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No start

3K views 14 replies 9 participants last post by  Dan89flstc 
#1 · (Edited)
05 Sportster 1200...parked for about 3 weeks..now cranks, but doesn't start...ran great when I parked it...confused...thanks

Update..got it running...fuel issue...thank you all for your input
 
#4 ·
Start with the simple stuff. Like Taxman said, check fuel supply.
 
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#5 ·
Just wanted to follow-up on first step diagnostics, FUEL, older bikes with vacuum actuated petcocks might get flaky with operation if the hose has degraded which might prevent fuel flowing from tank to carburetor.

Also loosen the filler cap to release possible vacuum lock if the cap vent is causing an issue with reliable fuel flow.

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If fuel flow is confirmed, check for spark, issues could be:
fuse, ignition module, fouled plugs, failed coil, failed crank position sensor.

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#7 ·
I have the exact same bike, year and all, and can firmly attest to this. The battery must be strong enough or it ain't starting.
 
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