Hi All,
I've written a few times before about my attempt to resurrect my 'old' 1979 Kz1300 A-1.. I recently got it running after working on an ignition problem (pick coil for 3 & 4 was bad). It seemed to be running ok, so I've spent the last couple of weeks working on the brakes.
Anyway I just recently started to run it around the block and down the road a little and it appears that the engine is missing at low RPM but seems to get better from around 3000 up to around 5000 RPM. I haven't run it much past 5500 RPM's since getting it to run.
Further tests show that cylinders 1 & 2 appear 'wet' when I pull the plugs
. In the picture you can see that from left to right plugs 1 & 2 are black and wet looking where 3 & 4 look fine. 5 & 6 (not pictured) look the same as 3 & 4. The spark looks the same on all 6.. Compression seems good at around 150-155 for each cylinder. The carburetors were recently rebuild professionally by Jack at oldschoolcarbs.com and appear ok.
So I'm at a loss as to what could be going wrong. Any ideas would be greatly appreciated.