Broken Vstrom - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
V-Strom Service and Maintenance Questions and Discussions Share your service and maintenance information-questions. Please include your year and model in the text of your post.

 3Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 18 Old 07-17-2019, 05:38 AM Thread Starter
Stromthusiast!
Junior Trooper
 
Join Date: Jul 2019
Posts: 8
Broken Vstrom

Hi all,

I have a bit of a problem. I've just picked up a second hand 2005 VStrom - it had a few issues like a sticky ignition but nothing too serious.

After a few days of riding it started to refuse to turn on with the F1 error. I read here how to put it into dealer mode and read the codes it was sending: C41 (Fuel Pump Control System (Fuel Pump Relay)), C44 Heated Oxygen Sensor (HO2S), C49 (PAIR Control Solenoid Valve).

I called recovery who prodded around the bike but they couldn't get it to reset - disconnected the battery and reconnected to come back to the same errors. Recovery brought it home.

I couple of days later I go back out and try to start the bike - it starts fine.

I got a friend to have a look and found the voltages in the battery were a bit low, so we replaced it with a new one. We found that we could replicate a similar condition reliably by turning the bike off with the kill switch (something I never do normally.) After a few seconds the error code would pop up C32 (Injector Signal #1 ( Front)), C33 Injector Signal #2 (Rear), C41 (Fuel Pump Control System (Fuel Pump Relay)), C49 (PAIR Control Solenoid Valve.) These errors could be cleared by turning the key off then on again.

We looked at the other kill switches in the kickstand and the clutch. The kickstand kill switch had the same effect as the red kill switch - same error codes, same ability to reset with the key.

The clutch killswitch did nothing, the bike starts with the clutch out - the switch must be broken.

I brought the bike home again and everything is fine - I'm feeling pretty good about it. Hard learning in brain to always turn the bike off on the key.

Next day I go out to put some GT85 into the sticky ignition and boot (gotta pull the key towards the handbars to turn it.) I try to turn the bike back on and get an F1 error.

I flick the kill switch on and off, nothing, I play with the kick stand and the the gears, nothing. I eventually disconnect the clutch sensor - and the error clears, bike turns on.

I turn it off, turn it back on and it sometimes errors out, sometimes fires up - connecting and disconnecting the clutch sensor stops having an effect.

I get the bike running and take it out for a half our drive - after about 20 minutes when I bring it up to traffic lights and it goes idle it starts struggling and eventually stalls. It might be the dying grumble of the engine and a compelte red herring but I'm pretty sure I can hear the (I'm not going to guess what it is, it's the pump that whines for a few seconds when you first turn the key - fuel primers?) going which is a sound I don't usually hear. Might just be drowned out by the engine usually though.

This is the first bike I've owned - I had a feeling I shouldn't have brought privately first time round due to my lack of knowledge but it was recommended to me by someone who knew the bike. I'm an engineer by trade so know my way around a multimeter, but have never dug around in a bike before - I know someone who maintains his own bikes and has offered to help, but he's never worked on a VStrom. It's booked in for a service but the mechanics are all booked up for weeks so that's a long way off.

Any help or recommendations of what could be wrong would be greatly appreciated.
ch42 is offline  
Sponsored Links
Advertisement
 
post #2 of 18 Old 07-17-2019, 06:05 AM
Stromthusiast!
 
Join Date: Jun 2015
Location: friendsville,tn. 20miles from the Dragon
Posts: 143
Try some electrical cleaner in the key slot couple times then dry lube. Had the same problem with my'08. Shop charged 224.00$, then said they couldn't duplicate the problem. The fix worked for me.🏍💨
emjrrider is offline  
post #3 of 18 Old 07-17-2019, 10:41 AM
Stromthusiast!
 
blaustrom's Avatar
 
Join Date: Apr 2008
Location: north east, Buffalo NY area
Posts: 2,490
You obviously have some intermittend electrical problem. If your clutch switch is broken you must replace it. The absence of this contact causes all kind of strange behavior!

What model, where is the bike located, how many miles, what service items have been done to it recently to your knowledge?

Known possible trouble spots of older specimens are the main electrical connector under the left fairing, various connectors tucked behind the radiator, the ignition switch, clutch switch, side stand switch, starter switch (causes headlight problems).

Even if the clutch switch cures your current issues I recommend to take the Tupperware of, remove the tank and check all these connectors for corroded or burned contacts. If good fill with dielectric grease and put back together.

Use your multimeter to check the safety switches.

Look for chafed wires anywhere, that could also cause intermittent issues.

Let us know, what you find. It will live again after a little TLC.

.
Blau1 2004 DL650-sold
Blau2 2014 DL1000A

Last edited by blaustrom; 07-17-2019 at 11:20 AM.
blaustrom is online now  
 
post #4 of 18 Old 07-17-2019, 11:04 AM
Stromthusiast!
 
Join Date: Feb 2015
Location: Amsterdam
Posts: 408
Also install a voltmeter, learn the normal voltages for your bike, and keep an eye on it. On older 2003+ DL1000s, at some point in time the glue that holds the magnets to the rotor fails, and all magnets stick together (or worse). This greatly reduces the charging capacity (voltage) of the bike, leading to erratic behaviour and premature battery discharge/failure.

This can easily be diagnosed by performing the stator/rotor test as detailed in the maintenance manual.
BackPacker is offline  
post #5 of 18 Old 07-17-2019, 01:58 PM Thread Starter
Stromthusiast!
Junior Trooper
 
Join Date: Jul 2019
Posts: 8
The model is DL 650 K4
It's located in Bristol, UK
~74k miles on the clock
The last service items were: New brake pads, oil top up, lubed and adjusted chain - that was on the 17th June. Standard service, new oil filter and spark plugs - that was on the 13th March.

I just tried to fire it up again this afternoon and.....well....now it only starts with some enthusiastic twisting on the throttle. This started yesterday. If I let go of the throttle at all, it stalls out. I filmed it to see if anyone could hear what's wrong - it sounds very sick.

Sorry for the URL format - forums say I'm too new to post it.

charden.net/~byte/StromBadStart.mp4
ch42 is offline  
post #6 of 18 Old 07-17-2019, 02:11 PM
Stromthusiast!
 
blaustrom's Avatar
 
Join Date: Apr 2008
Location: north east, Buffalo NY area
Posts: 2,490
So how about the clutch safety switch?

.
Blau1 2004 DL650-sold
Blau2 2014 DL1000A
blaustrom is online now  
post #7 of 18 Old 07-17-2019, 03:06 PM
Stromthusiast!
 
Join Date: Jun 2013
Location: Portland OR
Posts: 633
It's my understanding the clutch switch isn't tied into the ECU until '07? Only a safety thing.

2007 DL 650 with assorted upgrades
Solo is offline  
post #8 of 18 Old 07-17-2019, 03:44 PM Thread Starter
Stromthusiast!
Junior Trooper
 
Join Date: Jul 2019
Posts: 8
I found the attached.

I chucked a multi-meter across the terminals on the clutch switch and pulled the leaver a few times - nothing, it's very broken.

Someone has 'fixed' the switch by putting this thing on the wire leading to it - there are metal teeth biting into the wire shorting it to fake the switch being closed.

I looked at the wiring diagram and apparently the clutch wire is connected inline to the starter switch - so leaving the starter of it's shielded from the ECU. So I slapped my multi-meter into the ends of the plug (sitting on my thumb in the picture) and took a reading - the reading jumped around all over the place as I wiggled it.

I thought I'd test by shorting the plug itself (so even if the blue thing fails the plug should still be connected) and turned the key. The bike backfired loudly and didn't start.

What's the best way to solve this blue thing? Strip it off and twist the wire together? Trace it back to the source and replace the whole wire / plug assembly? How solid does the joint need to be?
Attached Images
File Type: jpg IMG_20190717_201457.jpg (133.8 KB, 9 views)
ch42 is offline  
post #9 of 18 Old 07-17-2019, 07:05 PM
Stromthusiast!
 
blaustrom's Avatar
 
Join Date: Apr 2008
Location: north east, Buffalo NY area
Posts: 2,490
Remove the blue thing. Make sure that the two wires are not severed. If they are still at least kind of intact, insulate them with tape.

How about that clutch switch? Looking at the PO "repair" it's probably dead. Or he installed an aftermarket clutch lever that has the switch activating bump missing. Take the lever out and inspect what's going on with the switch.
Gert likes this.

.
Blau1 2004 DL650-sold
Blau2 2014 DL1000A
blaustrom is online now  
post #10 of 18 Old 07-19-2019, 08:07 AM Thread Starter
Stromthusiast!
Junior Trooper
 
Join Date: Jul 2019
Posts: 8
I took the blue "repair" off and the wires looked ok, just a cut through the sheath and a slight dent in the metal wire. I taped it up and bought a new clutch switch, which I attached.

I turned the bike on and hit the starter button.

The starter motor went right away and the engine very weakly tried to start, chugged a couple of times but never managed to get going. I let go of the starter and it immediately dies. After a couple of seconds it gives a sad little "cough" out of the exhaust.

I'm keen to get to the bottom of this and all the mechanics are booked up for a month - so I really appreciate the help!
ch42 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome