Urgent help required

[Steve Law]

Evening everyone,

I am supposed to be selling my bike tomorrow.

On starting it up tonight for the first time in a couple of weeks, it immediately started revving and would have revved to the redline had I not immediately cut the engine.

The battery was new last year, BMW original, but was low having not been used much this winter. It did start and ride perfectly approx 10 days ago.

I topped up the oil, but the level was only slightly low so I only added a bit. Is it possible that the level is too high and is pressurising the crank cases? Is that even possible??

The other thing I have done is remove the Garmin Streetpilot system, but that appeared to go without a hitch.

ANY IDEAS at all would be greatly appreciated.

For info the bike has 20k has full BMW service history and is as far as I am aware in perfect condition.

Thanks in advance,

Steve

 

[Timolgra]

Throttle cable?

 

[Steve Law]

Hi,

I thought that but both cables are working and are rolling back to their stops correctly.

Thanks anyway

 

[hops]

worth checking

the throttle cables are seated correctly. See this link for a pic of the most common problem.

 

[John Armstrong]

Did you use the "choke" and if you did, did you try and close it?

 

[Steve Law]

Did you use the "choke" and if you did, did you try and close it?

Hi, I did use the choke to start it originally but then obviously immediately closed it when it started revving.

It is literally revving round to the redline, or would if I let it.

I have check the throttle cable positions they appear to be normal, is the there an electronic control component that may be faulty or is the throttle control strictly a cable affair??

Thanks for the rapid responses, keep them coming....

 

[John Armstrong]

Sometimes my 1100 revs a bit after closing the choke and it sticks until I tweak the throttle.

 

[fatnfast]

If, apart from an oil top up, the only thing you did was remove the Garmin (and its wiring?) then I would retrace all your steps when you did this. Did the tank have to come off to remove any 'hard' wiring? Could you have trapped anything when refitting? Are both throttle bodies snapping completely shut? It sounds like an issue with the throttle cables to me, as suggested by the replys so far.

 

[Steve Law]

If, apart from an oil top up, the only thing you did was remove the Garmin (and its wiring?) then I would retrace all your steps when you did this. Did the tank have to come off to remove any 'hard' wiring? Could you have trapped anything when refitting? Are both throttle bodies snapping completely shut? It sounds like an issue with the throttle cables to me, as suggested by the replys so far.

Hi again, I didn't need to remove the tank, but I did have to pull the battery end of the wires back up along the inside of the tank, where they will have certainly ran alongside the righthand side throttle cable.

I got the wife to run her little hands and arms as far down the inside of the tank feeling for pinching of the throttle cable she did come to a point where the cable was tightly stuck between two "solid metal parts" she freed it from there and the throttle action may now be slightly longer, but I'm not sure this isn't just wishful thinking.

However, the battery that was already a little weak will now not start the bike and so its currently on charge.

My fingers are most well and truly crossed, the bike has literally been perfect upto now and in fact I'm only selling it because I've bought a 1200Adv.

Thanks for the rapid replies, if we have resolved it, it is most definitely thanks to you lot pointing us in the right direction.

Steve

 

[Steve Law]

Hi all,

Well after an hours anxious wait while the Opitmate worked its magic the bike is fine.

It was the throttle cable that had been pulled up slightly (but enough to make it rev hard) that caused the problem.

Thanks, to your help and the wifes small hands the panic is over.

All the best,

Steve

 

[Wilburt]

A wife with small hands.......always a good thing