HELP..oiled spark plug

Hi,everyone.my KZ1000J has a problem.it had oiled 2. spark plug generally.And ı rebuilt all the engine but my same problem goes on... it starts good then warm the engine smokes and second spark plug oils,and second exhaust pipe cold.ı looked the cylinder head,valve rubbers.all okey.the ring sets in cylinder 0.45mm gap.i couldn't find this problem.does any one knows this problem.HELP.

Few reasons plug Fouls or not Dry, How were the valve guides,Did you replace seals, Maybe not getting spark on #2 as it warms up could be plug shorting out not burning fuel and running cold. If is oil then rings? did you replace the rings even though they had proper clearance? Old rings loose there spring action ,and as they warm up collapse under pressure causing oil to leak by. Many things to think about, Hope someone can help asap so Zridings are fun.

Do a leakdown test on all four cylinders and let us know the results.

kawastrtfgtr wrote:

Hi,everyone.my KZ1000J has a problem.it had oiled 2. spark plug generally.And ı rebuilt all the engine but my same problem goes on... it starts good then warm the engine smokes and second spark plug oils,and second exhaust pipe cold.ı looked the cylinder head,valve rubbers.all okey.the ring sets in cylinder 0.45mm gap.i couldn't find this problem.does any one knows this problem.HELP.

Maybe #2 oil ring is damaged. :pinch:

Good Luck!

ı tested all clinder leak down,no leak to down

how was the engine rebuilt?
did you use oversized pistons or just ball hone the cylinders and install new rings?
you did use new rings right?

i would do a leakdown test @ tdc then @ bdc.
i'm suspecting cylinder wall taper here.

ı use new ring set, and oversize the cyliner and pistons. ı take off the cylinder and ı see the 4 rings set looks different angels.is it posible? ı installed them as clymer book for kawasaki kz1000.

hi, i had the same problem with no 2 spark oiling, even when i had put in new rings valve stems seals etc.
When my mechanic had put in the new rings (so called Mechanic will never use again) the expander ring was broken by the clip where the the two ends meet.so the ring was sliding by each other instead of closing together. The only reason I had found this out because of the oil and smoke. I then myself refitted new rings on 2 piston and working perfectly.The only way to check is redo i am afraid.

Good luck

what is redo?

hi, ı rebuilt the engine you know. but ı did not change valve guides. new valve seals,oversize pistons and rings but first and second spark plugs are always oils. engine smokes. valve guides are realy important?because ı ınstall new valve seals. thanks