Hypermotard 821 Not Starting But Full Battery

Hi Maurizio
Put the vid on YouTube and then link it here.
How many miles has bike done? is it making "clanking" noises from engine/starter area? (long shot)

 

Have you put a multi tester over the battery to check it’s giving you over 12 volts, it can appear fully charged but not to it’s full potential.

Are you having a clinking sound only.

Or is it turning over too slowly or not at all.

There are a lot of variables, you may find a clip of a motorcycle exhibiting the same symptoms on you tube?

 

Hopefully the relay

 

Please don’t carry on trying to start a bike on a low battery, you’ll wreck the sprag clutch IMO. Salesman did that with my MV Agusta when I picked it up, was forced to tell him to stop such was the cruelty.

Check the battery with a multimeter would be my first call.

 

Thanks for vid, everyone can get an idea now.
Sprag clutch and starter sound ok but churn is a little slow but surprised it's not catching. Before you start suspecting something major, you could try jumping from a car battery but with car engine NOT running. As said, don't try repeated starting attempt without a couple of minutes between starts if it's not even trying to start. It could simply be the low temperature at the time you tried it - was it close to freezing? A set of aftermarket battery and starter leads will also help in the future. As Ducatiscud said, check static voltage of battery but also battery voltage while you are churning starter if possible.

I have even tried easy start during really cold spells but it's last resort stuff and it would be good to get to the source of the problem. Last time you used it, did it run well? start easily?.

 

Churn is meant for how fast it’s turning over, I’d hope for a faster engine turn. Yours sounds like it’s churning Milk to Butter or stirring Molasses in Winter.

 

If it doesn’t start off a car battery then you’ll have to go back to basics, ie spark? Fuel?

Im not saying it’s this so don’t go down this route just yet but as an example I had a crank position sensor fail once. The bike was fine, I rode it all day, put it away, came to use it a couple of weeks later - wouldn’t start. CPS had failed so no spark anymore. I’m just pointing out these things can happen but you won’t know until you do some tests.

 

My 821 turns over faster than that. If it’s not a poor battery, something else is wrong between battery and starter.

 

Yes, Voltage, and clicked to the same position as the picture. no need to worry about polarity even, as will just show a negative equivalent figure.

 

the correct voltage while cranking will raise controversy on here, and does depend a lot on ambient temperature of course.
Rather than put a noose around my neck, I can p.m. you if no-one replies. Unintended additional drain from the sprag clutch and the starter motor can play a part here, as well as a battery not in the best health, so best keep an open mind to start with.

 

I’m going for nothing below 11 on a V twin whilst cranking. DM me for the address to send the Wotsits

 

6.3. When do I get my prize….

 

When the results are announced for furthest away.

 

42.