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    Vf250 Yamaha hot at idle

    Does the Vf 250 model have a pressure relief valve? And where is it located?
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    Vf250 Yamaha hot at idle

    Does the vf250 have a pressure relief valve for cooling water? Where is it located? Thanks Martin:thumb up2::thumb up2:
  3. Thread: 20hp question?

    by mcyama
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    No man, go for it. Over here we have Ethanol to...

    No man, go for it. Over here we have Ethanol to deal with. Which is great for business! Thanks Martin
  4. Thread: 20hp question?

    by mcyama
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    There will always be fuel leftover in the vapor...

    There will always be fuel leftover in the vapor separator. Thanks Martin
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    I have units that are not even 5 years old that...

    I have units that are not even 5 years old that mimic my yard sprinkler. Although they are commerical use. And have at least 1000 hours.
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    EPA bull bulbs, you should very seldom every have...

    EPA bull bulbs, you should very seldom every have to use primer. unit has an electric lift pump. Grease ends of trim rams.
  7. Honda outboard performance parts and automobile motor equivlent.

    Looking for oversize pistons and rings for a BF150AKO that are NOT avaible from marine division. Parts almost certainly come from automotive division. Does anyone know which motor the internal...
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    Yea, unit has serious corrosion issues. There was...

    Yea, unit has serious corrosion issues. There was a ongoing class action lawsuit against Yamaha being advertised in Louisiana Sportsman magazine several months back.
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    Very good motor. Clean injectors. Thanks Martin

    Very good motor. Clean injectors. Thanks Martin
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    Do not run car oil in your marine motor! Thrust...

    Do not run car oil in your marine motor! Thrust bearing failure is certain, not today or tomorrow however it's only a matter of time. Wow, how can a oil engineered for a 2000-23000 rpm motor be as...
  11. Thread: Loosing power

    by mcyama
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    Remove wing nuts at cranking battery and throw...

    Remove wing nuts at cranking battery and throw away. Clean battery connections. Replace with nylon locking hex head nuts. Have your tech. install on diagnostic computer. Thanks Martin
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    Drop gearcase and use flash lite Thanks Martin

    Drop gearcase and use flash lite Thanks Martin
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    Yes, the tuner. Well, it can be very easy if,...

    Yes, the tuner. Well, it can be very easy if, twin power poles, three batteries,50 gallons of gasoline, 25 pound oil injection tank,jack plate /set back. The outlet end of the exhaust tuner is under...
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    Exhaust pipe is either burnt off or is under...

    Exhaust pipe is either burnt off or is under water when trying to get on plane.Thanks Martin
  15. Thread: 2007 225 hpdi

    by mcyama
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    Review computer diagnostics again, sure sound's...

    Review computer diagnostics again, sure sound's like fuel pressure regulator to me. Thank's Martin
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    What concern's me is the fact that it did not...

    What concern's me is the fact that it did not restart intially after it shut off. So did it seize or lock up at 5000 rpm? Thanks Martin
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    Well, to avoid a $10,000.00 repair bill I could...

    Well, to avoid a $10,000.00 repair bill I could put up with an extremely low increase in dba. Thanks Martin
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    YES,YES,AND YES. Suzuki and Honda have a nearly...

    YES,YES,AND YES. Suzuki and Honda have a nearly identical balancer configuration in their big I4 models using metal gears and or chains with no failures. What get's to me, it's bad enough to have a...
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    Good luck, do whatever it takes not to impact...

    Good luck, do whatever it takes not to impact anything. Balancer failure is still common to this I4 model. Latest failure had 256 hours on unit. Yamaha blames power unit failure on impact. Driven...
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    Bring to dealer and run diagnostic program. Check...

    Bring to dealer and run diagnostic program. Check for fuel pressure fault. Thanks Martin
  21. Thread: Upgrading

    by mcyama
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    If you want a direct injection two stroke you may...

    If you want a direct injection two stroke you may want to look at the Mercury optimax product also. They are very nice and fast.Thanks Martin
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    Not good. Balancer failure are way to common in...

    Not good. Balancer failure are way to common in that model. Lets hope for something else. Are you getting any alarms or RPM reduction? Any new vibration? Have your dealer cut the oil filter open and...
  23. Thread: SHO vs XS mpg

    by mcyama
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    All indications and reports I am getting from...

    All indications and reports I am getting from commerical customers is that the Mercury Optimax 3.0 litre have a significant fuel savings over similar 4 stroke models.Thanks Martin
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    Charlie206 has the answer. I would want to verify...

    Charlie206 has the answer. I would want to verify if unit is getting hot. If you can, shoot engine crankcase with temp gun, near and under fly wheel by temp sensor.If you are a tec. Or old school and...
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    Well sounds like you are getting some great help....

    Well sounds like you are getting some great help. I would go in a different direction. Sounds to me like the high speed stator coil is going to an open circuit once it has heated up. It may be hard...
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