a couple carb questions

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  • motoman
    replied
    Originally posted by BA80
    Are we at the Salon?
    Hmmmm.......that went from carb R/R to hands-on cosmotology fairly quick.

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  • MaximPhil
    replied
    Originally posted by DeanR
    It's gonna be nice and warm on Christmas Eve. Good time to do it. Actually I have removed XS carbs once, when I stripped everything off the SF.
    I'll get the kitchen table ready for some work to be done.
    Hi Dean,
    SO No Turkey being cooked at your house
    Phil

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  • BA80
    replied
    Are we at the Salon?

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  • Bonz
    replied
    Yes, +1 on what CZ said, get the boots good and warm. I find a quick shot of hairspray on the outside of the carb outlets provides some add'l lube while it's wet, then some stick after the carbs are slid in and dries. Or some rubbing alcohol slathered on the carb outlets for a bit of add'l slick factor that dries without a trace.

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  • BA80
    replied
    Originally posted by CaptonZap
    One other tip, since you say you are working in the cold.
    When it comes time to reinstall, borrow your wife or girlfriend's hair dryer. Set it on high heat, and blow it on the rubber manifold tubes. Smear a little vasaline on the insides. When they are good and warm, slip the carbs in.
    Do not use an industrial heat gun without constant monitoring, as they can melt the rubber.
    CZ
    +1 on that. Even if you just set a little electric space heater so it blows on the boots it makes a HUGE difference when it's cold.

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  • CaptonZap
    replied
    One other tip, since you say you are working in the cold.
    When it comes time to reinstall, borrow your wife or girlfriend's hair dryer. Set it on high heat, and blow it on the rubber manifold tubes. Smear a little vasaline on the insides. When they are good and warm, slip the carbs in.
    Do not use an industrial heat gun without constant monitoring, as they can melt the rubber.
    CZ

    Leave a comment:


  • motoman
    replied
    Originally posted by DeanR
    Yea, I know I should take em off. But it's cold out and a scary job! Quite sure they've never been removed. Cylinder 2 has taken a long time to get going for quite a while now, but once that #2 header finally gets hot, it runs great.
    Had the carbs off the ST recently, to replace all hoses while I was doing the timing belt.
    So,
    It's gonna be nice and warm on Christmas Eve. Good time to do it. Actually I have removed XS carbs once, when I stripped everything off the SF.
    I'll get the kitchen table ready for some work to be done.
    Dean, having the STeed carbs off(BTDT), you should have the XS carbs off in 10min........while blind-folded.

    I'll add remove lower portion of air-box and filter first........gives the extra room to drop box DOWN, leaving carb intakes tottally clear of any air-box interference. As you go back in from left side with carb bank, hook up throttle cable.....easier than after carb bank is mounted.
    Last edited by motoman; 12-22-2014, 05:28 PM.

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  • DeanR
    replied
    Yea, I know I should take em off. But it's cold out and a scary job! Quite sure they've never been removed. Cylinder 2 has taken a long time to get going for quite a while now, but once that #2 header finally gets hot, it runs great.
    Had the carbs off the ST recently, to replace all hoses while I was doing the timing belt.
    So,
    It's gonna be nice and warm on Christmas Eve. Good time to do it. Actually I have removed XS carbs once, when I stripped everything off the SF.
    I'll get the kitchen table ready for some work to be done.

    Leave a comment:


  • mack
    replied
    Bowls

    The pick up tube for the enrichement cct is offset slightly from the 81's so the bowls aren't interchangeable. I agree with pulling the carbs and cleaning them properly. From a 90 degree screwdriver you won't get that pilot out w/o stipping it, then you have issues.
    While it seems like a daunting task, you can have the carbs out in 8 minutes provided you don't have an octy.(Thats another minute)
    Remove seat and tank
    Loosen intake and airbox clamps
    Slip air box clamps off all the way to the rear until they are against air box
    Remove three bolts holding air box in place and pull air box to the rear
    Remove crankcase breather tube upper clamp and pull the tube out, bend it down and to the rear and tuck under the air box
    Pull the carbs straight back, wiggle them up and down a few times and they will pop out of the intakes.
    Tip them up slightly forward and remove to the left side paying attension to the head oil feed tube and throttle linkage.
    Remove throttle cable as soon as you have enough play
    Remove vacum advance hose, Note the it attaches to the #2 carb
    Slide the carbs out the rest of the way.

    Reverse to install.

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  • motoman
    replied
    Originally posted by DeanR
    Possible to pull a pilot jet for checking/cleaning (#2) without pulling the carbs? (I suppose one would need just the right 90 degree bent screwdriver)

    New float bowl gaskets required whenever the bowls come off?

    Can 81 bowls go on an 80, to gain the drain feature?
    Yes, but wouldn't risk as it only takes 10min. to pull carb bank.
    No, they're fairly thick and robust.
    No, IIRC pic-up tube doesn't clear correctly.

    Dean, overall if you suspect contamination/blockage that's carb related, even if just one carb is suspect, others may soon follow. IMO, worth the extra 10-15min. to remove carbs and ALL bowls and do a close inspection of internal pieces.

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  • DiverRay
    replied
    Yes
    Yes
    Yes
    The only thing to watch for is trying to get the pilot out without stripping the top of the jet. IF it's been in for a while, I would pull the carbs! I don't replace carb gaskets unless they rip badly as I pull the bowl. I believe you can put the '82 bowl on the '78 carb, so they will all interchange. BUT I'm going from memory, and most of my work has been on '78 to '80 machines..

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  • DeanR
    started a topic a couple carb questions

    a couple carb questions

    Possible to pull a pilot jet for checking/cleaning (#2) without pulling the carbs? (I suppose one would need just the right 90 degree bent screwdriver)

    New float bowl gaskets required whenever the bowls come off?

    Can 81 bowls go on an 80, to gain the drain feature?
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