Above are the OptiMax fuel & air rail service kits. Regular fuel system maintenance and checking all of the above items is key to letting your Optimax outboard live a long life. BIA rating TC-W is the Boating Industry Association's designation for approved 2-cycle water-cooled outboard oils. Mercury outboard oil injection system diagram. Numbers refer to key numbers in drawing below. You can also find a small oil filter in the system, mounted between the pump and the oil reservoir on many skis. You will receive an email and a PayPal money request for the additional shipping charges at the email address provided. It's very much appreciated. CAUTION--Be careful not to get dirt or other contamination in tanks, hoses, or other components of the oil [mixing] system during installation.
This tells you the warning system for the oil system is functional and the warning horn is operational. The Mercury Optimax motor is very different from conventional 2-strokes, and the motors previously offered by Mercury and Mariner. The first oil-injected Yamaha PWC was the Yamaha WaveRunner VXR650 (Marine Jet 650TX), released in 1992. The 3 lines going into the sides of the cylinders are depicted in this photo. 2 stroke oil mercury outboard oil injection system diagram. Route oil hoses through wire clamp. Mercury Tech: 300X oil pump hose routing???
The oil [mixing] system delivers oil mixture on engine demand, from 100 to 1 at idle to 50 to 1 at wide open throttle. NOTE: There is a safety reserve of oil left in the reser-. Portions are Copyright © 2006 by James W. Hebert. Last edited by Sea2jet; 01-07-2017 at 07:03 PM. What Year did Yamaha WaveRunners Start Oil-Injection? It is not uncommon to see these motors reach a few thousand hours with little repairs. Mercury outboard oil injection system diagramme. The remote oil tank should be installed in an area in the boat where there is access for unlatching the quick disconnect and removing the tank for refilling or in an area where it will be possible to remove the filler cap and add oil without removing the tank.
Does this scenario suggest a failure of a particular component? 01-12-2017, 07:09 PM #14. If horn still sounds a continu-. How Does Oil Injection Work on a Jet Ski? [Explained. The fuel and air rail assembly is now ready to be carefully packaged up and returned to you. The port side does have some bleed hose fittings but they are not by the cylinders like the starboard side. The oil [mixing] pump is driven by the crankshaft and is connected to the throttle linkage for metering the varied flow of oil per engine RPM.
This pump is controlled by the throttle lever in most jet skis; the more throttle you apply, the more oil the pump delivers to the intake manifold, where it mixes with the gas. The oil [system] warning sound is an intermittent BEEP BEEP BEEP, etc. Thanks for the explanation Kevin. The oil injection hoses on a 300x go from the oil pump to the fittings on the reed plate. You can now be 100% assured that your fuel rail system is in working order and ready for service. The oil and gasoline in this system are simply mixed in a T-connection on the suction side of the fuel pump, prior to being inducted into the air stream that leads to the inlet port of the combustion chamber. If continuity exists, sen-. NOTE: Additional parts are available, though not all are listed on this website. You will also require the air regulator installation tool listed below. 1994 Merc 225 - 2-stroke oil pressure problem. Quart or less, the problem is low oil level. NOTE: An oil hose extension kit (41729A3) is available for the remote oil tank. Leaking Teflon carbon seals on the direct air injectors can cause a low compression reading, possibly tricking you into thinking that you have scored cylinder walls. If there is more than 1 quart of oil in the reservoir, then the problem may be in the oil injection pump.
Thanks for any ideas. Install oil hose (with blue stripe) to Tee fitting on engine, as shown. That's not depicted anywhere in the manual for the port side. 5L Optimax Fuel Flow Diagram - 75hp, 90hp, 115hp, A very common misconception about the Optimax motors is that they are unreliable. In an emergency, when Quicksilver oil is not available, substitute a high quality 2-cycle oil that is intended for outboard use and meets BIA rating TC-W, shown on the oil container. Route remote oil tank hoses to starboard side of engine. Maybe a bad check valve somewhere? An air leak at the engine reservoir will cause oil spillage. This fluid is circulated back through a 2 micron Racor fuel/water separating filter to ensure that no harmful debris will be put back into the rails.
With an empty reservoir, the pump will run dry, which results in an instant engine seizure.
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