Cutting out on idle

rhys99 · Scooby Slapper Joined: 24 Feb 2015 Karma :

My Aprilia RS4 125 just began cutting out on idle, it will idle for 10 ish seconds then die. It starting doing this half way through a ride once the engine was warm, also when starting it back up it would backfire. It's due a valve clearance check, could this be the cause of the problem? thanks
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Tankie · Crazy Courier Joined: 24 Feb 2017 Karma :

sounds like it's running a bit lean, screw the air screw in 1/4 turn
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rhys99 · Scooby Slapper Joined: 24 Feb 2015 Karma :

Paulf · Nova Slayer Joined: 24 Jan 2017 Karma :

Not familiar with aprilla but if it's fuel injected it would sound like the IAC idle air control valve if fitted on other makes e.g. honda you can do an IAC reset but means messing with ecu. Check youtube for aprilla reset or a learned member might put in a suggestion. This assumes the basics are right e.g. good spark, good compression, fuel pump working, spot on timing and valve clearances spot on. Start with the basics.

rhys99 · Scooby Slapper Joined: 24 Feb 2015 Karma :

rhys99 · Scooby Slapper Joined: 24 Feb 2015 Karma :

Update : plugged in to diagnostics thingy and has 3 faults codes, open circuit ( cant remember other bit ) on Injector, coil and temp sensor. Bike doesn't start at all now.
____________________
21:16:02 Fin: I got a girl to believe I have a huge dick today, she's going to be so disappointed
K̶5̶ ̶S̶V̶6̶5̶0̶S̶ K3 SV650N