Rules within the EU mean you can no longer buy a new, small 2-stroke outboard motor in Europe, but their light weight, compact size and longevity means tens of thousands of used examples are still to be found on boats from Caithness to Crete. The start of the season is when any unreliability issues are most likely to rear their ugly head, and there’s a good reason for that. ‘Most people assume they can just take their outboard off their boat and put it straight into their shed for the winter,’ technician Steve Dawkins told me in his workshop at the Cabin Boatyard on the Hamble River.
‘Then, come the spring, they’re surprised when it doesn’t work.’ I kept quiet. My outboard had been sitting forlornly in the garage among a pile of ropes, fenders and sails since it came ashore at the end of last summer. Do it yourself! This step-by-step guide takes you through a service of a small 2-stroke outboard.
The pictures show Mariner 3.3hp and Suzuki 2hp outboards, and while other makes of engine are subtly different, the main components should be recognisable. Anyone with a reasonable level of technical ability should be able to breeze through the service, but if you’re in any doubt, take yours along to a dealer. If you are going to do it yourself – and this mostly applies to late-model motors – check first that what you’re doing won’t invalidate any warranties. 1: Drain the old fuel ‘The most common complaint we get is from people saying it worked fine last year but now it won’t start,’ said Steve. This is because petrol evaporates over time, leaving behind an oily, paraffin-type residue which gums up the carburettor. So the first step is to drain the old fuel.
8: Now reattach the gearbox to the lower leg. Carefully slide in the gearbox, making sure the water pickup pipe (small spigot just above the gearbox linkage in this photo) is unblocked and lined up correctly inside its socket.
On smaller engines with only one gear Remove the propeller and then the plate behind it. The water pump impeller can be found behind this plate. Check and replace the gearbox oil The professionals perform a pressure test to check the seals are still doing their job.
Without the right equipment you’ll struggle to do this, so you’ll have to make do with a visual inspection. One way to see if you have a major problem is to leave the engine standing on a piece of clean cardboard overnight and check for telltale leaks in the morning.
Yamaha Outboard Service and Repair Manual This Seloc outboard repair manual covers Yamaha 2 & 4 stroke marine motors for the years 1984-1996. The Yamaha Outboard Service Manual Applies to the Following Years:. 1984. 1985. 1986. 1987.
1988. 1989. 1990.
Yamaha 6 Hp Two Stroke Manualidades
1991. 1992. 1993. 1994. 1995. 1996 Seloc marine manuals can save you money on maintenance and repair costs. Step-by-step procedures and detailed illustrations guide you through every job, from routine maintenance and troubleshooting, all the way to complete teardown & rebuild of the marine motor.
This manual covers all 2-250 Hp 2 & 4 stroke models from Yamaha. 1-4 cylinder, V4 and V6 engines are covered. Note: Jet Drives Only Seloc manuals include Skill level Ratings (1 - 4 wrenches) based upon the degree of difficulty along with Special Tool icons where a OEM or electronic testing tool is required to perform the specified procedure. For a detailed look at what this repair manual covers please take a look at the. Engines Covered:.
2 hp, 1 cyl. (43cc) 2-stroke 1984-1996. 2 hp, 1 cyl.
(50cc) 2-stroke 1995-1996. 3 hp, 1 cyl. (70cc) 2-stroke 1989.
3 hp, 1 cyl. (70cc) 2-stroke 1990-1996. 4 hp, 1 cyl. (83cc) 2-stroke 1984-1996. 4 hp, 1 cyl. (103cc) 2-stroke 1996. 5 hp, 1 cyl.
(103cc) 2-stroke 1984-1996. 6 hp, 2 cyl. (165cc) 2-stroke 1986-1996.
8 hp, 2 cyl. (165cc) 2-stroke 1984-1996. 9.9 hp, 2 cyl.
(246cc) 2-stroke 1984-1996. 9.9 hp, 2 cyl. (232cc) 4-stroke 1984-1996. 15 hp, 2 cyl. (246cc) 2-stroke 1984-1996.
20 hp, 2-cyl. (395cc) 2-stroke 1996. 20 hp, 2 cyl. (430cc) 2-stroke 1996. 25 hp, 2 cyl.
(395cc) 2-stroke 1988-1996. 25 hp, 2 cyl. (430cc) 2-stroke 1990-1996. 25 hp, 2 cyl. (496cc) 2-stroke 1984-1996. 25 hp, 3 cyl.
(496cc) 2-stroke 1996. 28 Jet, 3 cyl. (698cc) 2-stroke 1990-1996. 30 hp, 2 cyl. (496cc) 2-stroke 1984-1996.
30 hp, 3 cyl. (496cc) 2-stroke 1987-1996. 35 Jet, 3 cyl. (698cc) 2-stroke 1987-1996. 40 hp, 2 cyl. (592cc) 2-stroke 1989-1996.
40 hp, 3 cyl. (698cc) 2-stroke 1984-1996. 45 hp, 4 cyl. (935cc) 4-stroke 1996. 48 hp, 2 cyl. (760cc) 2-stroke 1996.
50 hp, 3 cyl. (698cc) 2-stroke 1984-1996.
50 hp, 3 cyl. (849cc) 2-stroke 1994-1996. 50 hp, 4 cyl.
(935cc) 4-stroke 1995-1996. 55 hp, 2 cyl. (760cc) 2-stroke 1989-1995.
60 hp, 3 cyl. (849cc) 2-stroke 1991-1996. 65 Jet, 3 cyl. (1140cc) 2-stroke 1987-1996. 70 hp, 3 cyl.
(849cc) 2-stroke 1984-1996. 75 hp, 3 cyl. (1140cc) 2-stroke 1994-1996. 80 hp, 3 cyl. (1140cc) 2-stroke 1994-1996.
80 Jet, V4 (1730cc) 2-stroke 1987-1996. 85 hp, 3 cyl.
(1140cc) 2-stroke 1989-1996. 90 hp, 3 cyl. (1140cc) 2-stroke 1984-1996. 105 Jet, V6 (2596cc) 2-stroke 1996. 115 hp, V4 (1730cc) 2-stroke 1984-1996.
130 hp, V4 (1730cc) 2-stroke 1988-1996. 140 hp, V4 (1730cc) 2-stroke 1984-1996. 140 Jet, V6 (2596cc) 2-stroke 1987-1995. 150 hp, V6 (2596cc) 2-stroke 1984-1996. 175 hp, V6 (2596cc) 2-stroke 1984-1996.
200 hp, V6 (2596cc) 2-stroke 1984-1996. 220 hp, V6 (2596cc) 2-stroke 1984-1987. 225 hp, 76 deg. V6 (3130cc) 2-stroke 1994-1996. Jd 5400 service manual. 225 hp, 90 deg. V6 (2596cc) 2-stroke 1987-1996.
250 hp, V6 (3130cc) 2-stroke 1990-1996. Publisher: Seloc Marine. Binding: Paperback - 8.25 x 11 inches. Pages: Hundreds of photos and illustrations. ISBN: 647 Use the ' Buy Now' button at the top of this page to purchase the Yamaha Outboard Manual.
Re: Yamaha 6 hp 2 stroke 1986 model, oil mix ratio? I have a swedish boat magazine from June 1985 that says 100:1 for the 1985 6HP Yamaha. Also 100:1 for 1985 model of Yamaha, Mariner, Evinrude 5HP and Mariner, Johnson and Suzuki 6HP. 50:1 for the Tohatsu 5HP only.
I don't want to confuse anyone, but I can understand why your friend said 100:1. Your dealer can confirm the ratio. I belive the fuel tank and engine decal says 100:1 too. I would go for 50:1 anyway.
Why risk the powerhead for a few $ of oil a year? Edit: JB said in another 'Forget the 100:1 mix. OMC rescinded that almost immediately. Use 50:1 with 87 octane regular unleaded.'