Just rebuilt most of a 2 stroke jet boat. ( if you need / want any boat details, see: this thread )
First day the boat started fine, no problems, next day I tried again and the CDI fuse had blown ( see this this thread for details )
Yesterday, day two, I replace the fuse with the same rating. She fired up nice.
Today, day three, The new fuse is blown again.. I go thru, very carefully, and check for any visible wire, I found a few, wrapped wrap them in electrical tape and cleaned all the major terminals. I installed a new fuse and now I don't even get any power to the starter.
What should I check next?
*A similar wire diagram can be found here, on page 26 if it will help.
I opened up the CDI box and determined that the starter relay never powers the starter motor.
There is a brown wire that comes from the ignition, when the key is in the "on" position this brown wire gives 12.6v to the starter relay, when I try to start the engine, the brown wire only supplies ~8ish volts to the starter relay, there is also a black wire the goes to the starter relay...
Can some one let me know how / what to test next?
Would be safe to detach the signal wire and connect that terminal to the input terminal?
If no power goes to the starter would this confirm that the relay is bad?
I have confirmed that the starter relay and starter motor are working fine.
I believe I have narrowed down my possibilities to either the ignition itself or the safety laynard. As mentioned turning the key is to "on" is only putting out 8ish volt ( via the brown wire ), maybe the safety laynard is what is causing this drop?
The white wire comes from the safety laynard, connects to the ignition and then goes directly to the CDI Unit.
The black wire comes from the safety laynard, connects to the ignition and then goes to the CDI box ground.
How do I test my safety laynard to determine if it is the problem?