs are removed… the arm on the pump is spring loaded, and it will flip around from its normal, centered position. Most home mechanics will miss this, and the pump will supply max oil when this happens. (safe, but smoky) Make sure that the pump arm is moving with the throttle.
Along with that… I recommend doing a normal oil system maintenance.
Replace the inline filter
Replace the small hoses between the pump and the manifold
Check the injector nipples to see if they are open.
Check for any other leaks, and replace the defective part. (hoses, grommets, seals, etc)
You can get the filter, and the small hoses from your local dealer for a few $$$. (I like to use 1/8 tygon hose for the small hoses) Also, when you remove the small hoses, they are held in place with a crimp clamp. They are not needed. Just use a good, small zip-tie to hold them in place. It’s a low pressure system, so a jip-tie will hold it. With the small hoses off the manifold nipples… use a small stiff wire, and push it though the nipples to make sure they are clear. (If you have an engine that backfires, it will cook oil into the nipples)
OK… once the system is put back together… you need to bleed it be for the first run. Start with opening the screw, on the face of the pump, in-line with the main feed hose. That will let the oil flow, and purge any air in the filter. Once that’s done, start the engine, and let it idle. While it’s idling, hold the pump arm to the open position. This will quickly push the oil up the small hoses. You can watch it, pulse back and forth, until the oil fills the hoses. (this should only take 10 or 15 seconds) Don’t over heat the engine if you are running it out of the water. Also… it will start smoking a lot as the small hoses fill.
Once that’s done… you are ready to ride.
