Electric start not working

[Thecrazycheesesandwhich]

starter motor fine

Battery's all good/fairly new

Spark plug changed 

[Tiggie]

Ht leads or fuse?

[Thecrazycheesesandwhich]

9 minutes ago, Thecrazycheesesandwhich said:

starter motor fine

Battery's all good/fairly new

Spark plug changed 

The electric start spins also but nothing after that 

 

[Tiggie]

does the motor sound like it's going to start or is it just the sound of the starter spinning? Have you got a multimeter to measure the battery? 

 

If you are feeling energetic you could try bump starting the bike. If it fires up at least you can rule out anything too major 

[Old-codger]

Kill switch turned off ?????

[Thecrazycheesesandwhich]

So it sounds like it's just spinning basically, the voltage seems fine, got the tested not along ago, and it will bump first push 

[Mississippi Bullfrog]

Voltage isn't the whole story. A discharged battery can show 12v at rest. You're really looking for at least 12.6v minimum and for the voltage to hold under load. 

 

A partially discharged battery can spin the starter but not have anything left to produce a decent spark. 

 

If it fires easily from a bump start then first thing is to give the battery an overnight charge. 

 

Come the onset of cold weather this happens a lot. Batteries that are colder have less capacity.

[oldgrump]

Hi, Not sure what bike you have, but if the starter motor is spinning, and engine's not turning over, and bike bumps easily, then I would say depending on bike? That the cogs/chain between starter and sprag clutch, or even the sprag clutch has failed.

Some bikes have a chain, some have a series of cogs!!!

What's the model and year?

[Thecrazycheesesandwhich]

Suzuki dr125sm 2008

[oldgrump]

On the left hand side of engine there are 2 large case's, on the front case, there is a small case at upper rear, underneath there are 2 small cogs which go from the starter motor to the sprag clutch, check to see if they look all okay.

If you remove them you should feel the large cog to the left which is the back of the sprag clutch, this cog should only go around one way, if it spins by hand both ways, it's knackered.

And should be replaced.

Which is a job you might need to take to dealer, unless you have the tools to do it.

 

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