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Author Topic: Rough idle/stalling...  (Read 3357 times)

olhogrider

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Re: Rough idle/stalling...
« Reply #30 on: April 28, 2011, 03:00:58 AM »
Dan. you wouda figgered that out on your own in two seconds.  It ain't rocket surgery bro ;)

Scott

Actually I was able to squeeze a 90 degree screwdriver in there but could only turn less than 1/4 turn. Not enough to make a difference. Now that I know which way to turn I'll give it another go.

GSS

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Re: Rough idle/stalling...
« Reply #31 on: April 29, 2011, 01:42:43 AM »
I had a few stalls during the first 200 miles especially when the engine was warm. This mostly happened after downshifting to come to a halt. New iridium plug as well as the engine getting smoother as it breaks in seems to have cured this problem.
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Ducati Scotty

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Re: Rough idle/stalling...
« Reply #32 on: April 29, 2011, 01:48:51 AM »
Which plug are you running?

Scott

GSS

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Re: Rough idle/stalling...
« Reply #33 on: April 29, 2011, 01:59:55 AM »
NGK BR8EIX.  This was the recommended plug for 500cc RE in the NGK catalog as well.
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singhg5

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Re: Rough idle/stalling...
« Reply #34 on: April 29, 2011, 02:48:59 AM »
NGK BR8EIX.  This was the recommended plug for 500cc RE in the NGK catalog as well.

Sat Sree Akaal:

Do you have a EFI UCE bike ?  If so, there are a few points to consider - These bikes are originally fitted with Bosch WR7 DDC4 from the factory in Chennai. We cannot get them here in USA.  The closest equivalent to these are BPR 6ES or BPR 6EIX (iridium).  

Some people might consider NGK of 7 heat range to be more appropriate. Others may think of switching to two plug system - colder (NGK 7) in summer and hotter (NGK 6) in winter. Heat range of NGK runs opposite to that of Bosch - as the number increases the plug becomes COLDER in NGK and HOTTER in Bosch.

It seems that NGK catalog has not been updated for these new bikes and still recommend the heat range 8 that was used for the older engines. The plug BR 8EIX will work but it is a COLD plug that may not fully burn the fuel and at some point start to deposit carbon.  Secondly, this plug is not projected whereas original Indian plug is projected so there is a slight difference in the location of spark.  

If you want, buy a BPR 6EIX plug and try in your bike - you will see the difference in how the pick up changes.  

I also had a heat range 8 NGK plug in my bike long time ago. When these bikes were new and I had a starting problem with my G5, we had a very extensive discussion on finding right spark plug (link below). Since then and after careful investigation and experimentation, it became clear that the heat range should be 6 for NGK to match Bosch OEM plug.

The link below has lot of useful input from people from around the world that is worth going through.  

http://www.enfieldmotorcycles.com/forum/index.php/topic,6334.0/all.html
« Last Edit: April 29, 2011, 03:17:31 AM by singhg5 »
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GSS

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Re: Rough idle/stalling...
« Reply #35 on: April 29, 2011, 03:28:31 AM »
Thanks for the info. It is a C5 UCE and definitely great fun to own. Hopefully we saw our last snowflake this morning and can look forward to a few nice months. The Bosch WR7 DDC4 combined with a new engine ran a bit rough and the difference with NGK was instantaneous. I did read the extensive discussion about the heat range differences and US Bosch equivalents, and this NGK is pretty close to what is needed as there is a slight difference in how both companies designate their plugs.

I will definitely pick up a BPR 6EIX next time and give it a try. NGKs and even plain old Champions have always seemed to work better than Bosch in all my miscellaneous projects over the years. Anyway I will need an excuse to "decarbonize" the combustion chamber in a couple of months......who knows, that might be a good time to wrangle in a 600+ cc cylinder!
« Last Edit: June 11, 2011, 12:46:46 PM by GSS »
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Ducati Scotty

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Re: Rough idle/stalling...
« Reply #36 on: April 29, 2011, 11:41:14 AM »
The P in the NGK plug number means projected tip, something important to the UCE engine.  And we can get the Bosch plugs in the US now:
http://nfieldgear.com/enfield-store/maintenance-repair/engine/spark-plugs.html

Scott

t120rbullet

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Re: Rough idle/stalling...
« Reply #37 on: April 29, 2011, 12:54:37 PM »
NGK BR8EIX.  This was the recommended plug for 500cc RE in the NGK catalog as well.

That plug is for the old Iron motors.
The UCE takes a BPR6EIX
CJ
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ScooterBob

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Re: Rough idle/stalling...
« Reply #38 on: April 29, 2011, 02:34:48 PM »
Actually I was able to squeeze a 90 degree screwdriver in there but could only turn less than 1/4 turn. Not enough to make a difference. Now that I know which way to turn I'll give it another go.

How about loosening the clamps and rotating the throttle body until you can get to the screw? It's MUCH easier to do that way. New air bypass screws are not to be had currently if you booger the one you have whilst trying to adjust it ......
Spare the pig iron - spoil the part!

singhg5

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Re: Rough idle/stalling...
« Reply #39 on: April 29, 2011, 09:46:56 PM »
..we can get the Bosch plugs in the US now:
http://nfieldgear.com/enfield-store/maintenance-repair/engine/spark-plugs.html

Thanks Scott for informing that Bosch is now available in US.  I have ordered one today as I really want to see it and try it.  I have never seen that plug because the dealer who sold me G5 had replaced the original (Bosch) plug with B8ES without informing me  >:(.  A few months later when bike would not start I pulled the plug and found out that I was given a cold plug, without resistor, with non-projected tip. It always bothered me that the dealer did not discuss with me that he had changed my bike's plug with a non-matching plug. Some dealers are neither knowledgeable nor trustworthy. Since then I am more careful about them.
« Last Edit: April 30, 2011, 03:38:19 AM by singhg5 »
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GSS

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Re: Rough idle/stalling...
« Reply #40 on: April 30, 2011, 03:28:07 AM »
That plug is for the old Iron motors.
The UCE takes a BPR6EIX
CJ
Sounds good. Will pick one up soon. Thanks.
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Andy

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Re: Rough idle/stalling...
« Reply #41 on: April 30, 2011, 09:48:04 PM »
Sat Sree Akaal:

Do you have a EFI UCE bike ?  If so, there are a few points to consider - These bikes are originally fitted with Bosch WR7 DDC4 from the factory in Chennai. We cannot get them here in USA.  The closest equivalent to these are BPR 6ES or BPR 6EIX (iridium).  

Some people might consider NGK of 7 heat range to be more appropriate. Others may think of switching to two plug system - colder (NGK 7) in summer and hotter (NGK 6) in winter. Heat range of NGK runs opposite to that of Bosch - as the number increases the plug becomes COLDER in NGK and HOTTER in Bosch.

It seems that NGK catalog has not been updated for these new bikes and still recommend the heat range 8 that was used for the older engines. The plug BR 8EIX will work but it is a COLD plug that may not fully burn the fuel and at some point start to deposit carbon.  Secondly, this plug is not projected whereas original Indian plug is projected so there is a slight difference in the location of spark.  

If you want, buy a BPR 6EIX plug and try in your bike - you will see the difference in how the pick up changes.  

I also had a heat range 8 NGK plug in my bike long time ago. When these bikes were new and I had a starting problem with my G5, we had a very extensive discussion on finding right spark plug (link below). Since then and after careful investigation and experimentation, it became clear that the heat range should be 6 for NGK to match Bosch OEM plug.

The link below has lot of useful input from people from around the world that is worth going through.  

http://www.enfieldmotorcycles.com/forum/index.php/topic,6334.0/all.html


I put in a BPR8ES since the 6 is near to impossible to find around here.  I thought it was a hotter plug, not colder - so I guess that's the new thing I learned today, and thank you for that.  I'll keep searching out that hotter plug.

As far as rough idle and stalling goes, I made the error of dumping a litre or so of last year's emergency jerry can into the tank.  Good God, what a difference one stinking litre of bad gas can make!  It'd stall out at every light, and wouldn't stay running at all.  I immediately filled up the tank with the good stuff, but I couldn't fix the problem until I ran some Lucas injector cleaner through it and took it for a good run.  Seems to have settled down again and purrs nice and smooth as it ought.

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GSS

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Re: Rough idle/stalling...
« Reply #42 on: April 30, 2011, 11:52:19 PM »
Autozone and a couple of other chains have BPR6EIX available for 6.99.  I just ordered a couple and they will have them in about 2 days.

I had to do this to reduce your stress level  :D
« Last Edit: June 11, 2011, 12:46:04 PM by GSS »
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singhg5

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Re: Rough idle/stalling...
« Reply #43 on: May 01, 2011, 03:30:28 AM »
Autozone and a couple of other chains have BPR6EIX available for 6.99.  I just ordered a couple and they will have them in about 2 days.

I had to do this to reduce SinghG5s stress level  :D

Sandhu Ji:

You are stress buster  ;D !
1970's Jawa /  Yezdi
2006 Honda Nighthawk
2009 Royal Enfield Black G5