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    Use the 110s first, the carbs are bigger than...

    Use the 110s first, the carbs are bigger than what comes on a 750. Being CVs they will likely only open part way due to the dropoff in flow from the 1000 to the 750 and you may not need secondary...
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    I've found a good number is 75-115 on the 2 jets...

    I've found a good number is 75-115 on the 2 jets BUT the motor MUST be sound and pulling good vacuum at the slides or that will be likely too much jet. You simply cannot overemphasize how much...
  3. Can't say impossible but it would be dependent on...

    Can't say impossible but it would be dependent on the skills of the heliarc guy. Part prepping will come into play too as you may need to grind new trench to support new material laid in, you don't...
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    The lights themselves are the diodes, any extra...

    The lights themselves are the diodes, any extra part there is a current reducing resistor, LEDs function on only about 3 volts of power. If the bulb does not have a resistor installed with it on 12...
  5. You won't see the cracks, even more so looking at...

    You won't see the cracks, even more so looking at cylinder block, they are in the rubber manifolds higher up and do not show but they are there all right. They only show when expanded like putting...
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    That will likely be too much for a fully muffled...

    That will likely be too much for a fully muffled header with OEM airbox, CV carbs LOATHE extra jetting unless it has a definite purpose, they make the most power slightly lean. They greatly self...
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    There is NO brake light on the dash, OEM supplied...

    There is NO brake light on the dash, OEM supplied anyway. The oil light is for that only.
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    An aircut valve leaking on either side of the...

    An aircut valve leaking on either side of the diaphragm or at an o-ring gets leaner rather than richer. Only by activating (compressing the spring) a normal working one does it get richer. That shuts...
  9. Likely an air (vacuum) leak when the carbs were...

    Likely an air (vacuum) leak when the carbs were removed and installed after the ring job. Cracked intake manifolds to the head, they do it all the time. If you have the added vacuum demand valve that...
  10. Thread: Motor sealing

    by amc49
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    I for one think that seal creates a pocket to...

    I for one think that seal creates a pocket to hold more oil for starting after engine has sat for a while, it keeps a small reservoir of oil in place to lube at the hard load starting puts on the...
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    Not wise due to too much metal removal in a 4...

    Not wise due to too much metal removal in a 4 valve chamber. The metal removal will affect the plug heat dissipation too. The seat for plug gasket has to be recut as it is too small for bigger plug....
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    That would likely be a mistake for several...

    That would likely be a mistake for several reasons. And why on earth do you want such a hot plug? A '6' plug is a car plug , most bikes it is way too hot for.
  13. Thread: rubber parts

    by amc49
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    Generally that means you have lost enough VOC and...

    Generally that means you have lost enough VOC and volatile oils out of the rubber to be pretty much bad. Thicker cross-section parts like forward intake manifolds are not the same as the thinwall...
  14. Thread: 2003 Ignition

    by amc49
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    Those impulses are typically very low volt and on...

    Those impulses are typically very low volt and on automotive applications they often use shielded wires there. The pulses can be low enough to be affected by any voltage corona on them like the wires...
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    Dunno what you have there but you cannot have a...

    Dunno what you have there but you cannot have a single filament bulb with 3 wires.

    Gauge lights blinking with turns is gauges not hooked to proper power supply there.

    There are new harnesses...
  16. Thread: 2003 Ignition

    by amc49
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    357

    The airgap may have been too wide, oil should not...

    The airgap may have been too wide, oil should not affect them in the least. Look at the quality of your oil, metal dust in it can do that. Glazing should have zero effect on a mag impulse sensor, the...
  17. Yes, cam caps are not interchangeable unless...

    Yes, cam caps are not interchangeable unless reworked to fit, some few get lucky but simply throw one on there and you can burn the engine up in minutes if unlucky. Plastiguage your old one and match...
  18. Yours and do with it as you will. Depends on how...

    Yours and do with it as you will. Depends on how long that crack is.

    If the boss breaks off and then assembly gets into the cam you will destroy the engine there. Need a new casting BUT they are...
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    Not a 400............ ...

    Not a 400............

    https://honda400four.wordpress.com/2013/08/25/yoshimura-honda-cb400f-racing-straight-cyclone-4-into-1-exhaust/

    Take note of the two bolts at the end of top cam cover and...
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    You need to absolutely make sure the pilot is...

    You need to absolutely make sure the pilot is open using like a .013" wire size to check the opening, the easiest source of that is 'E' string off a guitar. Thinking the thinnest one.

    You pretty...
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    The brown wire does not go to black connector,...

    The brown wire does not go to black connector, brown is only for use at night, the buzzer is on all day long. Brown runs from ignition switch to fuse for taillight and then to the brown connection on...
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    If the compression is that amount on #4 then not...

    If the compression is that amount on #4 then not that but at some time it needs to be done.

    The pilot jets clog to the nth degree and that done makes the carb go rich just off idle and it can...
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    CB550 by the clutch cover and other details. The...

    CB550 by the clutch cover and other details. The cylinder block will have it marked on it somewhere.
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    I note the use of the words 'spark unit', is that...

    I note the use of the words 'spark unit', is that bike a DOHC? If so the carbs can be 'clean' and present several problems anyway. For most people a single carb clean job is nowhere near enough.
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    http://manuals.sohc4.net/cb750k/ You want the...

    http://manuals.sohc4.net/cb750k/

    You want the K1-K8 supplement, K8 is a '78 model. Go to the page between page 264 and 276, the manual is somewhat messed up as far as the pagination goes.
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