Hi Everyone,
last evening I attempted to sync the carbs on my KZ1000 CSR using the guage set I recently bought at Z1 Enterprises. The process generally went well but cylinder #1 was slow to equalize... It will catch up to the vacuum reading of the other three, but when changing throttle position it lags by several seconds (2-3) before reading roughly the same reading. At idle all 4 carbs read within 1-2 Hg of each other. Revving the bike, 3 carbs change readings almost the same, but #1 does so slower, eventually getting to almost the same reading.
I checked the valve clearances a month or two ago, and all seemed to be in the normal range, but I haven't checked compression, thats my next task.
I think I might have a small vacuum diaphragm leak on carb #1 but will have to check further to confirm or eliminate.
For what its worth, the carbs were significantly out of sync before I started. 3 to 4 were only 2 Hg different from each other. #1 and #2 were ~5 Hg to each other but ~5 Hg different to #1 and #2.
Once put back together, the performance difference is very noticeable. The bike seems to rev freer and accelerates smoother, I just wonder whether getting the one slow carb fixed it will improve performance yet again.Does anyone else have a similar experience?
Grant.
1981 KZ1000 CSR
1983 KZ750 Project Bike
1990 550 Zephyr
1994 KZ1000 P
