Motorcycle Repair: water leak, head gasket failure, motorcycle engines

Question
HI.. THERE IS A WATER LEAK FROM THE PIPES.. ITS NOT MUCH.. BUT ITS BAD TO SEE.. PLEASE TELL ME WHAT SHALL I DO TO FIX IT BY MYSELF.. DO U THINK THE TOOLS CAME WITH THE BIKE WILL BE ENOUGH TO FIX OR I NEED MORE TOOLS?? I WOULD LIKE TO KNOW ALSO HOW TO DISTINGUISH BETWEEN 400 & 6OO CC?? THANX IN ADVANCE!!

Answer
Sultan, you haven't given me sufficient information about this bike to be able to tell you if this is something that you can fix yourself or not. From your description, it sounds like the engine has suffered a head gasket failure, allowing coolant to be mixed with the fuel/air during the intake stroke.

Based on your location, in the UAE, the cooling system of any water-cooled vehicle needs to be maintained carefully than in many other locations. A failure of the thermostat, water pump, cooling fan, hoses or radiator will cause the engine to overheat and blow the head gasket. When this happens, often the cylinder head is warped from the overheating episode, so needs to be carefully inspected and machined or replaced to ensure that this doesn't happen again. Plus, you must determine the original cause of the overheating issue and repair that, as well.

Most motorcycle engines have the displacement marked on the bottom forward edge of the cylinder block assembly.

Bill Silver