problem. please reply before four :)

[mealexme]

right then my little yoda's. Just put an iridium spark plug in my Yamaha YBR125 (I checked its the correct plug). Started the bike up on the button, rode it down to the local tesco about a mile away before taking it out onto the duel carriageway to see if it actually made any difference at all to the problems i have been having. However I started it up at tesco, again on the button, I noticed it was sat at just below 1000 rpm, which was rather low, so i thought i would leave it a bit, so pushed it off the centre stand and was planning to wait and maybe rev it a bit untill it sorted itself out when water started dripping, quite a lot of it which i presume came from the seat when i sat on it. The bike then cut out. Then nothing.

No power what so ever from the battery so couldnt start it on the push start. had a look at the battery which had water on it, and it starts on the kick start but only for about a second, then dies. This happens with the battery in and with the battery out, it starts up but as soon as you try and rev it it dies, and if you dont rev it the longest it stays running is about three seconds. This happens with the new spark plug and the old.

When its started up there is a buzzing sound from near the battery which happens if the battery is connected or not.

To me, i would say its a fuse that has gone. But looking at it I couldnt tell as i know nothing about electronics. I couldnt even see a fuse haha.

What would you say? Fuse? Something else?

Also if it is the fuse, is it easy to replace? Because it would need to be done in a tesco car park, which is why I want to sort it by four, so i can buy whatever i need to buy and get it done before the shops close so it isnt left there overnight

Thanks, Alex

[WhiteRyder]

got breakdown cover? they can have a look and test battery and fuse's.

i dont know much about electrics but i do know breakdown cover means they can take it home for you

[Horseynat30101]

Sure the battery hasn't exploded which was what the "water" was?

[eastanglianbiker]

if you have had a lo of rain then water could of got into the electrics behind the side panel take them off check all the electrics there to see if any water laying on anything or pop into tescos and get a can of wd40 and spray that over the electic bits behind side panel then try it

[mealexme]

if you have had a lo of rain then water could of got into the electrics behind the side panel take them off check all the electrics there to see if any water laying on anything or pop into tescos and get a can of wd40 and spray that over the electic bits behind side panel then try it

put a new fuse in. it blew as soon as i started it. this was an hour after it blew the first time. thought that would be enough time for the water to dry. i will try the wd40 tomorrow after work. but cycling to and from the bike is hard work lol

[Ingah]

Could be reg/rect failure, making the battery pop, which made the 'water' due to leakage as the battery boiled itself.

Worth consideration as reg/rect's are easy to check with a multimeter and haynes manual.

[mealexme]

Could be reg/rect failure, making the battery pop, which made the 'water' due to leakage as the battery boiled itself.

Worth consideration as reg/rect's are easy to check with a multimeter and haynes manual.

it was def water, had a lot of rain recently and it came from above the battery compartment, and had no odour. If the WD40 tomorrow doesnt work, i will find someone a multimeter and give that a shot

[Guest Hodgy]

Never ever run your engine without the battery connected, you'll kill the reg/rectifier by doing that, even a few seconds can cause permanent damage!

The buzzing you heard could be the solenoid if water has got onto the contacts?

[polecat]

Is the plug connected to the series of events that followed ?

If the plug somehow caused to much power drain somewhere and something blew it could have caused a short circuit and fried the battery but I thought they are gel ones on the YBR ?

Anyhow You will have to test the electrics with a multimeter as suggested but you can always test the battery with a 12v bulb just to eliminate that part of it first and When you fix it maby put the old plug back incase it happens again !

Maby the reason you got the new plug in the first place was because a problem was already building with the rectifier or the fuel injection side of things and it mayby just coincidence it happened with the new plug in it

[mealexme]

well I think some water must have short circuited it, I ended up using some WD-40 and it works again now

It def wasnt the battery, because all the electrics worked when the engine was off. Think it must have been coincidence that the new plug and it not starting for the first time since i have had it happened at the same time.

Thanks all.