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+--- Thread: why wont my f4i start (/showthread.php?tid=36221)
why wont my f4i start - beardo - 08-13-2026
\r\n \r\n Is the tip sensor bypassed?\r\n
why wont my f4i start - my750 - 08-13-2026
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no sir. could that make this much of a problem? and how do i check if the ignition diode is good?\r\n
Quote:
\r\n | \r\n \r\n \r\n Originally Posted by beardo\r\n \r\n  \r\n Is the tip sensor bypassed? \r\n \r\n | \r\n
why wont my f4i start - beardo - 08-13-2026
\r\n \r\n Need to bypass the tip sensor first\r\n
why wont my f4i start - my750 - 08-13-2026
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im going to do that tomorow. where is that tos located? fuel pump is definantly good i jumped it tonight with a friend\r\n
Quote:
\r\n | \r\n \r\n \r\n Originally Posted by beardo\r\n \r\n \r\n Need to bypass the tip sensor first \r\n \r\n | \r\n
why wont my f4i start - beardo - 08-13-2026
\r\n \r\n If you have a headlights its mounted in the upper above the headlights. If not you can find it on the headlights harness.\r\n
why wont my f4i start - ReCkLeSsRyAn - 08-13-2026
\r\n \r\n Another stupid thing that coulda happened is u coulda plugged the ignition switch into the wrong black plug on the front of the wire harness.. It fits in both... That is if u disconnected it to clean p the wiring.. But it\'s most likely tip sensor... That is a must and the first thing I do to any of my bikes... That nutral safety switch and kick stand sensor..\r\n
why wont my f4i start - my750 - 08-13-2026
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if it was plugged into the wrong switch, it wouldnt turn over though right? the bike turns over but wont start because my fuel pump wont prime.\r\n
Quote:
\r\n | \r\n \r\n \r\n Originally Posted by ReCkLeSsRyAn\r\n \r\n \r\n Another stupid thing that coulda happened is u coulda plugged the ignition switch into the wrong black plug on the front of the wire harness.. It fits in both... That is if u disconnected it to clean p the wiring.. But it\'s most likely tip sensor... That is a must and the first thing I do to any of my bikes... That nutral safety switch and kick stand sensor.. \r\n \r\n | \r\n
why wont my f4i start - ReCkLeSsRyAn - 08-13-2026
\r\n \r\n No it will still turn over u will still have ur lights ect. Worth a try and it takes 2seconds\r\n
why wont my f4i start - ny450 - 08-13-2026
\r\n \r\n im having the same issue with my friends f4i,,,,dropped it fairly hard on the left side and hasnt ran since, tried sooo many different things and fuel pump still wont prime. fuel pump primes if jumped and have all lights/guages. cranks over same shit. idk what else to check other than taking the whole harness out\r\n
why wont my f4i start - beardo - 08-13-2026
\r\n \r\n Check the wires going into the fuel relays in the trunk.\r\n