Yamaha 225hp 2str Crank Position Sensor test

[FrenchFry]

Re: Yamaha 225hp 2str Crank Position Sensor test

I am about sure that the whole problem is that the computer enters in security mode, sometimes while starting it quickly (ie turning the key quickly) when it's hot I saw the RPM, then it goes off, there should not be 1000 things that say to the computer that something is wrong, we can not have a list so I can test one by one ?

 

[rodbolt]

Re: Yamaha 225hp 2str Crank Position Sensor test

can you start a new thread?
post the problems your having at this point in time.
the old pics dissapeared and my memory gets fuzzy.

 

[FrenchFry]

Re: Yamaha 225hp 2str Crank Position Sensor test

I did post a new thread some time ago but prefer to reply on this one and close it.

I think everything is solved now, everything is working even what never worked before, for those that have cascading problems like I add and/or unlogical behaviours with a motor not so young, then it can help a lot to check the complete electrical system, and replace it, might look obvious but it took me some time to reach this conclusion.

In my case even if the elecrical system looked fine, it had plenty of misconnections and shortcut, mainly in the harness from the remote control that I replaced and in the main connector to the computer, bottom part.

I used the service manual too, good to have, thanks to Rodbolt and this cool forum, it helped a lot all the threads I could read to find at last the solution, probably I could be of some help if someone has problems with the same motor.