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  1. 9

    Can't find hyd steering to fit 87 115 yamaha

    Every hydraulic steering setup for yamaha doesn't include 80's model 115 hp 2 strokes. What's the deal? Did something on the motor change in 1990? That's where they pick up. If someone has experience let me know. Do I need a adapter bracket? I'm looking for entry level price. Baystar part number...
  2. 9

    Question: 115 / 130 V4 yamaha 2 stroke carburator adjustments

    My clymer Manual is difficult to use! The basic carb adjustments are just a rpm value. Idle = 700-800 rpm ; trolling = 600-700 rpm; and WOT = 4500-5500 rpm. It also gives a timing degree for 115hp = 25 degrees +/- 1 degree BTDC at wide open throttle and 130hp = 23 degrees at WOT +/- 1 BTDC. Idle...
  3. 9

    could a faulty charge coil/stator cause 2 of 4 cyl to not work?

    1987 v4 115 yamaha 2 stroke. cyl 1 and 3 not firing and 2 and 4 are. swapped wires going into the ignition coils on working to nonworking ingition coils and the 2 nonworking ign coils began working. the ohms on the stator/charge coil were way off. Could a bad stator caouse 2 cyl to not fire?
  4. 9

    115 v4 yamaha no spark 1&3 cyl but both ignition coils are good?

    my 1987 yamaha 2 stroke 115 hp v4 is only running on cyl numbers 2 and 4 numbers 1 and 3 are not firing. (I put a timing light on all four to find this out.) I swapped the wires that excite the coils with 1 and 2 and the coil for cyl #1 fires fine. So what do I need to check 1st to see why there...
  5. 9

    how to disconnect 1987 yamaha 115 2 stroke oil injection system and what mixture?

    I disconnected the rod going from the carb to the injection pump. I plugged the oil lines going to the manifold. 1.What should I do now? do the wires coming from the oil reserve tank have to be connected for the engine to run? 2.Should I disconnect the tank and remove it? 3.What mixture of oil...
  6. 9

    1987 yamaha 115 2 stroke oil injection test or disconect?

    My manual doesnt describe how to test the oil injection system. How do I test it and if I want to disconnect it what ratio oil do i mix in the gas tank 50:1 or 100:1 ?
  7. 9

    1987 yamaha 115 2 stroke carb rebuild tips and tach advise

    I bought a repair manual by clymer. It is not very specific about factory adjustments after the rebuild. It Gives the initial idle screw adjustments for V6 but not for the V4 115 and 130 hp. all the adjustments are by rpm. Is there any presets to start with on the carb and what is the cheapest...
  8. 9

    lost yamaha ignition key ? how to tell which one to order

    I bought a 115 yamaha 2 stroke 1987 model the original owner didn't know where the key was. I looked on the sight there must be 10 different keys there. how can i tell which one to order?
  9. 9

    1987 yamaha 115 2 stroke sat unused 18 years what to do/change?

    I just bought a yamaha 115 2 stroke from 1987. It sat in a field unused for around 18 years. under the hood looks brand new except for the dirt diver nests. The fly wheel moves by hand. Besides rebuilding the carbs and water pump is there anything that should be changed? Things like 1. engine...
  10. 9

    suzuki DT4 won't pee please help????

    The motor wouldn't pee on our last outing. We took the lower unit off and the water pump was toast. We replaced the water pump and the motor still won't pee. There seems to be exhaust gas coming out of the water exit hole. Does this meen that there is a busted gasket or a hole between the...
  11. 9

    25 johnson 1990 idle/running troubles tried everything I can please help

    1990 25hp johnson J25RESB. From the beginning- motor began to run poorly after sitting up for a couple of months. I rebuilt the carb like I have done before, but without the aid of a mechanic friend I used to have. The carb was dirty and needed to be rebuilt. After the rebuild motor still ran...
  12. 9

    1990 25 johnson stall at high speed?????

    the motor was stalling out at high speeds and it just kept getting worse and worse till it was hard to idle. I put new plugs in it and rebuilt the carb. I still have the problem, it got a little better after the rebuild though. any suggestions?
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