Battery connection to Merc 90

[AndrewH]

I'm just in the process of connecting a 2003 Merc 90 2-Stroke to a rib that I'm doing up and have just go around to connecting the supply leads from the battery. The positive supply is easy - straight to the solenoid, but there are number of possible points that all seem well connected to earth for connection to the black (return) lead.

Is there any preference/convention which point should be used?

If anyone has a photo of how a similar engine has been wired I'd be really grateful

Thanks in advance

[Chris]

There is normally a 6mm bolt into the actual block this would be quite near the positive connection.

[Nos4r2]

Originally Posted by AndrewH

I'm just in the process of connecting a 2003 Merc 90 2-Stroke to a rib that I'm doing up and have just go around to connecting the supply leads from the battery. The positive supply is easy - straight to the solenoid, but there are number of possible points that all seem well connected to earth for connection to the black (return) lead.

Is there any preference/convention which point should be used?

If anyone has a photo of how a similar engine has been wired I'd be really grateful

Thanks in advance

The clamp holding the starter motor on is where the negative used to be fitted on the older ones. Makes sense as it's the closest point to the highest power use component.

[AndrewH]

Thanks Nos and Chris

I've opted to use the clamp on the bottom of the starter as this goes straight into the block so should be a good safe grounding point.

Cheers guys