Bike engine will not turn over. Help!

[vrijesh]

Hello All,

My bike was fine when I parked it in my garage a few days back (about a week), and now it won't start. At first I thought it was the battery (just a year old). So I charged it up, and tried to start it - No luck.. I see the Err-1 flash. So I hooked it to the car battery (car turned off).in case my bike battery had some weird problem discharging too fast. And I can hear the engine trying to turn over repeatedly with no luck. I have added a couple of videos of it trying to start with the battery and the jump.

Any thoughts on what is going on and what I can check?

Battery Start - [video=youtube_share;Fm80MK_VmcI]https://youtu.be/Fm80MK_VmcI[/video]
Car Jump Start - [video=youtube_share;T-P9ZjCWEcY]https://youtu.be/T-P9ZjCWEcY[/video]

 

[Motogiro]

It seems you have a big voltage drop when the starter is engaged. The system is failing to start because is this large voltage drop. I can see the readout going blank which means you are either pulling to much current through the starter or you have a bad connection or bad wire from the supply. The other factor could be you have a bad battery and you have too much voltage drop through 2 sets of jumper cables. Always check wiring at the battery and starter relay to insure a poor contact is not the fault.

 

[vrijesh]

Yes, the contacts are what I checked first, and they were good. So I proceeded to charge the battery up overnight. What I am seeing (battery or jump) is a sharp fall in battery voltage to less than 9V when the engine tries to turn over. I will check the starter relay today. Hopefully its just some connection loose somewhere, and if anything broken, it is the starter relay - Amazon is selling them for cheap ($12).

https://www.amazon.com/Starter-Solenoid-Yamaha-Motorcycle-2006-2008/dp/B008K7Z050

 

[TownsendsFJR1300]

You can also run your jumper cables DIRECT to the STARTER (ground to frame) to make sure the starter itself is good.

With a fully charged car battery, it should spin over quickly/normally...

 

[vrijesh]

Thank you all.. Before delving to deep, I figured I'd get a new battery to rule out any funky-ness with the existing battery... and she started right up with the new battery!! The one that went bad was an AGM battery just over a year old and with only about 1500 miles on it :jawdrop:.. and went past its 1-yr warranty this past April :shakehead:.. maybe I just got a bad battery!

Anyways thank you all for your advise and pointers.. I've noted them down if I need them for future reference. Much appreciated!!

 

[TownsendsFJR1300]

Glad it was an easy fix...

Curious, what brand battery WAS in there?

 

[vrijesh]

Me too!

This is the one I had in there - https://www.batteriesplus.com/battery/motorcycle/yamaha/fz6/600cc/2006/cyla12bbsxta
Xtreme AGM Battery 12B-BS