vm33

jonarmstrong wrote: Hello all. I havnt been on the forum for a while, work has kept me busy. I bought a set of vm33s off eBay about 3 months ago and can't seem to figure them out. They were ultrasonically cleaned and reassembled by the seller. I put them on and they were real lean. 17.5 pilot and 122.5 main. 3rd clip on needles. I tried upping the main a touch and they were real rich all of the sudden. I kept messing with them and found they were leaking out of the bore. So much so I could smell gas in my oil. I pulled them and checked float height they were set at 23mm. I put gas to them and they leaked out bore again. I set the floats to 25mm. Seemed to help. Needles and seats are sealing when I turn carbs upside down and blow in fuel line. Floats have no fluid in them. I have them set at 20 pilots and 127.5 mains. Haven't touched clips. Bike is way rich. Black smoke and plugs fouling but when I rev it flames come out pipe. That would be lean, right? What's going on? I can put bs34s back on and it runs like a top. They are set at 40 pilots and 130 mains. I'm confused and can't get back in touch w seller

DFIGPZ wrote: scroll down to mikuni 33 smoothbores www.aperaceparts.com/cope.html