Registering valve position

[Johnny Dangerously]

Hi all,

not sure if any of you can answer this, but will give it a try. I recently took my battery off to give it an overnight charge (don't want to start a you do/don't have to take it off to charge debate). I've put the battery back on but just noticed in the manual it tells you to switch on the ignition and open the throttle up fully once or twice to register the valve positions with the Engine management unit.

I think I started it up quickly without doing this, but is it a problem? Is it something that you can do any time the ignition is on, or do I need to re-connect the battery and do it again?

just worried about doing any damage on the next ride.

Thanks in advance for any help

 

[Womble]

On an 1150, you could just remove the fuse for the FI, but that's not possible with the circuit breakers on a 1200.

Just to be sure, all you have to do is pop the earth off the battery, leave it for about 30s, and then reconnect. Then turn on the ignition and recalibrate the TPSs as you intended.

By the way, you really needn't bother pulling the battery out when charging, just disconnect the earth, tuck it safely out of the way and jumper onto the battery.

 

[Sergeant Pluck]

It's not the valve positions that are being registered, it's the TPS (Throttle Position Sensor). On the 1150 - if the TPS setting gets lost, the ECU just defaults to a basic fuelling map, meaning it'll run fine (probably run richer), just it not running 'optimally'.

 

[terayon]

When you turn the throttle to register the tps position, do it slowly. Take about 3 seconds to open up fully and and then another 3 to shut down. Do it twice then start engine.

 

[bumpy]

By the way, you really needn't bother pulling the battery out when charging, just disconnect the earth, tuck it safely out of the way and jumper onto the battery.

Just intrigued, but why do you have to disconnect the earth. I have always just turned off the ignition and trickle charged with both terminals connected. Does this not apply to the 1200GS

 

[Johnny Dangerously]

sorry, should have said before also, its an 07 1200GS, not sure if its different depending on model

 

[John Armstrong]

Just intrigued, but why do you have to disconnect the earth. I have always just turned off the ignition and trickle charged with both terminals connected. Does this not apply to the 1200GS

Disconnecting the earth electrically isolates the battery from the can-bus etc etc completely. Switching off the ignition only isolates the ignition / starter from the battery.

If you're only trickle charging it probably won't be a problem. PROBABLY

 

[Johnny Dangerously]

for the dumb among us, when you say earth, are you talking about the negative terminal? Sorry for the dumb question

 

[Yoda]

There is no need whatsoever to remove the battery, or disconnect earth leads, to trickle charge the battery.

Use an Optimate (or equivalent) and permanently attach the supplied fly-lead to both battery terminals. Then just plug in as and when needed.

Been doing this with all the bikes I've had for the past six years. Canbus or no Canbus. No problem.