I spent some time on the dyno yesterday with the RS34's. In short, there's a lot of development needed to get these running right.
First run it made 56hp, down 30hp from my last CR31 run. No wonder it felt more docile and streetable that it did on the 31's. (headslap)
125 mains were off-the-charts lean (17:1). Needle was lean as well (was one-clip rich). Accelerator pump limit-screw (long allen in the carb body) backs itself out with the carb top off AND the pump plunger doesn't want to come all the way up after use. (The latter is a common complaint I've seen on the web and it requires a little heavier spring under the plunger.)
Still having issues with cylinder 3 not reading on the sniffer, but the exhaust pipe was a similar temp as all of the others and the plug looks good. Very much a head scratcher. The sniffer does read the accelerator pump spray, which worries me that I'm starving that cylinder of fuel at other times. I've been completely through each carb, but will go through them all again this week.
I raised the needles to the richest position and grabbed a set of 127.5 mains, which was worth 20hp, but I'm still down 10hp and the A/F is all over the map. One step on the main got me to 15:1 at redline, so we're closing in on a main jet size. If I had to guess, I'd say 132.5 should be on the money. For goofs, I drilled out a 110 main to .155 with predictable results, 10:1 A/F and 64 hp.
The jet needles the carbs came with, 9DZH5-50's, aren't what's spec'd (9DZH01) but are listed as alternates for the carbs. I can't find much information on the 5-50's and am not sure how they compare to the 01's overall. However, with the 5-50's that came on the bike being too lean, and the 01's having a similar starting diameter, I've ordered a set of 9DZH03's to see how that works out. I've also got 10mm and 30mm velocity stacks coming to add to my 50mm's. Finally, I have 130, 132.5 and 135 mains coming.
Might get a dyno sheet up this afternoon.
