vivalavidabohemia

Hello,

Planning to open the motorbike tomorrow.

If the pistons move, please what is the most likely source of the problem?

My understanding is that the starter motor is spinning based on the sound (the electric part of the starter seems to be working, but I do not hear any sound from the pistons/mechanical part).

I am hopping it is going to be one of the gears that connect the starter with the shaft.

On your previous post you say that if it is spinning it will be a trouble. Please, which kind of trouble? The main reason for asking is that I am planning to open the motorbike next weekend and having an idea on what to look for will be helpful.

Thanks in advance for your help.

Hello all,

I am afraid that I have a new issue with my old 600 cbr honda (2001).

When I try to start the engine, the electric part of the starter seems to work, but not the mechanical part.

I base this assesment on the sound of the motorbike, I hear the electrics, but not anything trying to move the mechanical part/pistons.

I thinkg it is likely the gear connection between the electric motor and the shaft, (although I have not openned the engine yet as want to have a clear target/s before I do so).

More than happy to hear about comments from more experienced people. Comments are mpore than welcome.

Jordi

Hi Billy,

At the end I used a multimeter to check the fuses. One of them was not working.

Now the fuse has been replaced and the dashboard working as usual.

Thanks for your help.

Hi Billy,

I understand that like that I would only stop the HISS indication, but not the HISS itself. Please, am I correct?

Unfortunately now my old motorbike is giving me a new challenge, I think that more complicated than the previous one...

Right now the dashboard does not show the revolutions, speed or temperature with the engine on. I belief that it not of the lights of the dashboard works indeed (neutral green light either). The indicators do not work either, which worries me.

I tend to belief that it is related to the Honda HISS safety system. When this started the HISS was still working (flashing every few seconds), while none of the other lights and indicators was doing anything. Right now, when the engine if off the HISS does not flash (before it used to). But the HISS flashes when I put the key in the ignition position. None of the other lights or indicators do anything when the key is in the ignition position or then the engine is on.

What I have done is to disconed the battery, in the hope that it kind of reset the HISS. Not sure how long I should wait, as I understand that the HISS should have any sort of internal battery or power source.

Not too worried about the dashboard, but actually worried about the indicators.

Any advice will be more than welcome. 

Just to let you know, the battery is doing great now. Thanks a lot for your help

22 minutes ago, Mississippi Bullfrog said:

A motorcycle battery is really 6 batteries connected in series. Nominal voltage charged is 2.1v per cell. So your average reading will be around 12.6v.

 

For reference Yusua say an AGM battery at 100% charge will read slightly higher so between 12.8 to 13.0v, but batteries are very rarely at 100% charge unless they have been on a trickle charger. So it's more usual for them to sit around 75-80% charge and read  between 12.5 -  12.8v.

 

Your tests don't identify a leak. That's not how you check. But it's a good idea to try disconnecting the battery when the bike isn't in use. It the battery holds its charge that suggests a leak when it's connected.

 

 

 

I will repeat the test this time using the  earth lead as commented above.

It is going to take me a few days though (as I am busy with work).

8 minutes ago, Stu said:

13.16v? is that after standing all night? 

 

Not coming straight off a ride or off a charger? 

 

As that is too high you should be seeing 12.6 ish 

Hi,

I charged the battery up yesterday. Today I went for a 40 minutes ride a couple of hours before checking the battery.

24 minutes ago, V650 said:

Start with the basics 

Set your meter to Volts DC

Start the bike up 

Probe the battery  Red to +  and Black to - and give the bike a little rev prob about 3000 rpm and see what voltage you are getting 

You should be seeing about 14- 15V 

If you are not getting an adequate supply to the battery and you say you have changed rectifier then I would be looking at the stator output

 

But check the volts at the battery with the engine running and about 3000 RPM as a first  

Hi,

Before starting the engine the battery was giving 13.22v, with the engine at 3.000rpm it was giving me 13.6-13.7v.

It is an AGM battery. Do you think it may be an issue?

23 hours ago, Stu said:

 

Yes I know how to do it and how you meant to do it but your first post just said disconnect the earth lead and if anyone tells me to do that I would just take it off the battery  

 

Just trying to make it clearer for the poster  

 

 

The HISS shouldn't drain the battery that quick unless there is something wrong with it 

 

What sort of riding are you doing? lots of short runs? 

 

Have you also checked to make sure its charging correctly 

I connected the tester on the battery with the engine off and the key not connected and it was giving me 13.16v. I turned the key to the ignition position, but without starting the engine and the lecture was 12.58v. I started the engine and the lecture was around 13.8v (or a bit more if I increased the revolutions).

I also kept the tester in the positive of the battery and put the negative of the tester in different locations of the motorbike. In a couple of locations the lecture was the same as when I connected the tester on both the positive and negative of the battery (13.22v that time), but in some other locations the voltage was fluctuating quite badly.

I understand that this means that a leak is most likely? Is there any risk to any of the components of the motorbike? would it be prudent to disconnect the battery when the motorbike is not in use?

Usually are short rides 20-30 minutes, on the weekends I do rides of around 1h - 1.5h.

12 minutes ago, Stu said:

 

but if you take the earth lead off the battery then go to the frame with the multimeter you haven't earthed it  

 

Something needs to go to the battery to complete the circuit  

1 hour ago, Mississippi Bullfrog said:

Disconnect the earth lead then put your tester between the earth lead and the frame. Set the tester to measure current flow.  At most there should be a few milliamps. Anything significant and you've got a current leaking. In which case pull the fuses one at a time until the flow stops. The leak will be in whatever circuits that fuse feeds.

Thanks for your comments. I will give it a go tomorrow  

2 hours ago, Stu said:

Hi @vivalavidabohemia welcome to the forum 

 

Does the bike have an alarm fitted? 

Actually it has the HISS (immobilizer) system. Do you think it may have something to do?

Hello,

I am having some issues with my motorbike Honda hornet 600cc (2003). 

The battery goes flat after around a couple of weeks (while using it almost daily, so my understanding is that it should be recharging). 

I have already changed the battery as well as the regulator/rectifier. Both good quality items. But the battery still keeps going flat after a couple of weeks.

Unsure on what to try next. Please, what do you think it would be the next logical thing to try in order to get the motorbike sorted out?

I have a tester and some basic maintenance skills.