92 40 johnson warm start

krumka

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Aug 19, 2008
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6
My 40 hp johnson starts fine when cold but after using it and then sitting for a while boat won't start
 

tashasdaddy

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Nov 11, 2005
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51,019
Re: 92 40 johnson warm start

it won't turn over? it won't fire up and run? have you check spark, when this happens? have you check compression? i have a 93 40, never had a problem. when were your carbs last cleaned and rebuilt?
 

krumka

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Joined
Aug 19, 2008
Messages
6
Re: 92 40 johnson warm start

It won't engage the starter after sitting for awhile it usually starts again
 

tashasdaddy

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Nov 11, 2005
Messages
51,019
Re: 92 40 johnson warm start

90% of starter problems are bad connections. remove and clean both ends of the battery cables, so that they are shiney, also the cable from the solenoid to starter. check for nicks in the cables. and make sure the connectors are on the wire good. the cable tend to corrode from the inside out, if nicked, corroded wires, and connections, heat up and cause resistance to the follow of electricity, thus the starter doesn't get enough. you can also take jumper cable pos battery post to large post on starter. with a good connection, the engine should spin. then if the starter is good clean everything and retest. then trouble shoot solenoid. starters can be rebuit at a starter/alternator shop, much cheaper than a new one.

also have the battery load tested at the auto parts store, free, i've had new batteries go bad
 

krumka

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Joined
Aug 19, 2008
Messages
6
Re: 92 40 johnson warm start

thanks for the info one more question could the engine heat after running for a long time affect the starter or solenoid operation?
 
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