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Is this a common problem?

When I start my falco it seems to hesitate, 'click' and then start. At the 'click' point it appears to restart the battery and so the computer resets itself. This means I have to reset the clock, change back to mph and reset the rev limiter. This even happens at fuel stops.

Yes - usually a sign that your battery is needing to be retired for a new one.

Nevertheless, check all connections are clean and tight first - but my money is on a new battery being the solution.

Worth the money as starting with a weak battery can have an adverse effect on the sprag - besides the hassle of sorting out the resets all the time.

How do I know if it's the original battery?

Hey DRider looks like you should pull both our threads together!!

PH100- Having starter issues too!!

Have just had chat with DRider and have just ordered one of the Yuasa batt's people seem to recomend as it was becoming a bit of a lottery starting the thing

My battery was fortunate in having a date on...2005, so time for a change

...I just hope that fixes it...good luck with yours!

I had the same problem, bought an optimate on ebay and now its as good as Gold

http://images.esellerpro.com/2189/I/111 ... rger-1.jpg

...have one of these but didn't use it on this instance, but i think the batts defuncked anyway

mrapriliafalco wrote:I had the same problem, bought an optimate on ebay and now its as good as Gold

Good tip, however if your battery is completely sh@gged an optimate will not help, as I've found out.
By all means buy one, but it might be too late to recover your current battery.

Things I did were:
- wire mod,
- new battery,
- yamaha starter relay

Over a year now, ~13k miles and it hasn't failed to start, or popped a reset.

furygan man wrote:http://images.esellerpro.com/2189/I/111 ... rger-1.jpg

...have one of these but didn't use it on this instance, but i think the batts defuncked anyway

I had one of them, it showed the battery healthy, and it wouldn't even try to spin the engine.
Was replaced by an optimate 4 very quickly.

But you all know what your doing, i'd love a 'wire mod' and 'starter relay' but completly clueless as to where and how

Start relay is virtually plug 'n' play






....wiring mod isn't though

A wire mod is soldering extra wires between the battery and the reg/rec. Basically you're improving the connection:
http://www.apriliaforum.com/forums/show ... hp?t=64758

The Yamaha relay is a 100A unit whereas the Aprilia uses a 50A version, I think. You can order it from your Yam dealer, part no:
4KD-81940-00-00

or this one
http://cgi.ebay.co.uk/STARTER-RELAY-APR ... 45f384f7ae

A wire mod is soldering extra wires between the battery and the reg/rec. Basically you're improving the connection:
http://www.apriliaforum.com/forums/show ... hp?t=64758

...as i said...haven't a clue, have read this a while ago and still no clearer, lots of words and no pics...not good for someone like me!

The Yamaha relay is a 100A unit whereas the Aprilia uses a 50A version, I think. You can order it from your Yam dealer, part no:
4KD-81940-00-00

or this one
http://cgi.ebay.co.uk/STARTER-RELAY-APR ... 45f384f7ae

...thanks for this but again, wouln't have a clue what to do with it! ...195 posts in 4 months...says everything!

EEK sorry PH100, thought this was my thread sorry to highjack it!!!

There are pics later in the thread.
You need the take the rear plastics off the bike, then it'll become clearer.

The relay is a straight swap, it also lives under the rear plastic on the RHS as you sit on the bike. You basically disconnect the old one and put the new one in.

Noted and one for the coming months...thanks again

It's funny when you look back and see how many others have suffered the same problem...hope it all gets sorted

What a bunch of clever (and patient) people you are

You'll probably find if you order the bits, someone will be up for helping you fit them. Either that or get down to one of the meets and someone will...