cv carb
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Joined: Apr 2009
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From: forest city n.c.
The enricher leaking is very rare and I probably should not have even mentioned that, at this point.
Now this is gonna sound dumb, but I had similar symptoms once and turned out to be a crappy spark plug. They were "V-fire" plugs and with low miles. Try some new Champion RN12YC plugs (they're cheap) and lets eliminate that possibility
Now this is gonna sound dumb, but I had similar symptoms once and turned out to be a crappy spark plug. They were "V-fire" plugs and with low miles. Try some new Champion RN12YC plugs (they're cheap) and lets eliminate that possibility
changing plugs and wire was the first thing I did. I thought at first it was a firing problem instead of a fuel problem. now I don't know what it is. rode it 500 miles thursday and it ran good other than that stumble.
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Joined: Apr 2009
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From: Northern Ontario
I was having same symptons and turned out to be leaking voes, I also set the air/ fuel to 2 turns out and no more sputtering or run on. I'm running 45 and 180 jets .
Last edited by RidemyEVO; Aug 6, 2010 at 08:21 AM.
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Joined: May 2010
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From: Eastern Washington
Sorry to poach your thread but I'm having similar trouble with my '91 FLHS. Mine is fouling though after about 300 miles of riding, as well as the stumble. The carb has a 190 main jet. I'm at about 400' above sea level, do you think this is too rich? I've got a Clymer and it says it should have a 185 stock.
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From: forest city n.c.
Did you have to replace the voes switch to fix problem? I may try turning my mixing screw out another 1/4 turn. that would put it out 1 1/2 turn. also, why does my enricher goes to crap when I turn my mixing screw out?
Stellar HDF Member
Joined: Apr 2009
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From: Northern Ontario
What happened was I moved the timing setup to the timing plate so I now use my timing light with out getting full of oil, I just brought the bike into a well known mechanic that I trust and wanted him to check the timing so I would have a piece of mind as I was finding I couldn't get a steady 35 degree advance and it was him that told me the voes was gone and it hadn't been advancing right, I actually had the bike out the daybefore for a 300 mile trip and thought it was running great. Once he changed the voes ( I would have done it myself after finding out but he already had 1/2 hr troubleing time in ) I noticed a major differnce and then decided to work on the spittering sputtering [problem and set the mixture screw to 2 turns and has been running great all around. By the way after he changed the voes he didn't have to touch the timing I already had it set to 35 degrees right on.
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Joined: Oct 2009
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From: Joplin, Missouri
Have you gone to a hi flow air cleaner, and less restrictive pipes? I found that when I made those mods on my bike, I actually needed to move down a jet size, to a 180. If you run your bike at full throttle, and find that backing off the throttle a little actually helps, its probably too rich.
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Joined: May 2010
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From: Eastern Washington
It does have less restrictive pipes and a hypercharger with k&n air filter. I'm going to try jets this week and see what happens.
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Joined: Apr 2009
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From: forest city n.c.
I did back out another 1/4 turn on mixing screw and took it down the road and it did help. it is as close to perfect as it has been in a while. going out another 1/4 turn would probably do the trick, but for now I'll ride it a while and see how it does. I did notice that i have the "stock" main jet #185 in carb.
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Joined: Jun 2007
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From: North Atlanta Area, GA
I did back out another 1/4 turn on mixing screw and took it down the road and it did help. it is as close to perfect as it has been in a while. going out another 1/4 turn would probably do the trick, but for now I'll ride it a while and see how it does. I did notice that i have the "stock" main jet #185 in carb.
The main jet doesn't have any effect at all until you are about 3/4 of wide open throttle anyway. It's the idle jet and the slide that control virtually all of the mixture up until that point - and you spend a LOT more running time below 3/4 throttle than you do over it!