2017 FXSB starting issues
- Thread starter Andrew2017fxsb
- Start date
Andrew2017fxsb
Member
Gym?! Careful, using dirty words here gets you reported
Though if I was worried about weight I could drop 70kg odd by telling my Mrs she can't come, but I don't like to live that dangerously.
I'll loose my weight in the bathroom.
dolt
Well-Known Member
It's a personal choice for sure but most of the quality Li batteries currently offered have built in Battery Management Systems that will prevent the type of failure your son experienced. I live in south Texas and the combined effect of high compression and heat will kill an AGM battery in a couple of years, even if kept on a tender pushed me to lithium. Nothing worse than having an AGM battery go south, without warning, on a hot July afternoon in the Texas hill country. Push starting a Harley is near impossible and jump starting is a PITA and you better not shut her down until you get home. Won't happen with my Anti Gravity lithium battery. I will never go back to lead acid batteries.
Andrew2017fxsb
Member
Ok, development.
So I've put a new lithium ion phosphate battery in there, found a tender charger that suits that battery (which took to much research and to many phone calls), started keeping it on charge now and all is well.
Thats all happened in the last couple days, yesterday I unplugged the charger (from a fully charged battery) to roll out out of the workshop to free up some space and left it outside for a couple hours. Then when I went to bring it back inside lo and behold it didn't start . I thought I must've buggered a new battery somehow, maybe by having the fob / key right next to it for several hours, rolled it the few metres back inside and went to grab a multimeter. Checked it and it was at 13.2v which is 100% state of charge for a lithium ion phosphate.. strange.. so I tried to start it and it started perfectly fine....
So now I'm thinking starter motor solenoid, are the solenoids a common failure point? Is there a sensor that detects of the starter motor is properly engaged and prevents it from cranking unless it is fully engaged? Does the ECU shut down the starter motor if it detects the solenoid, or the starter motor are drawing to much current or at the incorrect resistance? I don't think the motor itself has any issue, as it would be consistent, though a failing solenoid would be less consistent.
I'm pretty sure it's a very simple issue, that I think the ECU is hiding from me
Advice?
Not sure if this will help.
iThere are 2 relays in the fuse panel box IIRC. 1 starter, 1 system relay. They should have the same P/N on them. Just reverse them to see if starter works. There may be a 3rd. but I think it has a different P/N.
Do you have the manual for your scoot? Check all the fuzes and relays, may have a week or bad one.
iThere are 2 relays in the fuse panel box IIRC. 1 starter, 1 system relay. They should have the same P/N on them. Just reverse them to see if starter works. There may be a 3rd. but I think it has a different P/N.
Do you have the manual for your scoot? Check all the fuzes and relays, may have a week or bad one.
Andrew2017fxsb
Member
I do have a manual, I'll swap those two relays over next time I've got the seat off, definitely worth a shot.
Next time it fails on me I'll be very curious to put it in gear, rock it back and forward a little and then see if it'll start. Definitely feels to me like the starter is failing to engage and something from there stops it from even trying. Thanks Jeff, I'll update here once I do finally figure it out
gator508
Experienced Member
It's interesting that you mentioned having the fob next to the battery may have buggered it up. Trying putting a new battery in the fob, if it's going bad the bike won't start, it may be sputtering out thereby causing intermittent starting problems. Not saying that's the problem, but it's a very cheap fix if it is, and it needs to be changed every year anyway.
