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  1. Rapson

    Help to read Model number

    I am looking at a couple of old Yamaha 4 stroke 9.9Hp outboards to fix up as a bit of a project but I cant seem to decode the model and serial numbers. I would like to know what year they are so I can find out the availability of parts. The numbers the owner has given me are 6G8 9.9AE...
  2. Rapson

    Steering nearly seized Advice pls

    I've got an old 1989 Yamaha 140Hp which has really stiff steering. I installed a new steering cable etc about a year ago. The problem is in the pivot on the motor itself. I pumo new grease into it and it comes out the bottom but not the top. Pretty sure the top is full of old hard grease causing...
  3. Rapson

    Temp and water pressure guages Yam 140hp

    I have an old 1987 Yamaha 140Hp that has some over heating issues. I would like to install a temp and water pressure guages to got to the root of the problem. Has anyone else done this to a similar model and can offer me any advice in finding the parts to do the job?
  4. Rapson

    What part number for a water pump kit for 1987 Yamaha 140Hp?

    I have a 1987 Yamaha 140Hp with serial number 140CET0 6F3 UL 751364. This model was only released in Australia so it is not listed in boats.net. I am looking for a water pump kit, can any one tell me if part number 6G5-W0078-A1-00 would suit, it is for the 150hp. As far as I know the 140 is...
  5. Rapson

    Removing Power Head 1987 Yamaha 140Hp

    I have found the bracket that holds the gear shift under the powerhead is broken so will be taking the powerhead off to replace it. Before I tackle it does anyone have any hints or tips to save me some pain?
  6. Rapson

    Yamaha 140Hp Overheating

    I have a Yamaha 2 Stroke 140HP 1987 Model that is overheating. When I cruise at over 4000rpm the buzzer will go off after a couple of minutes. I can cruise under that with no problems. A bit of history. I have owned the outboard for around 9 months. Had no thermostats in it so I installed some...
  7. Rapson

    Engine prob, carbs?

    I have a 1987 Yamaha 140Hp 2 Stroke with a intermitent engine prob. Starting out from the ramp go to full throttle with no probs. Get to fishing grounds and shut down for about an hour. Start the engine and get to about 1500rpm when engine starts to struggle, if i continue to push throttle it...
  8. Rapson

    Stuborn Prop

    Just bought an old 1989 Yamaha 140HP and I am having dificulty in getting the prop off. I have the nut and washer off but the prop is stuck fast. Any one got some hints or tips on how to get it off before I start bashing it and do some damage?
  9. Rapson

    Stiff Steering

    I recently purchased a boat with a 1989 Yamaha 140HP 2 Stroke. The steering was not up to scratch so I replaced the cable and helm unit but the steering is still extremly stiff. I have detached the cable from the motor and it is fine so I believe the problem is in the pivot. Can any one point...
  10. Rapson

    What year is this Yamaha?

    I am looking to buy a boat currently with an old Yamaha 140hp with the serial number 140CET 0 6F3 UL 751364. Can any one make any sense of that and work out a year it was made. Cheers.
  11. Rapson

    Outboard Casing Corrosion

    I am looking to buy a boat with a Yamaha 140hp 2 stroke attached. I believe it is late 80's or early 90's. The boat spent a lot of time in the water and has a fair amount of corrosin on the leg. As far as I can tell Yamaha had a paint issue around this time and the corrosion is only on the...
  12. Rapson

    Poppet Problem

    I have a 1987 Mercury 150Hp Black Max. I have just installed a new temperature gauge as the origonal has never worked since I have owned the boat. Took it for a run today and the temperature went straight up. Plenty of water from the tell tail, new impeller installed January and there are no...
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