I have an '88, and I have two Webers for it. The original was swapped for another 44 w/ completely different jets. I bought #2 off ebay, rebuilt & rejetted it in an attempt to work out the 4500rpm flat spot. The jet numbers came from a mechanic; he kept calling it the "canadian spec" numbers
and they ironed out the flat spot, but it runs rich as hell. I don't notice when I'm abusing the speed limit, but in town - it stinks.
Another mechanic - also a previous Paso owner & racer - highly recommended the Mikuni option to fix the Weber problem. But that's all the info I got: "get a pair of Mikunis". So my question: which Mikunis should I be looking for, and how invasive is the surgery going to be?
Keep in mind, nothing is out of the ordinary on this bike; and while I don't mind making mods in the interest of improving performance, if we're talking about cutting up the airbox I'm of a better mind to either find another one, or build one from scratch (there's a great CF fab shop in the area) before I wreck mine. I like keeping my 'stock parts' option open.
So what am I looking for? 38mm? 40mm? Will a pair of m750 carbs work? I'm not against hanging my 'Silentium' pipes on the wall for something free-breathing, and/or converting to an open airbox (if possible?). My Monster has an open airbox, stage II jet kit & high exit Termis & I love that combination; if I could find something to make the Paso equally ... anxious, I'd be thrilled.
TIA
Jake