If either the lift pump or high pressure pump are not working, after a few minutes, the guage will drop because of lack of fuel. Inspect regulator diaphragm for cuts or tears. Gently pry up on injector to loosen O-ring adhesion and remove injector. Because you are using your OptiMax for trolling, you may be running it close to the point where its charging current and its electrical demand are about equal. Secure starter to engine with 3 bolts. This is probably why they specify such a huge starting battery for them.
Acc to Boating magazine, in 2004 4 stroke outboards had about 40% of the market, by 2007 it will be 75%. Inspect actuator components for wear or damage. At this piont we changed impeller, spark plugs, all filters, and fluids. I don't think temp is the problem as it stalls straight away. I've had no problems with the engine. Drain tank if water is present. It is starting to look like I will change my batteries every 250 to 300 hours.
I now have the check engine light on. What did your plugs look like? He contacted the two guys and had them give some information after break-in. Use Piston Ring Expander 91-24697 and install crankshaft sealing rings into groove. If the reverse gear, reverse gear adaptor, large thrust bearing, bearing race, or gear housing were replaced, install 0. Does this sound ok or would a dual purpose batterys be better? Turn driveshaft clockwise 2 or more turns to seat driveshaft bearings. The fuel required for combustion is forced into the cylinder through an injector placed in the top of the cylinder head.
When they are running right they give good fuel economy and good performance. Check for tapered, out-of-round egg-shaped and oversize bore. Use a socket and breaker bar to hold pinion nut pad area where flex handle will con- tact gear housing while torquing nut. If it says you can't use deep cycle batteries then I would follow the recommendation. Secure bracket assembly to vapor separator with 4 screws. Here are my recommendations for a longer life: 1. If reverse gear bearing remains attached to reverse gear, install Universal Puller Plate 91-37241 and position puller plate, gear and bearing on a press with gear side down.
Torque nut to 35 lb. In any case, we are not sure that means that the pump is broken. I just went through half a boating season chasing an intermittent spark problem in just one cylinder of my engine, eventually curing it with a new power pack. Place second seal on short shoulder side of seal driver with lip of seal toward shoulder. Cleaned them up the next day the proper way and added lock nuts. But the problem remains the same, rpm are very ustable at idle speed.
Lastly the Bass Boat Central site has a mercury forum moderated by a couple of great master mechanics. Slide Hammer Puller 91-34569A1 5. Use Piston Ring Expander 91-24697 to remove piston rings. If anyone could point me in the right direction as far as diagnosing the issue, I would be very appreciative. Connect voltmeter between common engine and Test Point1. Information on this page is provided to you as a free service of iboats.
Drive insert out of cover with a punch and hammer. I use the 1 battery on odd days and 2 on even days to keep them both exercised and charged. I had the cranking battery and trolling batts tested, they show as good batteries. Return remote control to neutral. Fasten clamp together with two screws. Clean bolt threads with Loctite 7649 Primer 92-809824.
Torque to 55 Ib-in 6 Nm. Inspect the water pump impeller for wear on the end, top and bottom of the impeller blades. Torque screws to 17 lb-in 1. Install lower mount retainers and secure each retainer with 2 bolts. You can find all types of info on the 150 optimax.
Using an awl or electric pencil, scribe the cylinder identification number on each con- necting rod as shown. My plan is to head out again this Saturday and try and duplicate the issue. Torque screws to 100 lb. There are some sharp professional Mercury mechanics that prowl here, so perhaps one of them can jump in with further explanation of the details of the ignition system on the OptiMax. The bore for this outboard is 3.