• Spots and locates combustion leaks quickly in cracked or warped heads,
   leaky gaskets or cracked block. Use Leak-Check in the radiator opening
   with engine idling. The blue test liquid will turn into yellow in 60 seconds
    if there is a combustion leak, no matter how small. Get exact location of
    leak by disconnecting one spark plug at a time and retest.
• Completely accurate proof of leak.
• Perfect combination with JTC-1005.
• 250cc fluid container.