Ngk r6252k-105
I don't think that you need to gap the plug if you get a plug that is specific to your bike. Mine has a NGK R6252K-105 in it. I think that is the same type of plug that they come from the factory with. If you're not getting spark then you probably have a fouled plug or something else wrong.
The best plug to use is NGK BR10EC MIX
When experiencing no spark in a Kawasaki KX 85, first check the spark plug to ensure it's clean and properly gapped; replace it if it's worn or damaged. Next, inspect the ignition coil and wiring for any signs of damage or disconnection. Additionally, verify the kill switch and ensure the bike is in neutral, as these can also prevent spark. Lastly, check the stator and CDI unit for functionality, as failures in these components can lead to a loss of spark.
.045
.035
its gaped at .25
ngr 8
.035 gap
We use the nkg br9eix
0.7 mm
Thre is no gap on the plug as it a surface fire plug.
.028-.032 will work good.