Wont run after loose intake
Seasoned HDF Member
Joined: Jun 2010
Posts: 9,332
Likes: 3,874
From: Upstate New York
Sounds like you have dirt in the float needle, or the needle is otherwise sticking and not closing, causing the fuel level in the float bowl to be too high. That will cause a rich mixture. Check the float needle for leakage/dirt/wear or anything that is causing the needle to stick.
Elite HDF Member
Joined: Sep 2007
Posts: 4,468
Likes: 12
From: Bluffton, South Carolina
Clean/replace the needle, we just had a Mikuni in the shop with the carb running over. Inspected the needle and it looked fine, but still ran over. Replaced it and all was well.
John
John
Outstanding HDF Member
Joined: Apr 2012
Posts: 2,938
Likes: 30
From: North Florida
Sounds like you have dirt in the float needle, or the needle is otherwise sticking and not closing, causing the fuel level in the float bowl to be too high. That will cause a rich mixture. Check the float needle for leakage/dirt/wear or anything that is causing the needle to stick.
Thread Starter
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Tourer
Joined: Jul 2012
Posts: 325
Likes: 2
From: Rancho Cucamonga, CA
Ok, I pulled the carb apart ,pulled out the float needle and cleaned and inspected it. Blew compressed air thoughout the whaole thing. Put everything back together and took for a small ride up and down the street. Seems to be good again, but might be a little on the rich side still. I will keep an eye on it. Thanks for the help guys, much appreciated!!
Seasoned HDF Member
Joined: May 2008
Posts: 21,183
Likes: 12,762
From: South Carolina
1sandking1: consider changing all your fuel lines while you are at it, they could be deteriorating.
Last edited by Dan89FLSTC; Oct 26, 2012 at 01:43 PM.
Dirt don't hurt
Joined: Jan 2011
Posts: 21,066
Likes: 4,567
From: Haslet Texas
When I first read his original post he was talking about a loose intake (didn't know how long it was loose) and that causes a lean condition.
I was thinking someone had adjusted the carb without seeing the intake was loose and there for needed to be readjusted after the intake was tightened.
That is all I was saying.
Road Master
Joined: Oct 2011
Posts: 957
Likes: 2
From: Carlsbad Springs Ontario
Try a treatment of SeaFoam fuel cleaner or equivalent in the gas just to clean out the varnish etc. Its good stuff in a can.
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Road Master
Joined: Oct 2011
Posts: 957
Likes: 2
From: Carlsbad Springs Ontario
Also .. if your getting the black fluffy carbon on both plugs ., suggest you go to new style irridium plugs and or check for a weak ign. coil .
Check coil by removing plugs , ground plug you are not testing , use a cheap plug tester at night and in the dark , spark should be white and bright , if blueish and weak , replace coil.
Check coil by removing plugs , ground plug you are not testing , use a cheap plug tester at night and in the dark , spark should be white and bright , if blueish and weak , replace coil.
Thread Starter
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Tourer
Joined: Jul 2012
Posts: 325
Likes: 2
From: Rancho Cucamonga, CA
Ok, we took our ride this weekend (under 100 miles), bike ran good, but has a huge flat spot mid throttle and unfortnately its cruising speed on the freeway about 65-70 mph. Had this problem when I first got the bike, rejetted to larger jets and it fixed it. Now I need to rejet again, seems odd, but it cant be anything else at this point.