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Author Topic: Problem with G5; no electric start then later engine cutting out and backfiring  (Read 797 times)

clubman

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I'm not suggesting your problem is anything more than a dud battery so much as telling you what happened to me and why it can run for a while and then cut out. But of course it's worth checking the fuses and if any are blown investigating further. I was told that a small batch were known to have left the factory with incorrect wiring and mine happened to be one of them. It was wired correctly - as per the wiring diagram - under warranty and I've had no further problems. Neither does the battery seem to have suffered in any way. (It's only done 15 months mind but if I get a couple of years out of it I'll be happy.)

singhg5

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@Chris:

Sometimes the real cause of the problem is never quite found out but the problem is solved.  About a couple of months back, my G5 engine was cutting, sputtering, and stalled on a very cold day.  I have the link below for you to go through.  In my case, it was spark plug.  Once replaced, the bike ran fine after that.  I don't think a bad spark plug could explain everything - but it worked !

In your case, battery is definitely low and I would say get a new sealed Yuasa battery.  

http://www.enfieldmotorcycles.com/forum/index.php/topic,9358.0.html
« Last Edit: February 14, 2011, 03:51:03 PM by singhg5 »
1970's Jawa /  Yezdi
2006 Honda Nighthawk
2009 Royal Enfield Black G5

Chris-G5

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I checked the fuses and there was a blown fuse. The blown fuse was a 15A and the back up fuse next to it was a 20A. Also in the wiring diagram in the service manual it only shows 20A fuses. So I think this 15A was mistakenly put in at the factory. I went ahead and put in a new sealed absorbed glass mat battery. It read 12.3 volts out of the box. Afterward I checked the voltage at the battery while revving the engine up and the voltage rose to over 13 volts so it seams the charging system is working since I replaced the blown fuse. ;D

Also I noticed the fuel line is showing some cracks. That fuel line makes that tight 180 degree turn from the pump to the injector which I am sure does not help with wear and cracking. It is going to need to be replaced soon. :(

r80rt

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Glad to know it wasn't a major headache!
On the eighth day God created the C5, and it was better looking than anything on the planet.
Iron Butt Association

olhogrider

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  • 2012 C5
Great news about the electrical problem! My experience with F.I. systems is they run high pressure to the injector. Make sure the new hose is up to the task. You wouldn't want a fuel bath on a hot bike! Bear in mind this is just my experience with other bike/auto systems. I know nothing about the RE system.

Marrtyn

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I have had a very similar problem with my G5 early last year.
I blamed everything except the battery. I then tried jump leads from my car and the problem disapeared. Therfore fitted a new battery. On examing my old battery (my dealer),- said one cell had gone caput.

r80rt

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Yeah, fuel line is cheap, I change it on my bikes once a year just for peace of mind.
On the eighth day God created the C5, and it was better looking than anything on the planet.
Iron Butt Association

gashousegorilla

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 That's cool you found it Chris!   
An thaibhsí atá rattling ag an doras agus tá sé an diabhal sa chathaoir.