Yamaha YBR 125 2009 not starting

[chris clifton]

Hi Everyone. Can any one help me. I purchased a yamaha ybr 125 2009, fuel injection last week. I started my journey from where i bought it at Weston Super Mare. All was good, bike riding as it should be. I got to the far side of bristol and stopped at traffic lights. The bike cut out. I tried restarting it but to no avail. 3 different guys stopped to try to help, one in particular who was with me for a good couple of hours but still would not start. In the end a recovery vehicle was called. When he arrived, the bike started. I still got him to recover me to home just in case. Got home and she started. Have since tried restarting the bike but no use. She turns over, also by putting a charger on to ensure a full spark. Have changed the spark plug but still not firing up. The fuel pump is working and flowing through as i disconnected the fuel line at the injector side and petrol came through. What i have just noticed is that with the ignition on, the engine management light is flashing what i can only assume is a fault code. it flashes 3 times slowly then 3 times quickly then 3 times slowly etc. Has any one got any ideas what is going on and how to remedy this issue. Thanks in advance. Chris

[at106]

Ive had a quick look online but i cant find anyone with the same fault code that you're getting.

As you only got the bike last week presuming you got it from a dealer i would get them to look at it. If not ask a yamaha dealer what the code means.

[chris clifton]

[TUG]

I have the codes in my tool box, i'll dig them out tomorrow for you.

As the bike is 09 and has had a great deal of use it's likely that either one of the wires has broken somewhere or that a plug/connector has corroded up causing your failed starting.

These bikes don't normally go wrong and i've never had an error code on one.
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Haz ER-5, innit!

[chris clifton]

[TUG]

not had a chance to sort out the error codes, busy fixing my bike.
I have to bypass my sidestand switch tomorrow so i will make sure i pick up the codes for you.
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Haz ER-5, innit!

[neil.]

Going by the Haynes book... a code of 33 (3 long flashes, 3 short flashes) is the ignition coil and the engine will not run. Possible causes are a fault in the wiring (corrosion, break in cable etc), faulty coil, faulty ignition cut off circuit or faulty ECU. Start by checking and cleaning up the wiring and connectors.

[Alpha-9]

Bamp.


Mate TUG, you stil got those error codes?
Getting a pulsing neutral light atm

Looking for the haynes online, gonna buy one off ebay when I can
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Fzr-600 1999

[_Iain_]

Pulsing neutral is a simple one, low battery.

Headlights probbably pulse with it, occasional flashing of engine management and piss poor idle are also symptoms. Also will run fine and randomly cut out at lights and stuff.

Ybr's do some fucking wacky things when the battery gets low. If it keeps it up then either new battery or new reg/rec (silver box with heatsink fins on it, directly under petrol tank on the LHS of bike. Approximately 5cm x 5cm. Four wires i belive on a multi plug facing the back of the bike.) Need to swap mine out...paddy, joolz and sid will vouch for this

Take it out for an hour and redline every single gearchange. Rag the absolute fuck out of it. If that doesnt remedy it then stuff needs swapping out!
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Please be aware that the above post may be full of complete nonsense.
Riding: '07 KTM Duke II, Baotian BT49QT-20 Driving: '88 Volvo 340

[Alpha-9]

[ThoughtContro...]

[Alpha-9]

[neil.]

New battery time by the sounds of it. What's the voltage on the battery when the engine is running and you open the throttle to around 5'000rpm? Should see 13.something which means the alternator and reg/rec is working. A battery should hold something like 12.7V when fully charged and not drop much below. Certainly not to 11V.

The battery in the 2007+ YBR is a gel lead acid type, sealed and maintenance free, so you don't need to top it up with distilled water, check its breather hose or measure specific gravity of the electrolyte. I still have the original battery (which did need all that maintenance) from my 2005 YBR which still holds a good charge after 7 years!
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CBT February 2008 | A2 June 2008 | Yamaha YBR125 (written off) | Honda CBF125 (current)

[Alpha-9]

[neil.]

The fact that you're getting around 13 volts when you rev means the charging system is doing okay. The fact that your battery isn't holding a charge from a separate charger makes it look like it's the culprit.
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CBT February 2008 | A2 June 2008 | Yamaha YBR125 (written off) | Honda CBF125 (current)

[Alpha-9]

[neil.]

Someone changed lanes into me on a roundabout last April - their fault but they dispute it, so it's due in court in November...
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CBT February 2008 | A2 June 2008 | Yamaha YBR125 (written off) | Honda CBF125 (current)