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  1. Davidson750

    Tank liner removal ?

    Yep you got a be careful, and on those older tanks they're pot metal..you pull that cruddy liner out just to find out it was the only thing holding the tank together(sarcasm)
  2. Davidson750

    Tank liner removal ?

    That can be a chore..the last one I did they poured the sealer in a tank that hadn't been properly prepared..it actually came out(in pieces).. I think we ended up modifying a very long set of offset needle nose pliers.. after numerous coat hangers..just need to watch out that you don't bugger up...
  3. Davidson750

    Airbox-Carb Boot Installation

    Awesome, good luck.
  4. Davidson750

    Airbox-Carb Boot Installation

    If you have the carbs off and the air box off line them up for the best install.. Mark the boots with a white sharpie.. the biggest thing is is the warm bootson airbox and on your intake also if you're doing carb just take your time you'll get it..one might get hung up but a hook of some...
  5. Davidson750

    Help!! I screwed up

    You base what I say off of one misspelled word.. but doesn't know how to spell doesn't.. you sure it's not someone other than some.. you might want to proofread your own comments before you try to correct my grammar... You can post all the pictures of your bikes you want... Just don't post other...
  6. Davidson750

    '82 CB750K cylinder #1 plug sooting

    The kehein 43's and 42's (750/900)all have accelerator pumps. I live in Dallas Texas very hot very dry I have to fatten up everything on the carbs... The weather is getting nicer you might have to just start digging into it and see what you get but I would start at those valves easy to do don't...
  7. Davidson750

    '82 CB750K cylinder #1 plug sooting

    We've been doing .005 intake and exhaust... factory specs are a little tight as I mentioned earlier...750s are known for running lean..it's the exhaust valve on that cylinder..... We are dealing with thousands of an inch so yes it can make a difference.and of course proper ignition timing.. if...
  8. Davidson750

    '82 CB750K cylinder #1 plug sooting

    If not carbs,rings..were the gapped?.. installation went smoothly?... I use a second pair of hands if available ,and I made blocks to keep the Pistons from going down looks like tuning forks..good luck
  9. Davidson750

    '82 CB750K cylinder #1 plug sooting

    I completely understand... I'm thinking more carburetor.. when you did Jets and the rebuild,.. did you use genuine kehein(jets,etc) parts.. aftermarket rebuild kits I've found have been pretty unreliable.
  10. Davidson750

    '82 CB750K cylinder #1 plug sooting

    Seems like you got it covered.. you could check valve clearances.. go through and look for any big discrepancies... .005 intake/exhaust
  11. Davidson750

    1981 CB750K Gas Tank Swap.

    Yes most of those tanks for those years are interchangeable.. my cb750f tank holds a little over 5 gallons... That's a lot of riding,.. there's not really a gas tank dent repair service.. if it's not too mangled the reputable body shop could take care of it, I got my used for a reasonable price...
  12. Davidson750

    '82 CB750K cylinder #1 plug sooting

    Swap your plugs around or try a new plug and see if it still happens I've had bad plugs out of the box before sometimes we overthink things.
  13. Davidson750

    All 4 carbs overflowing

    Are you using aftermarket bowl gaskets?..where is the fuel coming from?. unfortunately some aftermarket rebuild kits are not that good,... Is it coming from the overflow, or is it coming from the float bowls themselves?
  14. Davidson750

    Is my bike suddenly cooked??

    Check spark,carbs,and compression.
  15. Davidson750

    1980 Honda CB750F Runs with choke then dies with choke off.

    Great ....1-1/2 turns out from gently seated
  16. Davidson750

    1980 Honda CB750F Runs with choke then dies with choke off.

    Stay away from aftermarket rebuild kits(junk)..and protect all gaskets from over spray from Gumout(carb cleaner)...older gaskets will deform...use a hair dryer or a heat gun on low on your rubber boots(airbox,intake)..it will make things a lot easier..and put all your linkages on..move airbox...
  17. Davidson750

    Balancing carbs - just a quick question

    Well yes all opening at the same time from the same starting point I pretty much thought that was understood, and you surely wouldn't need gauges to find that out you can do that visually
  18. Davidson750

    All 4 carbs overflowing

    I always give them a slight little tap when I first put fuel to them.. it can help seat but if you have all four overflowing that's a bit of a problem
  19. Davidson750

    All 4 carbs overflowing

    Floats or needles.
  20. Davidson750

    Balancing carbs - just a quick question

    I misunderstood you...synchronized carbs means they all open at the same time,..we still use mercury gauges... we start with air idle if there's any question not synchronize which I can get closer on the bench than most people with gauges,...air idle mixture is how you smooth it out, if that is...
  21. Davidson750

    Let's see your CB750

    1980 HONDA CB750F
  22. Davidson750

    Balancing carbs - just a quick question

    Jet,then check your plugs,start screws approx 1-1/2 out from seated all air..if bike runs good leave alone.
  23. Davidson750

    1980 CB750F RESORATION.

    I put 3 coats of Duplicolor- universal silver metallic.. Then two coats of clear,then decals after 48hrs of cure.then one final coat of clear(whole tank) to soften the edges of the decals,..which i might say was a bit tedious...it would be a understatement to say.."once you start there's no...
  24. Davidson750

    1980 CB750F RESORATION.

    https://www.honda-decals.com/default.tpl?cart=lmfmdmli&id1=170&id2=189&startat=1&--woSECTIONSdatarq=189&--SECTIONSword=ww1
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