[harleyy_rider22]

So, the other day I was driving in the mountains, and I decided to try to Jump Start the bike, not that the battery is bad, but just to do it as a second option in case I needed it one day ...

turned off the bike, then turned the key on... got my second gear pulling the clutch, once I reached a speed... i let go the clutch...

I heard the engine sound starting, then immediately dying

repeated all the above steps once again, and same result...

anybody knows why? and if there is some kind of security that eliminates jump starting, that I can disable some way... just in case the battery dies...

 

[Rokrover]

This is a “smart” bike with an ignition circuit cut-off system for so-called safety. The system reads the combination of three switches: sidestand, clutch and neutral.

From the owner’s manual, p.4-14: it prevents starting when the transmission is in gear and the clutch engaged after releasing the lever, so a hill start won’t work.

I’m sure there’s a way to fool it by setting the clutch switch to always disengaged, if you so desire. Might throw a trouble code though?

 

[flatrack]

Hmm, interesting, always wanted to try this myself. You sure kill switch was on? Pretty sure you would have checked that...could be there's some kind of security logic circuit by which the starter has to be engaged in order to start but that's just a guess. Who knows with today's security/safety standards anything is possible. Call me old school but for me that's part of the charm/appeal of vintage vehicles, not all the extra stuff... Man, it would really suck if we can't jump start our bikes anymore. I have a question sort of along the same lines, anyone know if the SCR's keys have FOBs in them?

 

[harleyy_rider22]

This is a “smart” bike with an ignition circuit cut-off system for so-called safety. The system reads the combination of three switches: sidestand, clutch and neutral.

From the owner’s manual, p.4-14: it prevents starting when the transmission is in gear and the clutch engaged after releasing the lever, so a hill start won’t work.

I’m sure there’s a way to fool it by setting the clutch switch to always disengaged, if you so desire. Might throw a trouble code though?

That is what I exactly thought... that it has some sort of security that prevents it from Jump Starting... and now you confirmed it... I will probably try to find a way to bypass that... can't live with a bike that I can't jump start it...

Hmm, interesting, always wanted to try this myself. You sure kill switch was on? Pretty sure you would have checked that...could be there's some kind of security logic circuit by which the starter has to be engaged in order to start but that's just a guess. Who knows with today's security/safety standards anything is possible. Call me old school but for me that's part of the charm/appeal of vintage vehicles, not all the extra stuff... Man, it would really suck if we can't jump start our bikes anymore. I have a question sort of along the same lines, anyone know if the SCR's keys have FOBs in them?

Yes I checked and the kill switch and it was off ... so the bike was good to go... I did it twice, making sure everything works and in a perfect shape...
Agree with you about that part of the charm of simplicity,.....

I wish if there was a way I can install a kick start... used to have that in another bike.. and even though it had both (kick and switch) I always used KICK...

 

[flatrack]

Sorry about that, I posted my previous reply not having seen Rokrover's reply...i guess we were typing at the same time lol.

 

[Back2dirt]

Boy, a "smart" bike. I always liked having the option of popping the clutch to start a bike just in case my battery died.

 

[flatrack]

Yes, I agree. Do you know if the SCR key has a chip inside of it?

 

[OpenRoad]

Is there any mention of what to do in the scr950 service manual if the battery dies since we can't jump start it?

 

[Rokrover]

Yep….. from the Troubleshooting chart in the manual p. 7-35 we find this most helpful remedy: “Have a Yamaha dealer charge the battery”

Not much help out in the boonies. Maybe pack a set of jumper cables and flag down a passing vehicle?

Meanwhile, the battery should last 3 ~ 4 years and give some warning like slow cranking before completely dying. Our SCR950 is still too fresh but those with 2014 Bolts are starting to report a few dead batteries. Best to stay on top of it with a trickle charger if stored for a while.

 

[Tangopapa22]

I actually jump started the bike a few weeks ago bc I left my aux lights on. Key in ignition, kickstand up, in gear, push, hop on and pop the clutch. Worked like a charm although I was really nervous about popping the clutch mid jump luckily i had someone helping me with the push