Won't run under 3000rpm

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9000-

I'll email you when I pull them again. Since it's bogging down over the midrange, does that mean that the main jet is clogged up?

[9000white]

no it means that the slow jets are clogged or the jet needles need cleaning or the emulsion tubes or the diaphragms aint working right--you need to slow down and do thus job right or you will be pulling them carbs from now on---if you dont tell me what series carbs you have--VD58A--or--VD58C-- i cant help you.

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Decided to do the job right. The carbs are 58 c. I have them pulled and I'm not putting them back on until I do everything I need to do. I have the boots on the engine sealed with plastic bags and rubber bands to keep anything from falling in there for the duration.

[9000white]

VD58C are the better carbs.keep the parts separate on the carbs--take floats out of carbs--remove slow jets --main jets and emulsion tubes that main jets screw into--do not try to remove idle jets the ones with the tiny hole in them--they wont come out--take diaphragm covers off -pull diaphragm and jet needle out--on the side of jet needles toward top is a number stamped in them---if the carbs have ever been apart some of the parts will be out place--#on needles for #1 and 4 carbs is 2VF--#2 and 3 carbs is 2VE--emulsion tubes are different on front and rear--check and clean out all tiny holes in emulsion tubes--go to radio shack and get-1 package of 64-3022 washers --this will get rid of the flat spot in carbs--are the main jets #105 or 108??? slow jets #38??

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I'm about to take them off to clean them again. Where do I do with the washers from radio shack?

[9000white]

you put one of the #4 washers under each of the jet needles if it has #105 main jets.
the whole pack of washers cost $1.99.

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9000

When I take the carbs off to clean them again this weekend. How should I go about it. Should I take them off the plate holding them together and dip it. Or should I use spray carb cleaner and just run something like heavy fishing line in every opening I can find.

[9000white]

the choice to separate the carbs from the plenum or not is yours. if you do you can do a better job of cleaning them plus you can replace the 20 year old fuel pipe o rings before they start leaking.all the throttle linkage and choke linkage is a complicated puzzle.if you are going to separate the carbs from plenum take a bunch of pictures before you start.there is no info on this in the manuals i have seen.place the whole rack on a towel before you start as when you separate the carbs from each other there are 5 springs that will fall out.dont lose them.have the plugs been removed from the pilot screws yet??? p.s.getting the phillips head screws out that hold the carbs to plenum will require a impact driver with a good bit in it.you need to clean the jet needles with 0000 steel wool.the idle jets can be cleaned with a wire pulled from a handheld wire brush.