i just bought a 1998 f3 2 months ago but the problem is my number 3 spark plug is always dead this is for the 3rd time and its color black..pls help me!!!am from the Philippines.

 

please help needed badly i have a long ride this coming sunday

 

It's either not sparking, or that carb is not working/adjusted correctly. That is assuming that that cylinder has good compression.

 

ok il try to sync it tomorrow tnx for the reply

 

ya you could have blown a cylinder ring which is causing oil to foul the plug.

 

i had a nice ride i was able to go to 240kph..i just found out 2 small hose inside 3 and 4 carbs are not working then a little bit of cleaning..on the way home i stop 4 times coz of overheating my last stop my radiator hose expoload then a thick white smoke came and my bike was cover by oil i thought i blew my engine after checking i found out all of the oil came in the radiator maybe the old owner pour an oil in the radiator thinking thats the engine...the problem now its so hard to remove all the oil in the water system ive been flushing it for 2 days still the oil is coming out in my water pump i already use some flushing chemicals yet its still their

 

yesterday am checking my oil i was surprise my oil was gone all went to the radiator when i drain the oil i saw water was mix to the oil.what could be the damage i put the engine down already

 

Oil cooler seals... They are leaking, allowing the high pressure oil into the lower pressure cooling system.

 

You need to do a compression test, especially if there is oil in radiator, I hope the previous owner was not so neglectful to let that happen. If all the cylinders fail the pressure test, you more that likely have blown gaskets, if only one of them is out of spec, then as demon says could be the seals.

 

the oil cooler seal is ok..when i pull the engine down i saw the blown gasket i just order for the new one.what is right compression for each cylinder?