MarineEngine. com does not offer troubleshooting assistance or repair advice by email or by telephone. You are invited to join our public Boat Repair Forum to seek. Search by model number, brand, year and horsepower to find the service manualoperators guide that fits your exact Evinrude or Johnson outboard motor. NTAwWDM3NQ==/z/8VwAAOxyNo9Ssmle/$_3.JPG?set_id=2' alt='Johnson 9.9 Service Manual' title='Johnson 9.9 Service Manual' />Johnson. These carburetors. The air breather, they call it the air box is attached to the front of. The choke knob is screwed onto the brass linkage. The nuts holding the carburetor onto the. You have to pull the choke out to. RH nut with the wrench. When you take it. Johnson.Evinrude.ET.9.9.thru.30.Service.Manual.PN.508282.page-1.jpg' alt='Johnson 9.9 Service Manual' title='Johnson 9.9 Service Manual' />These floats are made of varnished cork. Unless the motor has been. The float level is set so the float is parallel with the body when turned. This is done by bending the brass tab at the rear of the. ANOTHER thought, if. When turned to the start position for. Also make sure your stem packing is new for. In the photos below. The knob operating this jet slides over a octagon sleeve around the idle jet. I/51NtSBAIEJL.jpg' alt='Johnson 9.9 Service Manual' title='Johnson 9.9 Service Manual' />The low speed needle which is the top one, screw it in to a. The high speed needle. Run it in gear under load at a fast run, adjust high speed in until it. Slow down to idle and adjust. You can loosen the high speed linkage rod. I also like to slip. Thats all there is to it. If you are having starting problems, and you are sure the. OK, fuel or the choke may not be operating properly for cold. Spray come mixed fuel into the carburetor and see if she fires. If you are having problems with the high and low. Tighten. these nuts to put more tension on the shafts, righty tighty lefty loosy. Anyway, it shouldnt take more than 1. But theyre rarely. As this series advanced, the. The previous. models utilized the carburetor dual knob system with center knob as the. As seen in the RH photo below, this is reversed with the high speed in. This is because the main motor cowling was changed. Now the high speed adjustment. Reed Valves   Stuck open. However, stuck open or. The reeds open. close, sucking fuel into the crankcase from the carburetor because of the osculating. If its bad. reeds, the motor should still crank up and start momentarily if fuel mix. If you decide to pull. There are a couple of hard ones to. If you pry on the manifold with much force you are guaranteed to ruin it. However I wouldnt pull it unless it will start with fuel in the cylinders. Motor Mounts.   The rubber motor mounts are pretty. The actual runner mount is the same for both the upper and lower, but the. Upper Cowling. These rubber mounts are susceptible to breaking, especially the rear ones as. These tend to have the. It is also rather hard to remove the usually. The originals are made of a. If you have the powerhead off, you could make replacement ones from 14 all thread. I am guessing here as to get to them it takes pulling the. Otherwise it is probably the best would be to try to clean. Super Glue.   They are usually just left alone unless you are doing. Leaving them broken, the result is not detrimental to the. Clamp Bracket Screws   These screws that hold the motor to the boat transom threads are  12 X. TPI or National Course. If you can not find any replacement ones then. NC bolt  3 long or with at least 2 of threads. It may just not be a pretty looking as the original, but it will hold the. Most of these screws are damaged by neglect of not. Vaseline before they. Shown in the photo below is a built in. Shaft. Length Change. If you need to change from a short. Drive shafts, shifting. BUT IT IS A HASSLE. Here, just remove. Welding the driveshaft either. If the welder is hesitant, then have them also. Just be sure this weld is up above the. The only thing that might interfere is IF it. Gearbox.  If it runs pretty much OK in neutral, but bogs down in any gear. Unscrew the. large headed slotted screw not the Phillips screw in the bottom area of. What comes out  There should be a dark thick gear. If it is a thick creamy color it has water inside. If no. If this is the. Either of these will put a lot. The lower unit. gearbox is not the unitized type as used on the later 9. There is a spaghetti type O Ring that seals the grease in. The gear box was changed in 1. Also there was a internal. It appears that all the other gears, shaft. This change came about 1. For the. 19. 58 and later, if the rear seal prop shaft seal is leaking you will need to. NAPPA Sierra part number 1. OD 1. 0. 0 and wider. While you are there you might as well replace the rear bronze bearing. O Ring also 1. 0. ID X. 1. 25 thick. NAPPA Sierra. The whole NAPA gear housing seal kit is 1. For those of you with the 1. I am not sure if these parts fit. HOWEVER I suspect most of them will. To install the new prop shaft seal, be sure the hole in the bearing housing. Then lay a flat piece of steel on. This way it can only go in as. When you. reassemble the shaft and shifting slider dog, be sure that the slider yoke. Also the bearing housing has a hole. This gear case does not use a regular gasket, but a spaghetti rubber. This. seal is purchased in bulk so you cut off just a bit more than you need. For this model 1. This seal is the same as used on all the. It may do the job alone. OMC recommended its 3. M 8. 47  sealant. Lots of. folks use Permatex 2 Ultra Black with good success and its available at. The. main thing is that you want to keep it watertight. Also when. When reassembling these gear cases, you should use. If you can not find outboard gear oil, go to a automotive store and. W gear oil.   This would be as close to what the. I use the same oil in my rototiller. The old 1. 0 hp prior to 1. If your motor slips out of gear, you. Or. you have heard that a worn clutch dog can be flopped 1. NO NOT REALLY, same. This MAY help as a temporary. IF the gears are worn like the one above but the dog is still. Water Pump Repair. This water pump impeller replace. To access the shifting lever coupler. Remove this cover. Now the lower. unit should drop down and be loose from the rest of the motor. In replacing this. Asksam 8. The one I worked on had a tendency to slide up too far which could. A. flashlight and slow movement of the shift lever is needed in this situation. Water pumps are. basically the same design as still used on all outboard motors. These. The one thing the early units,  was that. It is then recommended to. One thing that is a good idea is that. This facilitates this tube being inserted into. There appears to be a change in 1. These used what was known as the 4 bolt lower unit. The earlier impeller is the same as the. The 1. 95. 8 and newer are the same as the 9. The impeller used on these later. In the LH photo below, note the nylon. O Ring at the top of this pump housing. This slides into the motors. O Ring section.   I have not been able to readily find the newer type. I am not. sure that they even exist. Any person familiar with normal. The Clymer flat rate manual says it should take 1. This grommet is held in place by 2 ears on the sides that snap into matching. So it is beneficial to grease the lower end of the tube to help it slide in. Water Intake  These motors main. Water is forced into the. Some users. report that when running these motors in a barrel, usually a small. There is a also. a stainless steel intake plate with a few holes near the water pump area on. Flush. kits for this motor are rather scarce. There is really no. But there is hope. Aftermarket Water Flushing Adapter Cover. This method of water intake. At Soon. after these motors came out with this type a water intake system, Tempo made. Flush Kits 9. 18. FAA  as seen in the photos below for a while for these. IF THE PERSON. EVEN RECOGNIZES WHAT THE ARE. Those of you who frequent garage. Evinrude 6hp with Tempo Flush Kit in place. This unit is 3 long not counting the hose nut, and is lined with what.