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Author Topic:   130 Yamaha starter

STEPUP RACING posted 10-27-2005 05:08 PM ET (US)
Hey guys,
130 hp Yamaha won't start from the key ignition and when I try to jump the selenoid the starter will spin but not engage the flywheel. When I say spin, it only turns a couple of hundred RPM.
I know the batteries on this "new to me" boat have been sitting outside for the past 4 plus years. I charged them up and believe I have a full charge but the starter just won't spool up. I don't have a load tester for the batteries either...
Any ideas??

Thanks!!
Ronnie
jimh posted 10-27-2005 05:18 PM ET (US)
Check all of the connections in the high-current path from battery to starter motor. It does not take much resistance in a connection to cause a big voltage drop in a high-current circuit.
STEPUP RACING posted 10-28-2005 08:02 AM ET (US)
Thanks for the help guys! Jim, I did what you said and again cleaned all of the connections. I traced and retraced all the routing of cables. I was still getting 12 volts to the starter but still nothing...I then did a search here on the forum and took someones advise and go with new battery from Wallyworld. Bada bing! I had them do a load test on the old batteries and they found that the batteries were indeed putting out 12 volts but just about 0 amps. So, $59.85 later I head home and do a quick install and VAROOM, the engine barks back to life, engine gauges come back online and all of the nav lights are bright as can be. YeeHaw!
I guess the moral of the story is...12 volts is nothing unless you have the amperage to push it.
Thanks again for the assist boys!

Ronnie
jimh posted 10-28-2005 08:57 AM ET (US)
Thanks for the follow-up. Yes, the first thing to check in any electrical system that runs on battery power is the battery itself.

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Author	Topic: 130 Yamaha starter
STEPUP RACING	posted 10-27-2005 05:08 PM ET (US) Hey guys, 130 hp Yamaha won't start from the key ignition and when I try to jump the selenoid the starter will spin but not engage the flywheel. When I say spin, it only turns a couple of hundred RPM. I know the batteries on this "new to me" boat have been sitting outside for the past 4 plus years. I charged them up and believe I have a full charge but the starter just won't spool up. I don't have a load tester for the batteries either... Any ideas?? Thanks!! Ronnie
jimh	posted 10-27-2005 05:18 PM ET (US) Check all of the connections in the high-current path from battery to starter motor. It does not take much resistance in a connection to cause a big voltage drop in a high-current circuit.
STEPUP RACING	posted 10-28-2005 08:02 AM ET (US) Thanks for the help guys! Jim, I did what you said and again cleaned all of the connections. I traced and retraced all the routing of cables. I was still getting 12 volts to the starter but still nothing...I then did a search here on the forum and took someones advise and go with new battery from Wallyworld. Bada bing! I had them do a load test on the old batteries and they found that the batteries were indeed putting out 12 volts but just about 0 amps. So, $59.85 later I head home and do a quick install and VAROOM, the engine barks back to life, engine gauges come back online and all of the nav lights are bright as can be. YeeHaw! I guess the moral of the story is...12 volts is nothing unless you have the amperage to push it. Thanks again for the assist boys! Ronnie
jimh	posted 10-28-2005 08:57 AM ET (US) Thanks for the follow-up. Yes, the first thing to check in any electrical system that runs on battery power is the battery itself.