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  1. J

    04 yamaha four stroke 150 hp heads

    motor turns over ( barely) i been thinking it was out of time. so i took off belt and found that the gear on both heads seized up .
  2. J

    04 yamaha four stroke 150 hp problem

    boat quit on water last week, now when i hit the key it turns slow like a weak battery and backfires and the low oil alarm goes off but it is full of oil.. is it out of time? or in safe mode or has oil pump gone out ?? any ideas thanks
  3. J

    2004 yamaha 150 four stroke backfires

    motor has always ran super with no problems now when i hit the key it drags slow and when it his it backfires loud had it out on the water 2 days ago when it got hot and started loosing rpm's so i shut it off and broiught it home after it cooled down was when i noticed the back fire when...
  4. J

    2006 yamaha 150 for stroke quit running

    have ran boat for the past 2 days and it ran perfect as all ways took boat out tonite got it up on plane and about 5000 rpms and it cut back to 3000 and sputtered and then took back off. so i shut off motor and smoke was coming from under cowl ,, hit the key and it barley turns over. oil is...
  5. J

    3 h.p yamaha

    my little 3 hp yamaha has lost its get up .. it dont wanna excelerate to well lately.. gas is good plug is good carb is clean , it has the lilttle fule pump built in the side of it ... Does it have a diaaphram in there? and could that be the culprit ? (if it is dried out)...
  6. J

    merc 470 starting issue/ no fire

    :confused:merc 470 i replaced starter with new one now boat no start not geting fire to coil wire and also should neg side of coil be hot as well as pos side ? i belive i have solinode hopoked up right S post going to key switch and r side going to hot side of coil.. thanks :confused:
  7. J

    470 line up to out drive

    ok i got the engine coupler back on [thank guys for help on that]:D now my question is how serious is my line up putting the motor back i dont want this to happen again by misalinment :eek: if i bolt back up to back mounts and center front of motor to back of motor and then level motor using...
  8. J

    dont know what happened / 470 merc

    today i had my boat out, [18 foot open bow/470 merc] boat was running great and just quit pulling, motor reved up and smell of hot or bunt grease or maybe rubber and smoke came from dog house. when i got it home i pulled out drive and it works fine[when i turn prop drive shaft turns] i guess...
  9. J

    mercruser 470 outdrive

    hi i need to know what waterpump i need for my outdrive s/n is 6785792 also has 1.84 r on it im not even sure what drive it is the 470 runs good so far but i am rebuilding it and the outdrive this spring any info would be great thanks joe
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