Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


Yamaha 125 ybr 2007 Not Starting (not Sun related)

Reply to topic
Bike Chat Forums Index -> The Workshop
View previous topic : View next topic  
Author Message

Ryan C
L Plate Warrior



Joined: 06 Sep 2013
Karma :

PostPosted: 15:48 - 06 Sep 2013    Post subject: Yamaha 125 ybr 2007 Not Starting (not Sun related) Reply with quote

Hey, first post so this should be good.

I have a 125 ybr Yamy, which runs amazing well tootling around the Lincolnshire country side, and i love it to bits. Smile

But i have a slight technical problem on start up, sometimes, when i turn the key and hit the Ignition, it will not start, despite the engine trying to turn over.
On the dash, all seems normal, neutral light comes on, as well as the pre-ignition light with the little engine logo on it. But when i try to start it, the engine light flashes at me rapidly and it will not start. When i stop trying to start it, the light will slowly flash until i turn the key to "off".

If i set the key to off, and then back to start, it sometimes does not start again, and sometimes it will start as though nothing is wrong at all.

I've been reading though some different forums and posts, changed the battery with a fresh one, and changed the spark. I've also checked wires for any obvious faults but have found none. (next job on my list to poke around with a multimeter and check for broken wires)

Any clues? It's starting to drive me up the wall.

Thanks in advance,

Ryan

Edit: Also, this has happened on hot and cold days, in the sun and in the rain.
____________________
Currently Riding: Yamaha YBR 125 Silver 2007 Model
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

Ryan C
L Plate Warrior



Joined: 06 Sep 2013
Karma :

PostPosted: 02:26 - 07 Sep 2013    Post subject: Reply with quote

bump Smile
____________________
Currently Riding: Yamaha YBR 125 Silver 2007 Model
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

cb1rocket
World Chat Champion



Joined: 30 Jan 2010
Karma :

PostPosted: 11:57 - 07 Sep 2013    Post subject: Reply with quote

ignition switch faulty? maybe it allowing it to start but the earth is killing the engine? maybe
____________________
Honda H100S2 Rebuild - http://www.bikechatforums.com/viewtopic.php?t=253852
 Back to top
View user's profile Send private message You must be logged in to rate posts

moonzoomer
Brolly Dolly



Joined: 01 Jul 2012
Karma :

PostPosted: 12:03 - 07 Sep 2013    Post subject: Reply with quote

Try the sidestand switch which can corrode, you can bypass the switch by joining the two wires going to the switch as a test.
 Back to top
View user's profile Send private message You must be logged in to rate posts

RhynoCZ
World Chat Champion



Joined: 09 Mar 2012
Karma :

PostPosted: 12:52 - 07 Sep 2013    Post subject: Reply with quote

This might sound stupid, but are you sure the kill switch on your right handle bar is set on?

The NC27 I had could turn the engine with the kill switch off. I once spent half an hour starting it in front of Tesco, even tried to push start it. Then I realised the switch was off Embarassed

Some people even drained the battery flat like that Thumbs Up
____________________
'96 Kawasaki ZX7R - '91 Honda CB-1 (sold) - '88 Kawasaki GPz550 (sold)
Pics: http://s970.photobucket.com/user/RhynoCZ/library/ZX7R?sort=4&page=1
 Back to top
View user's profile Send private message You must be logged in to rate posts

Ryan C
L Plate Warrior



Joined: 06 Sep 2013
Karma :

PostPosted: 15:09 - 07 Sep 2013    Post subject: Reply with quote

moonzoomer wrote:
Try the sidestand switch which can corrode, you can bypass the switch by joining the two wires going to the switch as a test.


Should start with the stand down, but ill give it a look regardless.

As for a killswitch, there doesn't seem to be one on my handlebars and i havn't seen one when poking around the engine.

The engine light flashes fast 3 times and then slowly 3 times, instead of a constant slow flash.
____________________
Currently Riding: Yamaha YBR 125 Silver 2007 Model
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

Ryan C
L Plate Warrior



Joined: 06 Sep 2013
Karma :

PostPosted: 16:01 - 07 Sep 2013    Post subject: Reply with quote

cb1rocket wrote:
ignition switch faulty? maybe it allowing it to start but the earth is killing the engine? maybe


good theory, ill also take a look at the switch, see if i can see anything out of the ordinary.

Thanks for the quick replies people, i'll get back to you if i find a solution or not.

-R
____________________
Currently Riding: Yamaha YBR 125 Silver 2007 Model
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

lukamon
World Chat Champion



Joined: 18 May 2007
Karma :

PostPosted: 16:37 - 07 Sep 2013    Post subject: Reply with quote

neil from way in the past. wrote:
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. Thumbs Up Start by checking and cleaning up the wiring and connectors.


HTH Thumbs Up

edit: seeing as your problem seems to be intermittent, i'd put money on a wire is broken either internally or as a result of chafing on the frame. get out the 'meter and check all the wires around the coil, and wiggle them if poss to try and replicate the fault
____________________
killa wrote: Im an ass man myself
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

kevinheb
Two Stroke Sniffer



Joined: 22 Apr 2012
Karma :

PostPosted: 17:59 - 08 Sep 2013    Post subject: Reply with quote

Have you counted the flashes?

It sounds like the same problem I have

1 long flash followed by 9 short flashes, which equal an error code of 19.

Its not a major issue, normally I just have to turn it off and then try again and it starts, but I would love to work out the cause of the problem and fix it.
____________________
YBR 125 (sold) > YBR 250 (awaiting parts) > F650CS
 Back to top
View user's profile Send private message You must be logged in to rate posts

tom_m
Scooby Slapper



Joined: 18 Jul 2012
Karma :

PostPosted: 22:43 - 08 Sep 2013    Post subject: Reply with quote

i had the same problem with my brothers 2008 ybr 125, it turned out to be water in the loom and/or connectors. I untaped all the wiring loom and set to it and all the connections with a hairdryer followed by a squirt of wd-40 in the connections.

Never had the problem since Thumbs Up
____________________
Current: 2005 Kawasaki Er-5 C5P
Past: 2012 Yamaha Ybr 125, 2004 Yamaha Neos 50, 1994 Suzuki Gn 125, 2005 Aprilia Sportcity 125, 1988 Yamaha Tzr 125
Theory: Passed... Mod 1: Passed 22/08/12 Mod 2: Passed 22/10/12
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

simonjb
Nova Slayer



Joined: 04 May 2013
Karma :

PostPosted: 11:15 - 11 Sep 2013    Post subject: Reply with quote

Found this on Yamaha Workshop, someone else with the same error code.

Quote:
Yes, you have a fault code 19 - basically a problem with the black and white wire (or its connectors at either end) between the ignition switch and the ECU.

It might be easiest to start at the ignition switch working back to the ECU.

The ECU itself is located within a rubber mount on the top frame tube under the tank about 6" or so back from the headstock.
To remove the tank you'll need to remove the rear tank bolt (12mm), the link bar between the two black plastic air scoops attached to the underside of the tank(10mm), the lower fuel pipe that feeds the injector - remove small crosshead security screw, lift away plastic shroud to release the safety tab (push upwards)to access the two release buttons which need to be pressed in together to release the pipe from the injector unit. A small amount of fuel will leak from the pipe. As you lift the tank you can unclip the feed to the fuel pump. Do not lift the tank up too high or ypou wil ldamge it against the bearing cover located on top of the steering head column.

Having removed the tank which should take you no longer than 5 mins, you can then try and locate the problem


http://yamahaclub.com/forums/topic/26845-ybr125-fault-codes/
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

YBR Ric
Trackday Trickster



Joined: 16 Jan 2012
Karma :

PostPosted: 22:10 - 11 Sep 2013    Post subject: Reply with quote

Never did get any feed back for that post.
____________________
Faecesbook - what's all that crap about?
 Back to top
View user's profile Send private message You must be logged in to rate posts

Ryan C
L Plate Warrior



Joined: 06 Sep 2013
Karma :

PostPosted: 15:02 - 05 Oct 2013    Post subject: Reply with quote

arh ha!

Sorry about the long delay on the reply, i took the front dash off, fault checked all the cables, connections etc etc, no result.

Coped with it not starting first time for a few weeks, until i discovered that the engine will cut out and not start if the ignition key is not _exactly_ central on the on position.
if you are riding along, and nudge the key ever-so slightly, it cuts out, giving the warning light (which now seem to change every time).

So looks like this might be because of a faulty ignition barrel. >.<

I'll get back to you if replacing it solves the issue.
____________________
Currently Riding: Yamaha YBR 125 Silver 2007 Model
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

Nemo
Spanner Monkey



Joined: 30 Apr 2010
Karma :

PostPosted: 17:08 - 05 Oct 2013    Post subject: Reply with quote

Had one of these in the workshop the other day.

Is the fuel pump priming? If not, double check cables bit will more likely need a new motor... Chinese crap
____________________
Previously owned: Kawasaki KH125, Suzuki GP125, Suzuki GX 125, Honda CB125 TDC '83
Now own: Honda ntv 600
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

simonjb
Nova Slayer



Joined: 04 May 2013
Karma :

PostPosted: 17:31 - 06 Oct 2013    Post subject: Reply with quote

Nemo wrote:
Had one of these in the workshop the other day.

Is the fuel pump priming? If not, double check cables bit will more likely need a new motor... Chinese crap


The fuel pump not priming is a different issue to this one (the fuel pump issue is a manufacturing issue which only involves the pump, not the power to the pump, and hence no warning light as the ECU does not detect any issue).

Just thought I'd point out Yamaha is Japanese; and they're usually reliable bikes; just a few manufacturing issues with the first injection models.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

Ryan C
L Plate Warrior



Joined: 06 Sep 2013
Karma :

PostPosted: 17:53 - 15 Nov 2013    Post subject: Solved :D Reply with quote

Yesterday i changed the ignition barrel, and this solved all previous issues, and all electronics seem to be working much better. (dash lights brighter, Headlight brighter)

Note:
If you ever change a YBR 125 Ignition barrel, be prepared to get a drill Smile, as they have smooth-headed bolts that are glued in place.

Thansk to everyone who helped me out here Smile

- Ryan
____________________
Currently Riding: Yamaha YBR 125 Silver 2007 Model
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

simonjb
Nova Slayer



Joined: 04 May 2013
Karma :

PostPosted: 17:59 - 15 Nov 2013    Post subject: Reply with quote

No problem, great to hear you got it fixed! I'm planning to fit some heated grips to mine this weeked!
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

Boris the spider
Traffic Copper



Joined: 24 Jan 2013
Karma :

PostPosted: 20:29 - 15 Nov 2013    Post subject: Reply with quote

simonjb wrote:
No problem, great to hear you got it fixed! I'm planning to fit some heated grips to mine this weeked!


Regards the heated grips.

Are they standard ones or the "light" version ?

Apparently YBRs don't like the normal ones due to power drain on system.

And Oxford do the light ones especially for smaller bikes.

I have an R+G set i'd like to fit on mines but warned off doing it.
____________________
Older and greyer than i was , still the same wee bairn at heart.
Riding a wee YBR commuter tool 5 days a week . And a 2005 Kawasaki Z750 for fun.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

simonjb
Nova Slayer



Joined: 04 May 2013
Karma :

PostPosted: 21:46 - 15 Nov 2013    Post subject: Reply with quote

Boris the spider wrote:

Regards the heated grips.

Are they standard ones or the "light" version ?

Apparently YBRs don't like the normal ones due to power drain on system.

And Oxford do the light ones especially for smaller bikes.

I have an R+G set i'd like to fit on mines but warned off doing it.


They're some cheaper ones, but they have loads of good reviews, and I made sure they're low power consumption (~2 Amps max at highest setting of 80 degrees). Not long fitted a new battery anyway, but if it becomes an issue, I have an Oxford Oximiser maintenance charger to keep it topped up.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

simonjb
Nova Slayer



Joined: 04 May 2013
Karma :

PostPosted: 14:51 - 24 Nov 2013    Post subject: Reply with quote

Just to let you guys know, I had an Error Code 19 on my bike this week and it was the ignition barrel as well... but..

I didn't need to replace it, it must be dirt or condensation in the base or something, because I squirted a large amount of switch cleaner into the barrel and it resolved the issue.

If anyone has this issue, try switch cleaner, may not need to replace the ignition barrel!
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts
Display posts from previous:   

Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT + 1 Hour
Page 1 of 1

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 

Debug Mode: ON - Server: peanuts (www) - Page Generation Time: 3.39 Sec - Server Load: 0.84 - MySQL Queries: 16 - CDN Objects: 42 - Page Size: 114.62 Kb