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  1. kvan64

    Yamaha 40HP propeller

    My Yamaha aluminium propeller says 11 1/8 x 13 What are these measurements for? Will the 10 x 13 size be used with this motor? (I just saw a cheap SS one comes up from eBay) Thanks
  2. kvan64

    What is a CV motor?

    The guy that serviced my motor last time said it is a CV motor. What does it stand for? Thanks
  3. kvan64

    Impeller replacement - where to start?

    Hi, my boat ran to shallow sand/rocky bar yesterday (at low speed). I quickly moved it out and it ran with good tale-tell/peeing water for the rest of the afternoon. I took it home and flushed it with fresh water on the muffs and it peed quite well too. I tried it again today and it didn't pee...
  4. kvan64

    Size does matter when bar-crossing?

    With my 14 feet Ally Craft and 40HP, according to some people, I don't seem to have a chance go reef fishing and I should have learned this before buying my first boat :( Yet hope is still there when I heard that people do cross bar ok with that size and power. Could any pro. here confirm this...
  5. kvan64

    Can't find a correct service manual!!!

    Hi, my my Australian model Yamaha 40HP 2006 has a serial number as follow: 40XWT 66TK L 1302062 The "owner's manual" also provides another set of serial number: 66T-28199-27 I have spent some money on various (US models) of service manuals on eBay but couldn't find a match/close match to my...
  6. kvan64

    Harder to start in water!!!

    Hi, My Yamaha 40 HP 2006 model starts 1st time everytime on muffs. However, I often have to try more than a few chokes before it could start when in water (at cold start) I just changed the spark plugs, cleaned the fuel filter and changed the gear oil.
  7. kvan64

    Never too much oil?

    Hi, the owner's manual of my 40HP 2006 2stroke Yamaha recommended a 100:1 mix after the break-in period. My backyard mechanic neighbor recommended 50:1 and also remarked:"Never too much oil. It protects your motor. Just change the spark plug more often". What do you think? Also is it ok for...
  8. kvan64

    Spare petrol tank is spilling!!!

    Hi, I just bought a second hand boat (2006 model). I have 2 plastic petrol tanks. The spare one is not hooked in and the petrol is spilling out from the unhook plug. Almost half of the tank (25L) ended up 0n the floor and in the hull which destroyed the inner paint of the alluminium hull. Is...
  9. kvan64

    Noise when changing gear - Just change gear oil

    Hi, I just bought my boat with a 2006 Yamaha 2 stroke. I just change the gear oil (as per instructions from the user manual). I noticed that the magnetic screw on the bottom has some very fine dark metal dust attached to it. I didn't pay attention to the noise before but after changing the gear...
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