[Baldrick]

hi i have first big problem with my GT.
I have about 1000km without bigest problem until now :/

last week i wantet take i ride but after few minutes byke went off while driving, 
I stopped at the edge of road and try start again but no chance

when i turn keys i hear pump and all ligts turn on but the bike will not start.
i change sparking-plug but same and when i try put it on valve and try start it does not sparkle.
I pushed the bike back home,

next day i came to garage and bike normaly start. but after few minutes when i turn it off and try start again  i have same problem.

today i try cut end of cable to plug but i dont know if it help, bike start and when i turn of and start again it start but now starting 2-3 sec when motor starts

[medra42]

When it doesn't start, does the starter turn and is the EFI putting any fuel into the cylinder?

[Baldrick]

yes, its no problem with fuel,  the problem is that the plug does not sparkle.
And its not in plug i try three diferent.

[Arizoni]

I think the first thing I would check is the small wires that connect the ignition coil to the electrical harness.
The plug in connector on these wires may be loose.

The ignition coil can be found by tracing the large spark plug wire back to its source.

[Baldrick]

i check all connectors under batery, all seem to be in order

[dginfw]

At first I thought it might be the sidestand switch, but if you hear the fuel pump making noise that would rule it out....
others have reported problems with the spark plug cable itself. The factory plug wire is not of the highest quality and the inner conductor can fail without any outside signs of damage

[trimleyman]

This happened to me with my G5. Replaced the HT cap (plug cap) with an NGK and all has been well for 20K miles. Changed the cap on my GT as soon as I got it home. The cap I use is a LB01EP. They only cost a few dollars and are more reliable than the standard metal shielded caps.