Hard starting Yanmar 2GM - solution found!

malyea

.
Dec 15, 2009
236
'87 Irwin 43 Sea Breeze
The Yanmar in my '82 H30 had gotten to where it took 8 -12 pushes on the start button to turn over with charged batteries.

Research on this site had me tracing the ignition wiring looking for a metal wiring connector to clean/WD40 to improve conductivity ....

What I found was a 30A inline fuse that was a bit loose in the metal connectors at either end of the fuse (see photo).

A few swipes with emory paper, snugged up the metal to metal connection and wrapped with new electrical tape - and eureka - 'Bout Time now starts first time every time!

Why would someone want a 30A fuse in the ignition wiring? Does anyone else have this same fuse setup?
 

Attachments

Sep 15, 2009
6,243
S2 9.2a Fairhope Al
The Yanmar in my '82 H30 had gotten to where it took 8 -12 pushes on the start button to turn over with charged batteries.

Research on this site had me tracing the ignition wiring looking for a metal wiring connector to clean/WD40 to improve conductivity ....

What I found was a 30A inline fuse that was a bit loose in the metal connectors at either end of the fuse (see photo).

A few swipes with emory paper, snugged up the metal to metal connection and wrapped with new electrical tape - and eureka - 'Bout Time now starts first time every time!

Why would someone want a 30A fuse in the ignition wiring? Does anyone else have this same fuse setup?
on yanmars we all do ...the fuse is to protect the wiring
 
Nov 6, 2006
10,095
Hunter 34 Mandeville Louisiana
Yanmar Fuse

Yep.. like Woody says, that fuse is in the wire that feeds the instrument panel;it protects all the wiring to and from the panel. It should have a little green plastic cover over it as in attached..
 

Attachments

malyea

.
Dec 15, 2009
236
'87 Irwin 43 Sea Breeze
Thanks, now I need to go find one of those green covers!
 

malyea

.
Dec 15, 2009
236
'87 Irwin 43 Sea Breeze
Thanks for the link. Is 30A the correct size fuse for Yanmar ignition wiring? That's what was in place but ....... just checking.
 
Sep 15, 2009
6,243
S2 9.2a Fairhope Al
Thanks for the link. Is 30A the correct size fuse for Yanmar ignition wiring? That's what was in place but ....... just checking.
yes it is it is on a #10 wire and that wire is rated for 30 amps