Welp, It Happened…Bike No Start While Out

Jay said:

Circling back on this. Yes, it was a wiring issue. The power cable attaches to the starter selinoid through a protective shroud. The angle of the wire coming in was kinking in the shroud and broke. The dealer replaced the wiring and cut a telief in the shroud. I haven’t had time to look at the repair, but 1500miles and no issues. So foxed for now and I have another area to check if I have trouble starting in the future. Just like the old Triumph cars, these bikes have character.

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Jay said:

Had to humble myself and roll into Triumph service while out on a ride and leave the bike there. Was out for a Saturday ride running errands through the valley. Had the dreaded no start despite key being detected, TFT on, kick-stand up, Neutral, hearing the fuel pump, clutch in and nothing. Quick trouble shoot, check clutch switch position and kick stand, nothing obvious. So I bump start the bike, which worked and I was on my way to another appointment. Same thing second time. This time I am with one of my mechanics, local racer and builds track bikes. So more troubleshooting, check battery charge, fiddle with clutch sensor and kick stand sensor, but nothing. Fortunately on a hill again and bump start. Strange. Was within 5 miles of Triumph dealer and decide best to head straight there. Service manager comes up to me and I explain the woes of the day after shutting off the bike. Bike starts right up in front of him, so I explain it was likely his presence intimidated the bike into complying. I decide to let the bike sit and cool off while I see if there is any Triumph gear I “need.” About 20 min later return to the bike and same symptoms…no start. Additional troubleshooting with the lead tech, including replacing the battery in the fob, additional fiddling with clutch sensor, and checking/cleaning battery leads; still no start. I was trying everything shared here on previous no start threads. So we determined it must be a sensor going bad and I checked the bike into service. Wondering if there is something with the starter relay. Hopefully the scan tool can confirm signals on the CAN and rule out things quick.

Funny thing is, I had this happen a couple times earlier this year and jumped the bike thinking maybe my trickle charger wasn’t working. Replaced that and no issues, but I was worried something might happen while out on my 2,500 mile ride a couple weeks back. A full week riding every day with multiple starts between tourist traps and no issues. Best it happened so close to one of the best Triumph dealers in the area…what luck.

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papanorm said:

I stopped for a water break the other day and the bike wouldn't restart. I pulled the fob out of my pocket and turned it back on and the bike fired right up. Not sure why the fob turned off. Glad I carry a spare key too, just in case.

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lotus said:

Jay,
Could you share a pic of the crimp site? My bike has 27K miles and no issues, so far. Your issue is my worst nightmare.
I also have a 2009 Bonneville that had the same issue a couple years ago. One day, I was sitting at a stop light and happened to turn the
handlebar for some reason and the bike died. Hmm, maybe this is a wiring issue in the main loom between the handlebar
and frame? Luckily, the bike started and got it home. Got out the schematic and VOM and discovered the problem (see pics).
The bike was assembled in Malaysia and it was a wiring loom production screw up. There were three wires inside the main loom
that were cut by a knife. One green wire had finally fractured after moving back and forth over the years. Repaired all three wires
and haven't any more problems since then.
After this experience, whenever I'm working on a bike, I always inspect the wiring for tightness across sharp edges, routing, squeeze points
etc.
On an unrelated note, I hate Triumph's implementation of their key FOB on this bike. I could go on for 10 minutes about the trials and tribulations
I've been through in understanding the sensitives and weaknesses of their implementation. A FOB you have to turn on and Off? Come on
What was wrong with a mechanical key?

With that all said, I do love their bikes.

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sunny said:

you replaced trickle charger or battery? did you perform a CCA test with a decent battery tester? was your battery ever allowed to be discharged?

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