Sportster Carb

socalrebel · Oct 4th, 2009, 08:30 PM

I have a '89 sporty 883 with the old style Mikuni carb. It seems that the carb is all but completely shot and I can't get parts for it. I need to upgrade to a Mikuni 42. Is there any where to get a good used one or will I just have to bite the bullet and pay the $360 for a new one?

chevito · Oct 4th, 2009, 08:38 PM

criag list just bought one for 100.00

smitty901 · Oct 4th, 2009, 08:45 PM

Quote:

Originally Posted by socalrebel

I have a '89 sporty 883 with the old style Mikuni carb. It seems that the carb is all but completely shot and I can't get parts for it. I need to upgrade to a Mikuni 42. Is there any where to get a good used one or will I just have to bite the bullet and pay the $360 for a new one?

You need to explane what you mean by shot?
more details are needed you should have no real problem rebuilding the the carb.

Hobbit · Oct 5th, 2009, 04:18 AM

as what Smitty says ant carb can be rebuilt whats wrong with it?

Breeze3at · Oct 5th, 2009, 11:20 AM

I just did a quick search on e-bay and saw several new 42mm Mikuni kits for $250 buy it now. More looking would probably turn up a better price.

NEWHD74FAN · Oct 5th, 2009, 11:51 AM

Socalrebel, the stock Keihin carb is actually quite a good carb and has been used for what seems like a ton of years so all the kinks were worked out long ago. Brand new rebuild kit is about $40 and really not much to "wear" out. Most common problem is varnish, rust, combustion deposits clogging openings, sticking parts like the CV needle valve/slide assembly, (easily accessed w/o removing carb), grooved float needle due to prolonged "sitting", the rubber/neoprene gets brittle and old.

Oh, forgot one thing, some "modify" the CV emulsion tube with a 1/8" drill which doesn't work...causing irregular movement of and inconsistant mixture. All you need is to look in the self help section for diagram, tips on getting fueling right, a can of Gumout spray carb cleaner and a bit of careful disassembly and patience. Good luck and don't despair...!

socalrebel · Oct 5th, 2009, 04:04 PM

By shot I mean it will not shut the fuel off at the needle seat. You can not get a kit for this carb as they are no longer manufactured apparently. When you turn the gas on it runs right thru the carb and onto the ground. It has been cleaned and checked, but no kits available.

socalrebel · Oct 5th, 2009, 04:07 PM

Thanks for the tip on mikuni 42 kits, but I need the mikuni 42 carb before I can kit it. I have an old style mikuni...pre 42 series

Hobbit · Oct 5th, 2009, 04:09 PM

Quote:

Originally Posted by socalrebel

By shot I mean it will not shut the fuel off at the needle seat. You can not get a kit for this carb as they are no longer manufactured apparently. When you turn the gas on it runs right thru the carb and onto the ground. It has been cleaned and checked, but no kits available.

i take it you have tried Mikuni directly
Mikuni American Corporation
other than that check on Ebay you can occasionally find second hand carbs from sportsters on there from those who have upgraded to the HSR

socalrebel · Oct 5th, 2009, 04:09 PM

The only trouble with the keihnin is I would have to replace all the intake and the like again. This came to me with the mikuni and I don't have all the original equip.

Oct 4th, 2009, 08:30 PM	#1
socalrebel Start The Engine Ride: 1989 Sportster Join Date: Feb 28th, 2009 Location: Garden Grove, Ca Posts: 23 My Mood:	Sportster Carb I have a '89 sporty 883 with the old style Mikuni carb. It seems that the carb is all but completely shot and I can't get parts for it. I need to upgrade to a Mikuni 42. Is there any where to get a good used one or will I just have to bite the bullet and pay the $360 for a new one?

Oct 4th, 2009, 08:38 PM	#2
chevito Start The Engine Ride: 2009 Sperster Custom Join Date: May 27th, 2009 Location: San Diego Ca. Posts: 40 My Mood:	Re: Sportster Carb criag list just bought one for 100.00

Oct 5th, 2009, 04:18 AM	#4
Hobbit Moderators Ride: 2009 FAST 103 Street Bob Join Date: May 18th, 2007 Location: The Shires UK Posts: 7,625 My Mood:	Re: Sportster Carb as what Smitty says ant carb can be rebuilt whats wrong with it? __________________ Please stop by the "self help section" for maintenance tips, diagnostic codes and much more. >>Self Help Information and Tips<< click me!

Oct 5th, 2009, 11:20 AM	#5
Breeze3at Play The Throttle Ride: 2007 Electra Glide Classic Join Date: Aug 18th, 2009 Location: Warner Robins, GA Posts: 316 My Mood:	Re: Sportster Carb I just did a quick search on e-bay and saw several new 42mm Mikuni kits for $250 buy it now. More looking would probably turn up a better price. __________________ Different rides for different reasons, and knees in the breeze in all four seasons.

Oct 5th, 2009, 11:51 AM	#6
NEWHD74FAN Moderators Ride: 2004 Sportster XL1200RS Join Date: Aug 24th, 2008 Location: Camarillo, CA Posts: 3,716 My Mood:	Re: Sportster Carb Socalrebel, the stock Keihin carb is actually quite a good carb and has been used for what seems like a ton of years so all the kinks were worked out long ago. Brand new rebuild kit is about $40 and really not much to "wear" out. Most common problem is varnish, rust, combustion deposits clogging openings, sticking parts like the CV needle valve/slide assembly, (easily accessed w/o removing carb), grooved float needle due to prolonged "sitting", the rubber/neoprene gets brittle and old. Oh, forgot one thing, some "modify" the CV emulsion tube with a 1/8" drill which doesn't work...causing irregular movement of and inconsistant mixture. All you need is to look in the self help section for diagram, tips on getting fueling right, a can of Gumout spray carb cleaner and a bit of careful disassembly and patience. Good luck and don't despair...! __________________ Please stop by the "Self Help section" for maintenance tips, diagnostic codes and much more. >>Self Help Information and Tips<< Last edited by NEWHD74FAN; Oct 5th, 2009 at 11:53 AM.

Oct 5th, 2009, 04:04 PM	#7
socalrebel Start The Engine Ride: 1989 Sportster Join Date: Feb 28th, 2009 Location: Garden Grove, Ca Posts: 23 My Mood:	Re: Sportster Carb By shot I mean it will not shut the fuel off at the needle seat. You can not get a kit for this carb as they are no longer manufactured apparently. When you turn the gas on it runs right thru the carb and onto the ground. It has been cleaned and checked, but no kits available.

Oct 5th, 2009, 04:07 PM	#8
socalrebel Start The Engine Ride: 1989 Sportster Join Date: Feb 28th, 2009 Location: Garden Grove, Ca Posts: 23 My Mood:	Re: Sportster Carb Thanks for the tip on mikuni 42 kits, but I need the mikuni 42 carb before I can kit it. I have an old style mikuni...pre 42 series

Oct 5th, 2009, 04:09 PM	#10
socalrebel Start The Engine Ride: 1989 Sportster Join Date: Feb 28th, 2009 Location: Garden Grove, Ca Posts: 23 My Mood:	Re: Sportster Carb The only trouble with the keihnin is I would have to replace all the intake and the like again. This came to me with the mikuni and I don't have all the original equip.

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