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motor dies

Turk55

Turk55

Active Member
I have a 09 SG that has been updated to 107" (10.5 comp, S&S 585G cams, ported heads, Power Commander V) I am having an intermitting problem, sometimes when I get into it hard the motor will just dye, not to the point where I have to restart it, just let off the throttle and it takes off. It doesn't do this every time but seems to be happing more offend. Before you ask, it isn't the rev limiter I am hitting, this seems to happen round 3000 rpm or so, and only when I twist the throttle hard. :newsmile040:
 
Check to see if Power Commander is securely attached to bike and that the wires are not being compromised when the motor twists on hard throttle. Are you getting a check engine light?? And yes you are correct about rev limiter it kicks in around 5,500 RPM.
 
It sounds like an electrical issue as dbmg states. If you want to make double sure it's not the Power Commander, try taking it off and see if it still does it as it sounds like you can reproduce the issue.
 
I give it a try next chance I get to ride and let ya know, thanks for the info. By the way it isn't thronging any codes.
 
You probably do not want to spend a bunch of time running it that lean but just enough to check out the PC.
 
Discounting power commander made no change but did find that air filter and air censer in throttle body covered with oil and after cleaning it all's good that is until it got covered again. Thinking even though I run 1/2 quart less oil it still messing things up, what ya think about losing the hoses that run from heads to filter and replace them with independent filters?
 
Turk55 said:
Discounting power commander made no change but did find that air filter and air censer in throttle body covered with oil and after cleaning it all's good that is until it got covered again. Thinking even though I run 1/2 quart less oil it still messing things up, what ya think about losing the hoses that run from heads to filter and replace them with independent filters?
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Harley Davidson Sportster crankcase head breathers system DK Custom

Here is a set up for ALL TC motors, similar in design to the Evo venting system
 
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