Am I running too lean? Why?
#1
01-03-2012, 11:01 PM
Am I running too lean? Why?
My bike seems to be running a little lean and hot and it pings a little taking off from a stop ( not at speed though).
This is a change from how it was before. The only change has been new Autolite plugs this year and a change to the air filter. I found when I cleaned and reoiled it that it had been installed in such a way that the filter was sitting about .080 or so off of the base plate. I corrected that situation.
I used a water spray bottle to check for vacuum leaks but it didn't seem to have any.
It has V&H long shots with lollipop baffles only and the K&N air filter. Engine is stock AFAIK. Just pulled the float bowl to check jets. 48 pilot, 165 main.
The plugs especially the rear are very clean.
Anyone have any thoughts on what could be wrong here?
Thanks.
This is a change from how it was before. The only change has been new Autolite plugs this year and a change to the air filter. I found when I cleaned and reoiled it that it had been installed in such a way that the filter was sitting about .080 or so off of the base plate. I corrected that situation.
I used a water spray bottle to check for vacuum leaks but it didn't seem to have any.
It has V&H long shots with lollipop baffles only and the K&N air filter. Engine is stock AFAIK. Just pulled the float bowl to check jets. 48 pilot, 165 main.
The plugs especially the rear are very clean.
Anyone have any thoughts on what could be wrong here?
Thanks.
#3
01-03-2012, 11:17 PM
If you've changed pipes/mufflers AND air cleaner, you need a stage 1 tune or flash. Changing one or the other isn't a big deal, but once you open up both ends with more air, it needs the ECM set to the proper levels for the air/fuel mixture.
At least, that's how it's been explained to me.
At least, that's how it's been explained to me.
#4
01-03-2012, 11:28 PM
He has a carb lol
I don't know how the weather is where you are but I think cold air can mess up your air/fuel mixture. There's a screw on the bottom of your carb that you can back out to make it run richer
I don't know how the weather is where you are but I think cold air can mess up your air/fuel mixture. There's a screw on the bottom of your carb that you can back out to make it run richer
#5
01-03-2012, 11:34 PM
Well crap. I didn't see the bike info under his name. Thanks for pointing that out to me.
#6
01-04-2012, 12:07 AM
Tourer
Join Date: Aug 2011
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Sounds like your new plugs are not the right kind. Try a cooler plug, and higher octane gas.
See: http://www.theultralightplace.com/sparkplugs.htm
and
http://www.dansmc.com/sparkplugs1.htm
See: http://www.theultralightplace.com/sparkplugs.htm
and
http://www.dansmc.com/sparkplugs1.htm
Last edited by Druid; 01-04-2012 at 12:16 AM.
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#9
01-04-2012, 01:16 AM
Road Warrior
Join Date: Nov 2008
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What gap you runnin on those plugs? Why you buy auto lites?
Have you adjusted your accelerator pump so it strokes on very early when you twist the wick? Give that a try. I don't think ypou have much raw fuel being sprayed into the throat of that carb when your launching off the line!
what is your top end performance like?
Hatch.
Have you adjusted your accelerator pump so it strokes on very early when you twist the wick? Give that a try. I don't think ypou have much raw fuel being sprayed into the throat of that carb when your launching off the line!
what is your top end performance like?
Hatch.
