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Sportster Motorcycle Air intake, Carburetor, EFI, Fuel, and Exhaust Problems, advice and/or how tos for Sporster and Buell motorcycle carburators, Electronic Fuel Injection (EFI), Air Intake, Fuel and Exhaust.

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  #21  
Old 3 Weeks Ago
wedge's Avatar
wedge wedge is offline
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Quote:
Originally Posted by hondo View Post
Well maybe ignored is too strong, maybe overlooked is more accurate.

First and foremost; I've been running my Mikuni with the wrong cable bracket. I always have had fits trying to adjust the cables, ending up maxing out the adjusters. I've got the proper bracket now to install.

Secondly; cable routing, the way I've routed my cables, full left lock tightens the cable but doesn't seem to cause the slide to lift. I'm going to re-route the cables when I change the bracket.

Thirdly; fuel line routing, I had been routing the fuel line (5/16") between the cylinders, then down to the inlet fitting, multiple severe bends. Now the fuel line runs down behind the choke/horn bracket, loops around the base of the front cylinder to the right side and up onto the fitting. One big sweeping bend covered with insulation.

Fixing number one will help fix #2 and #3 probably wasn't a problem but those near kinks of that fat tubing just looked wrong.

Browsing through every intake/exhaust thread by title and reading many of them is how I found pictures of the correct bracket!
It looks like you noticed this, but just in case...

The throttle cables need to be rerouted to the other side of the frame, and you need to flip the cable guide over to the other side to accommodate that. If memory serves, that guide is black high impact plastic that mounts on the front tank mounts.
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  #22  
Old 3 Weeks Ago
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mikeLI_77 mikeLI_77 is offline
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I kept my throttle cables the same as they were from the factory and have had no issues with them. I do have braided cables but they are the same length as my stock ones were. Almost everyone else it seems has had to relocate them to the other side of the frame. I don't know. I don't get any binding, my throttle snaps back just like it always has.
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2002 XL1200C (originally)



Hammer 1250 kit W/ 30° reverse dome pistons, billet 2.25" crush forward offset open air cleaner, billet intake manifold, Impact 560's, Sledge Hammer pushrods, Buell XB heads with crush level head porting, Mikuni HSR 45, 177.5 main, 25 slow, Clip 4th slot from top, Jim's powerglide II lifters,
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  #23  
Old 3 Weeks Ago
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wedge wedge is offline
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Quote:
Originally Posted by mikeLI_77 View Post
I kept my throttle cables the same as they were from the factory and have had no issues with them. I do have braided cables but they are the same length as my stock ones were. Almost everyone else it seems has had to relocate them to the other side of the frame. I don't know. I don't get any binding, my throttle snaps back just like it always has.
You have an 02, so I don't know about that year, but on the 05 (which is what I think the bike in question is also a rubbermount.

When you look at them on a rubbermount, they look like they are too restrained and the angle is too sharp.

Next time you have the tank off, look at yours and just imagine the line of the cables and see if it looks like a tight bend. Maybe you are lucky that it works good, and maybe yours is different than the rubbermounts.

Personally I over analize these things, but I always put thought in how the cables run, even on a stock bike. I have made improvements in the past, and they probably weren't necessary, but...
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  #24  
Old 3 Weeks Ago
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Quote:
Originally Posted by wedge View Post
You have an 02, so I don't know about that year, but on the 05 (which is what I think the bike in question is also a rubbermount.

When you look at them on a rubbermount, they look like they are too restrained and the angle is too sharp.

Next time you have the tank off, look at yours and just imagine the line of the cables and see if it looks like a tight bend. Maybe you are lucky that it works good, and maybe yours is different than the rubbermounts.

Personally I over analize these things, but I always put thought in how the cables run, even on a stock bike. I have made improvements in the past, and they probably weren't necessary, but...
I remember the instructions that came with my carb saying to run the cables on the other side of the frame but I didn't want to buy new cables because I just bought new ones right before buying the mikuni. I get the reason behind it. The cables I bought do have a decent bend to them but it doesn't seem to affect the way it works. Or maybe it does and I just don't notice it. The throttle does snap shut when I let it go from any amount of applied throttle so for me it is working. I would venture to guess that from me having braided cables helps me keep the cables working properly. I have the magnum shielding Black Pearl cables on my bike.
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  #25  
Old 1 Week Ago
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Part of my problem was changing from the 3.3gal tank to a 4.5gal tank. The Custom tank is lower than the peanut tank. When I put my Sporty on a diet the peanut tank goes back on.
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