2002 Honda CRF 450 R blowing white smoke at startup

SOURCE: SMELL ANTIFREEZE BUT CANT FIND A LEAK

Yes it has a water pump and it is inside the right crankcase cover. It is probably just fine. There is a thermostat that is probably stuck closed. The water can't circulate to cool the engine. Don't mess with the bike without a service manual. Google " motorcycle repair manuals honda ". Also the site below.

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http://www.amazon.com/exec/obidos/ASIN/0892872381/vintageandcla-20

SOURCE: 04 crf450r hard starting

May be a decompression problem. What gear do you use when you pull it?

SOURCE: water coming from exhaust smoke coming out of radiator cap

Water coming from your exhaust is very bad. Best case scenario is a blown headgasket that can be replaced and then go on. Other possibilities are cracked or warped head or cracked block. All will require at least removal of the head to repair.

Did you really mean exhaust smoke, or simply bike is overheating and blowing steam out the radiator cap? If simply overheating the first thing to check is your thermostat. Remove it and test in a pan of boiling water. Does it open? If not, replace it.

SOURCE: 2002 honda crf450r starting problem

Hi Smit,

here are some thread that will really be helpful for you and your bike.

http://www.thumpertalk.com/forum/archive/index.php/t-589583.html

http://www.supermotojunkie.com/showthread.php?p=862289

http://www.mototips.com/general-bike-repair/21014-crf450-04-hard-start-cuts-out.html

happy trails,

regards,

voodoo

SOURCE: i have a 1997 kawasaki classic 1500 having pressure problems

the seal in your water pump but doubt it sounds like head gasket was it installed correctly? the head gasket is a crush gasket and can only be tightened one time after that it is junk and will not seal again there made from copper and crush really easy hope this helps good luck