Won't run under 3000rpm

[storysunfolding]

Question: Is there a good additive you can add to the fuel and run for awhile that will clean the lower speed jets?

Story: I'm guessing I didn't clean the carbs as well as I thought that I did. I can get her started with starter fluid and some throttle. Then she'll run at anything over 4000. Anything between 3-4k will work if you keep goosing the throttle. Anything under and she dies.

I don't think I'm up to taking the carbs off again. I'm probably doing it all wrong and putting it back on took me almost 2 hours of tinkering. That is unless the guy at the shop wants over $100

[storysunfolding]

"fudge" it

I found this website giving a neat idea for getting v-4 carbs back onto a bike http://users.metro2000.net/~cdc/magna/t ... lation.htm

I'm going to test it out and do a review of the process for the forum. I hate it when I "fudge" things up the first time around...

[storysunfolding]

DIdn't work

Definately had clogged pilot jets. A bit of wire through them did the trick. I thought the dip would have taken care of it. I was wrong.

Now to get these damned things back on before the weather hits

[9000white]

that thing you are looking at to use a ratchet strap to install carbs is ridiculous.

[Skier]

DIdn't work

Definately had clogged pilot jets. A bit of wire through them did the trick. I thought the dip would have taken care of it. I was wrong.

Now to get these damned things back on before the weather hits

The same bloody problem stalled progress on my Katana for a good week. I thought squirting a bit of carb cleaner through them and letting it soak for a few hours would be enough. I, too, had to shove a wire through to clean out a lot of nasty gunk.

Good luck on putting those carbs back, the how-to you linked seems a bit excessive for just carbs.

[flynrider]

Once the gunk has clogged the passage, no amount of carb cleaner or fuel additive is going to clear the clog. There's really no substitute for snaking a tiny wire through all of the tiny orifices (orifii?) when cleaning a carb.

[9000white]

sorry no such word as orifii in the english language the plural for orifice is holes.

[storysunfolding]

I decided to rebuild the brakes before giving it a good ride. Now I'm running into another problem that seems like dirty carbs. At midrange hte bike bogs down. Sometimes it doesn't hit until 7k sometimes at 5k nothing happens in 1st and second gear. I can slowly work through it but if I just twist the gas nothing happens and she backfires (Pop... pop... poppity...pop).

This is right where the bike inherently has a flat spot (according to everythign that I've read). I'm sure this is carb related but I them in a dip overnight followed by running wire through everything that I could. They look shiny and brassy and clean but.... I'm sure it's related to dirty carbs.... son of a

Anyway- at this point will something like sea foam do the trick? Could this just be part of thebike sitting for three years and needing to just run for awhile?

Another thing. Starting her for the first time was weird. I had the choke on and at first it sounded like only one or two cylinders were firing, then after a little longer she would idle and die if I gave her gas, then I could slowly rev her up to 3k, then 4k, then 5k then I could go through the entire range. Is this significant of anything? Or was it just taking time for the bowls to fill with fuel?

[storysunfolding]

9000white

Yeah- the tie downs were stupid. Didn't help at all. In the end I went back to what you emailed me before. Perfection... after way too long dicking around with it. V-4 Carbs are just not fun. I can get the ones offmy kz650, Yamaha Vision, and Yamaha xs400 in less than 10 minutes per bike.

The real trick would be getting this thing fuel injected or replacing the bank of four carbs with a pair of two... or one... but I don't even know where I'd get started in working that out.

[9000white]

you aint got no choice but to go with the carbs you have or pay some outrageous price to get them rebuilt.take them back off and e mail me and i will help you fix them.did you check diaphragms with vacuum cleaner??are they VD50A-- or--VD50C--carbs it makes a big difference.