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Jan 5th, 2007, 05:02 PM
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#1 | | Has posted 500+
Join Date: Mar 2006 Location: lake jackson,tx
Posts: 924 Model: 03 883 XLC-CHOPPER Occupation: welder
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CRANKING UP THE PIGLET YESTERDAY, BEEN AWHILE IN THESE NECK OF THE WOODS  MONTHLY WARM UP, I NOTICED THAT THE FRONT ROCKERBOX WAS HOT HOT TO THE TOUCH AND THE BACK ONE WAS JUST WARM. THIS KEPT FOR THE HOLE 20 MIN OF IDLE. SO IS THIS A NORMAL THING FOR ONE JUG RUNNING HOTER THAN THE OTHER? ALSO THE FRONT PIPE IS WHERE I GET THE BLUEING NONE ON THE BACK. | 
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Jan 5th, 2007, 06:45 PM
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#2 | | More than 100 posts!
Join Date: Dec 2006 Location: Cape Coral, Florida
Posts: 124 Model: '04 FXDL Interests: drag racing, muscle cars, street rods, annoying others
| It is normal on a Harley V Twin for the front cyclinder to be run a little warmer then the back, but what you describe is somewhat extreme and would have me looking for other reasons. | 
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Jan 5th, 2007, 09:45 PM
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#3 | | Has posted 500+
Join Date: Sep 2006 Location: I'm everywhere, I'm everywhere
Posts: 847 Model: 06 flhxi Interests: family,fun, fast chrome Occupation: causing hate and discontent
| front, does it have one pipe and the back have two ? maybe question answered | |
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Jan 6th, 2007, 08:37 AM
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#4 | | Very Active Poster 50+
Join Date: Mar 2004 Location: Arizona
Posts: 95
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If I read this right you are letting the motor idle for 20 mi, first I would say you need a fan moving some air over the motor for that long a period of time. Also at idle you have low oil pressure as well as slow flow which may have something to do with the hot spots. I think I would use a fan and a fast idle on a air cooled motor for a long warm up period of time. Dutch | |
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Jan 6th, 2007, 06:06 PM
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#5 | | Has posted 500+
Join Date: Mar 2006 Location: lake jackson,tx
Posts: 924 Model: 03 883 XLC-CHOPPER Occupation: welder
| ONE IN FRONT ONE IN BACK  COOLING I DON'T THINK IS A ISSUE SINCE IT'S ONLY LIKE 20 DEG, NO HEAT IN THE GARAGE. WHEN I WAS IN TUCSON, IT WAS MORE OF A CRANK UP AND GO. ONE FACTOR I DID'NT METION WAS THAT I'M RUNNIN DRAGS AND A FREE FLOW AIR CLEANER. ( THIS IS WHERE I GET ALL THE RE-JETTIN ANSWERS). SO NO I HAVE'NT RE-JETTED. ONLY ANOYING THING TO THAT IS A LITTLE POPPI'N AND HESITATION USUALLY IN 2 ND. | |
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Jan 7th, 2007, 06:45 AM
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#6 | | Has posted 500+
Join Date: Dec 2006 Location: Stanton, NJ
Posts: 1,298 Model: 04 Dyna WG (with a 240 rear tire) Interests: Harleys, drag racing, family, fishing, my rottweilers, the UFC Occupation: Carpenter/Builder
| If you changed to drags and a free flow air cleaner and haven't re-jetted, you're probably running lean, which would cause the extra heat (well some anyway, not sure how much) you need to properly re-jet and then see if it's still doing the same thing. | |
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Jan 7th, 2007, 05:04 PM
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#7 | | Has posted 500+
Join Date: Apr 2006 Location: Charlotte, NC
Posts: 1,123 Interests: Anything outdoors (climbing, backpacking, fishing, Mtn biking, riding) Occupation: Chemistry teacher
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And running lean isn't very good for the top end... There ya go bro!!!  | |
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Jan 8th, 2007, 10:49 AM
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#8 | | Administrator Frequent Posting Club
Join Date: Jan 2005
Posts: 1,323 Model: Harley FLHX Occupation: Web Developer by day, 25+ years of carb building by day, hey what happened to my day?!
| I'll second these responses, your first order of business needs to be to rejet for those pipes and aircleaner. I'd start by bumping up your idle jet by 1 and don't make any other changes until you get the idle dialed in. Once you get your Harley running richer if you don't see a change then you can start to diagnose from there.
Even though you are warming up your bike in a freezing cold garage, moving air is still more efficient at heat transfer. | |
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Jan 8th, 2007, 02:08 PM
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#9 | | Moderator Has posted 500+
Join Date: Sep 2005 Location: The Shores of Tonto Creek
Posts: 689 Interests: Guns, Hunting, Fishing, 4 wheeling and riding Occupation: Network Administrator
| One other minor detail is Valve adjustment. Sure made my old Iron head run hot. | |
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