guzziriders.org - moto guzzi forum Homepage
Forum Home Forum Home > Technical > General Electrical issues
  New Posts New Posts RSS Feed - New Battery, No Start
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

New Battery, No Start

 Post Reply Post Reply Page  <12
Author
Message
Mike H View Drop Down
Senior Member
Senior Member
Avatar

Joined: 21 May 2014
Location: East Anglia
Status: Offline
Points: 6169
Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 11 Jul 2018 at 19:26
To start mine when flooded (for example having mistakenly first used choke in hot weather)

Chokes OFF, hold down starter button and repeatedly open / close twist grip, to get some neat air into it, eventually should start and run. Was a while ago though since I did this.

I remember someone telling me the chokes are only for very cold weather, and if not, just twist a couple of times while starting.

HTH


"Chicken nuggets don't dance on a Tuesday."
Back to Top
Brian UK View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Surrey
Status: Offline
Points: 10175
Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jul 2018 at 07:11
Have you actually checked you have sparks? If the kill switch is not original it might not be wired correctly.
Brian.

Better 5 minutes late in this world than years early in the next.
Back to Top
iansoady View Drop Down
Senior Member
Senior Member
Avatar

Joined: 23 Jul 2017
Location: Birmingham
Status: Offline
Points: 999
Post Options Post Options   Thanks (0) Thanks(0)   Quote iansoady Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jul 2018 at 10:22
As Brian said. Some kill switches close a connection, others open it.

Checking for a spark with the plugs on the cylinder head must be an early port of call. If you have no spark there then that's what you need to be looking at.
Ian
1982 V50
1952 Norton ES2
Back to Top
Mike H View Drop Down
Senior Member
Senior Member
Avatar

Joined: 21 May 2014
Location: East Anglia
Status: Offline
Points: 6169
Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jul 2018 at 20:07
Reading this again, likely something changed when battery was changed. A wire is not connected or to the wrong place.




"Chicken nuggets don't dance on a Tuesday."
Back to Top
Ogmios View Drop Down
Falcone
Falcone
Avatar

Joined: 03 May 2016
Location: Dublin
Status: Offline
Points: 39
Post Options Post Options   Thanks (0) Thanks(0)   Quote Ogmios Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jul 2018 at 21:50
Originally posted by Mike H Mike H wrote:

Reading this again, likely something changed when battery was changed. A wire is not connected or to the wrong place.

Yes, as a friend of mine put it when i was in a fix with a...  fix, "What was the last thing you messed with?" Disapprove
Remembering that has paid off many times since. Wink
Appears bright from a distance / dim up close.
Back to Top
Omobono View Drop Down
Senior Member
Senior Member
Avatar

Joined: 27 Nov 2015
Location: Essex
Status: Offline
Points: 281
Post Options Post Options   Thanks (0) Thanks(0)   Quote Omobono Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2018 at 16:14
Hi all again,
went to the garage on Sunday (garage is away from home so I drive there during weekends only) and I have noticed that I have no spark. I have tried to only leave the big cables connected (without the smaller ones for, say, satnav) and still no joy.

To clarify: the old battery (a Motobatt identical to the new one) would not keep the charge but would work fine when charged. After I started the bike with the jump starter and rode it for, say, half an hour it was able to work perfectly and start the bike repeatedly without sign of tiredness. However, one week later it would not be able to start the bike because the power was too weak.

I decided to change the battery when, after the jump start, I stopped the bike after a short time. My aim was to see how long does it take before I have the battery fully charged and functioning as I did not want to ride around with a bike that leaves me stranded if the engine dies on me during the first 15 or 20 minutes of operation. This is exactly what happened, the battery was too weak to start the engine after refuelling.

Before dismounting the old battery I took careful note of the cables: the two big ones and then two small ones on the "negative" side and one small one on the "positive" side, and I have put them back exactly as they were. I have also dismounted the battery last Sunday and searched for "rogue cables", none found.

I begin to think that there might be a contact or defect inside the kill switch? However, how are the odds that it happens just when I install the battery? 

We aren't talking a delicate flower here. Ah, I forgot. I checked all the fuses and all the termination of the electronic injection, installed last year but flawless up to now. I have also paid attention that the spark plugs are well pushed inside the termination of the cables in order to ensure the spark.

Never have I had such a mystery on such a simple bike. And what bugs me is that when the problem is found it will likely be something very stupid.
Back to Top
Omobono View Drop Down
Senior Member
Senior Member
Avatar

Joined: 27 Nov 2015
Location: Essex
Status: Offline
Points: 281
Post Options Post Options   Thanks (0) Thanks(0)   Quote Omobono Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2018 at 16:15
"Chokes OFF, hold down starter button and repeatedly open / close twist grip, to get some neat air into it, eventually should start and run. Was a while ago though since I did this."
 
But will I not flood the cylinders?
Back to Top
cyclobutch View Drop Down
Senior Member
Senior Member
Avatar

Joined: 08 Sep 2015
Location: Essex Branch
Status: Offline
Points: 757
Post Options Post Options   Thanks (0) Thanks(0)   Quote cyclobutch Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2018 at 17:10
So you've changed the battery and now you have no sparks. And you've connected the battery the right way round. Fitting the battery has disturbed a cable, and/or blown a fuse. 
Butch
V50 II - 'The Black Pearl'
T3 - 'Blue'
Eldo Loop - 'Jug'
Back to Top
theone&onlymin View Drop Down
Senior Member
Senior Member


Joined: 14 May 2014
Location: United Kingdom
Status: Offline
Points: 789
Post Options Post Options   Thanks (0) Thanks(0)   Quote theone&onlymin Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2018 at 17:42
How about the big spade connector behind the reg/rectifier? You can easily disturb it. Did that once and pulled my puzzler for quite a while so I did.
Cheers
Min
Back to Top
Dave P. View Drop Down
Senior Member
Senior Member


Joined: 12 Jan 2015
Location: Northants
Status: Offline
Points: 2689
Post Options Post Options   Thanks (0) Thanks(0)   Quote Dave P. Quote  Post ReplyReply Direct Link To This Post Posted: 17 Jul 2018 at 18:32


Before dismounting the old battery I took careful note of the cables: the two big ones and then two small ones on the "negative" side and one small one on the "positive" side, and I have put them back exactly as they were. I have also dismounted the battery last Sunday and searched for "rogue cables", none found. . [/QUOTE]

That doesn't seem right. One small one on the positive side. What about the heavy cable to the starter motor? Or am I misunderstanding the post?

It almost seems that the battery has been fitted arse about face.

Edited by Dave P. - 17 Jul 2018 at 18:36
TO LIVE OUTSIDE THE LAW YOU MUST BE HONEST.

1971 V7 Special. 1972 850GT.
1970 T120 Bonnie. 2009 500 Bullet.
Back to Top
Mike H View Drop Down
Senior Member
Senior Member
Avatar

Joined: 21 May 2014
Location: East Anglia
Status: Offline
Points: 6169
Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike H Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 2018 at 11:01
So it has electronic ignition, which make?

Implication is that changing the battery has stopped it working. 


"Chicken nuggets don't dance on a Tuesday."
Back to Top
Ken-Guzzibear View Drop Down
Moderator Group
Moderator Group
Avatar

Joined: 13 May 2014
Location: Sileby Leics
Status: Offline
Points: 5450
Post Options Post Options   Thanks (0) Thanks(0)   Quote Ken-Guzzibear Quote  Post ReplyReply Direct Link To This Post Posted: 18 Jul 2018 at 11:57
Top tip take pics before messing with electrikery ....as I can't SEE it hopefully you have blown a fuse, if you have, as may be the case wired it back to front, that will have buggered the reg/rectifier and blown fuse if the fuse is blown check the wiring, to be fair ALL +ve ought to be marked RED and ALL Earths ought to be marked black The Thick earth goes direct to the frame the +ve to the starter ...... always difficult if someone has added "stuff" the smaller +ve wire ought to go to the rectifier .....
The Older i Get, The Better I Was
Back to Top
 Post Reply Post Reply Page  <12
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.00
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.063 seconds.