Question about 2003 Harley Davidson FXSTD Softail Deuce

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Motor is hard to start. turns over fine. this problem started after i switched from 20x50 syn to 20x60 reg oil. could this be the problem? bike starts fine once warm.

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I don't think changing the oil type will have had an effect. Are the plugs OK and the gaps set OK?
Not a lot else you can do without a laptop for the ECU to increase the fuel when cold.
Mine is a 1976 Iron Head and that can be tempremental but everything is adjustable!
Ride safe.

Posted on Jan 01, 2011


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Are you certain you are not turning off the emergency shut off switch usually found on the right hand side of the handlebar thinking it is the headlight switch, are you? You don't mention the model nor year.

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It's safe to say that genuine Yamaha oil would be the safe sugestion.
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This is to say that car type oils are not designed spacifically for wet clutches & transmission lubrication which are major perameters when it comes to bike oils. This is also not to say that some high quality car oils would not work fine.

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