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  1. M

    Yami 225 stroke to yami 225 4 stroke rigging?

    Hey guys , happy new year! Well just purchased a 2003 F255 w/ 400 hrs on it. I am going to be rigging it my self and was wondering what is needed to go from my 2 stroker to 4 stroker as far as controls, guages, wire harness? I currently have single control, no PS, and a digital combo gauge.
  2. M

    2 stoke to 4 stroke rigging whats invloved?

    Thinking of buying a used F225. was wondering what has to be changed as far a rigging and controls to go from a 2 stroke 225? and where can I buy the rigging ?
  3. M

    Winky Blinky?/?

    Can someone give me a run down on how to use a Winky Blinky? My local dealer is going to lend me one this weekend so I can maybe Finaly figure out what the @#$%^&* is wrong with my motor?
  4. M

    VST Tank Float level ?

    Wondering how to check that the float level in the VST tank and what effects a improper setting be? Could not find it in the service manual.
  5. M

    At The End of MY Rope!!!!!!!!!!

    Well if any of you where following my posts on Help with Injectors. I have been having a low rpm 1998 225EFI running really rough below 2k rpm the whole boat shakes! I have tried almost everything and do not know what else to do. Here is a list of what I have done. 1) Removed all fuel...
  6. M

    Fuel injector cleaner additive in 2 stroke ?????

    Is it poss to use fuel injector cleaner in 2 strokes outboard
  7. M

    Help!!!!!!! Need to test fuel injectors !!!!!

    Can any one tell me how to test fuel injectors on a Yamaha EFI 225. Think I have pos bad one......
  8. M

    Testing Fuel injectors on 225 EFI (how to)

    I have been having low rpm rough running cond, brought it to the dealer service after I tried all I could after finding out that when I pulled off cyl #3 & #4 I get no drop in rpm. all comp tested fine in very cylinder. The dealer took off all the injector screens said that I might have a sticky...
  9. M

    EFI 225 what 2 cylinders are not used at low rpm?

    I am having trouble with my 225EFI as you can see form my other posts. runs rough and missing at low rpm 600-1400. today I was pulling spark plugs wires while idling to see if I could find a bad cylinder and two of them seemed to have no spark and did not effect the rpms at all when pulled? I...
  10. M

    Home made o2 sensor harness?

    Is there a way to test the voltage of the O2 sensor with out buying the yamaha one. I remember seeing a post on a home made one but can not find it.
  11. M

    Help Please, before it goes to dealer service !!!!!

    My 98 225 EFI is running rough the whole boat shakes at 900-1300 rpm. There is no problem starting, running at cruising speed.This all seemed to start happening when I took off the O2 sensor to check the condition of the o2 rod that goes into the cyl head. I know they are prone to getting...
  12. M

    225 EFi low rpm rough running Help!!!

    My 98 225 EFI is running rough the whole boat shakes at 900-1300 rpm. There is no problem starting, running at cruising speed.This all seemed to start happening when I took off the O2 sensor to check the condition of the o2 rod that goes into the cyl head. I know they are prone to getting...
  13. M

    O2 sensor test help ?

    I have a 98 225 EFI , I have been cleaning the 02 sensor and the small rod that goes in to the exhuast chamber on a regular basis. I just took it off the other day to check and see if there was any carbon build up and it was fine. reinstalled the sensor and know at low rpm she shakes and runs...
  14. M

    O2 sensor test help ?

    I have a 98 225 EFI , I have been cleaning the 02 sensor and the small rod that goes in to the exhuast chamber on a regular basis. I just took it off the other day to check and see if there was any carbon build up and it was fine. reinstalled the sensor and know at low rpm she shakes and runs...
  15. M

    Throttling up motor dies.........

    Throttling up motor dies......... 2000 150hp , Runs good other wise. any clue? carbs?
  16. M

    2000 150hp boggs down when put in gear.....

    my 2000 150hp runs good idles fine purs at cruising speed but when going from idle into gear (R or F) it boggs down and have to give it lots of throttle to get it past what seems to be a dead spot. could this be clogged jets or needle valves. Ran it out of gas last year and ever since then this...
  17. M

    2000 150hp fuse no volt charge ?

    Hi Guys! Have a friend with a 2000 150hp. the main 20amp fuse blew had no power to the motor. replaced the fuse, she started up ran fine but now have no tach and no charge the batts they went dead could not turn over the motor. I am thinking the rectifier blew out? but why? something made the...
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