Triumph Street Triple 2012 wont start

[Craftsmen28]

Ok, bear with me...

Tried to start the triumph street triple a few weekends ago (had been in the garage on trickle charge for 3 months) and all good up until pressing the start button. All the usual start up things no issues. No engine cranking however. Nothing. Here's what I've done so far.
Turned it over using a small car battery (not on a running car) - turns over and cranks nice and fast. However not firing. Can smell faint fuel from the exhaust.
Made the assumption at this point that potential issues with the spark plugs, so I popped the tank off, popped the spark plugs out and to be honest they werent bad at all. Replaced them anyway - may as well with them out. Checked all the connections, no signs of moisture ingress or any corrosion issues etc.
Rebuilt everything and nothing. No spark. Turns over fine and dandy - definitely fuel coming through.
Never looked at the electrics side beyond changing spark plugs. So if your advice is checking earths etc please remember I wont have a clue what your on about. If there is a section or part for guidance on it I will try to find it. Just not sure where to go with this now.

Any help appreciated!

Regards,

Crafty

[P.addy]

Double check your killswitch wiring. Mine was having silly issues starting a while ago when I loaned it, switchgear looks rather grubby and has been solid since.

[Rogerborg]

And if not the killswitch, perhaps side-stand switch or associated tomfoolery. Is it showing a clear neutral light? Have you tried taking it in and out of gear? Tried with the clutch in and out?

Paddy Y U no offer tree fiddy?
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[Craftsmen28]

Getting a clear non dimmed or flickering neutral light. Have checked through the kickstand switch.

Assume I'm new to this self bike maintenance - what is other associated kickstand tomfoolery? Or where is a good place to look for that info?

Will spend a few hours this afternoon in the garage. Will check over the kill switch wiring (when I find something directing me how too).

Thanks for the guidance so far gents. Will let you know if it sorts it out.

[Rogerborg]

[Pigeon]

Engine wouldn't turn if killswitch or sidestand cut out.....says he, knowng nothing.

Have you checked the plugs are actually sparking?

[Craftsmen28]

Forgive my ignorance again but how do you check they are sparking? Is it just a case of popping the tank off again, air filter out, take a plug out, keep it attached to the cabling and crank it over? Would that not cause issues elsewhere?

[Pigeon]

Plug out, ht lead attached, hold plug thread against engine case, crank.

Will it cause issues, don't know, I'm an idiot. Understand less about modern bikes than older ones, and that's not a lot!

[Polarbear]

Have you an FI or engine warning light up and what does your rev counter needle do when you switch on the ignition?

I can't remember if my STR turned over with the kill switch on and just didn't fire or didn't turn over. I suspect it didn't turn over but I rarely used the kill switch so can't be sure.
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[Craftsmen28]

Ok after being away for two weeks courtesy of work want to say thanks for the replies and ideas.

Polarbear the rev needle rolls up to 16k rpm and back down to zero as its always done. If the kill switch is on this bike doesnt turn over at all.

Pigeon thanks for the spark check info. I think i need to get a bit more familiar with the bikes electronics. What I found was when I had everything removed for access to the spark plugs the would spark at all even with power connected. This may be related to what turned out to be the cause of the problem.

Rogerborg, thanks for the info - I suspect it will be useful for future work! I intend on grabbing a project bike to work on. I've enjoyed spanner bending on the bike but would rather do it on a bike I don't NEED on the road!

[Craftsmen28]

The actual fault was twofold.

The battery is kaput in the style of triumph. Enough to turn on, but when attempting to start battery check below required levels. So 1st thing means a new battery.

The vacuum tube (I believe its a vacuum tube), to the MAP sensor had come off. Now gently secured via tie wrap. While taking the tank and air-filter box on and off I never had cause to touch the MAP sensor or tubing to it. I cant see how it came off at any other point than me working on it though.

So the morale of this story is dont be a ham fisted clown and get a better battery trickle charge feeder!

Thanks for all your help guys. Its much appreciated.

Crafty

[andys675]

probably not the fault of your charger

my battery died after 14 months, same problems, battery wasn't faulty

basically the dealers don't charge them new when they're doing the bike PDI, most of us know that a new battery requires fully charging before use, much the same as when you buy a new mobile phone and you have to charge it first, if you don't charge it fully when new it will never charge fully, dealers don't do this because it's quicker to fill the battery and just throw it on the bike instead of leaving it on an optimate overnight to charge fully

18 months later the voltage drops below 11.5v and your street won't start because it needs more than that to run the lights, fuel pump, ECU, fuel injection etc which all come on with the ignition.

a well prepped battery will show around 12.75V on a multimeter, a poorly prepped one 12V, you're only 0.5v away from shutdown, then you press the starter...........and it's draining power
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[Polarbear]

Glad you are sorted

Batteries are funny things. I had one in my 1800 Wing for 5 years with never a problem. Put a new Bosch in the wifes ER6 and it didn't last 18 months.

No logic to it.
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