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    81 400xs turbo build

    If it dries up a little around here I will take some video..... no hwy close to home
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    81 400xs turbo build

    I just may have to check these out...thanks
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    81 400xs turbo build

    So I rode with an oversized fuel line and never had it run out once..... So thinking another petcock and fuel line will be plenty.... I was having so much fun grabbing gears that I noticed the clutch slips a little between gears.... Anyone know of an aftermarket clutch or a way to stiffen the...
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    Supercharging

    whilst changing over the oil fill casting, I noticed a nut missing off one of the gears Yes you will need both nuts to ride this......
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    Supercharging

    I can't wait to see this thing all done......we should have a race when we are finished!!
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    81 400xs turbo build

    Ya that's why the fuel regulator should be in place.....just wanting to find the most simple and budget friendly way to do it. Will post some go pro video soon, if I can figure out how to anyway.
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    81 400xs turbo build

    So I tried a couple different inline fuel pumps. A 5-9 psi pump will push through the carb. A 2.5-4 psi does not pressure through, however it starves even quicker than with no pump at all. I wouldn't mind tapping another line to double the fuel volume....I think it would be enough because I ran...
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    Problems with my 81 xs400

    Sounds like a blown motor.....remove spart plugs and place your thumb over the hole on one side.....crank it over while holding you thumb.....it should have enough compression that it is somewhat difficult to hold your thumb tight over the hole.......check both sides.....one will probably have...
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    Its Done....My 400 Scrambler

    Now it just needs a turbo .....
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    81 400xs turbo build

    I discussed doing that with a neighbor this morning actually, but figured an inline pump would be easier than tapping holes and adding a petcock. Although we didn't even think about a petcock with more flow....probably try this if inline pump pushes fuel through carb.
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    81 400xs turbo build

    So I finally took it for a real drive today.....the beast is totally alive and well in this bike!!! Makes nice boost but to scared to look at gauge to see actual psi (gravel road lol). But ultimately it will begin to sputter and slowly run out of fuel....which is crazy because the stock gravity...
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    Carb Tuning question

    Ok fair enough just thought you guys would know off the top of your head......just need a starting point cause I'm pretty sure the last guy that was in my carbs did not know what he was doing. Would be nice to have it close before I hit the road for tuning. Thanks
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    Carb Tuning question

    Is there anything more specific? Like 2 and a quarter turns for example? 2-3 turns sounds really forgiving.....
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    Carb Tuning question

    Does anyone know how many turns the fuel mixture screws are suppose to be turned out? I'm refering to the two screws on the front of the carb not the idle adj. screw. Thanks
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    With them being lace backs you can also have them

    Go home Rose Lee......your drunk!
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    81 400xs turbo build

    No I have lots of wiring and wire repairing to do.....
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    81 400xs turbo build

    I really do not plan on throwing it on a dyno but not knowing the hp gains might get to me some day lol
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    81 400xs turbo build

    Down pipe done..... I'm sure the cops are looking forward to meeting me in my small town. Something tells me those meetings will be less enjoyed by me though. Here are a couple pics to wet your whistle....
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    81 400xs turbo build

    So swapped out the 1/4" brake line for 3/8" fuel line and installed larger fittings and Presto!......no oil leaking through turbo! Another surprise is that the fuel system seemed to be keeping up to the boost in neutral however this will probably change under load when on an actual road...
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