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Honda MX & Off-Road Dirt Bikes
Coolant leak on CR80 - Losing my mind!!!
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[QUOTE="SHSPVR, post: 1419592, member: 73255"] I take it that your losseing coolant?, there is one other possable that most mechanics forget about checking the transmissions oil fluid so if you have not done that do check it, dose oil color look wrong? well if it dose read on. If the weep hole drian for water pump is plug up it will push coolant in to transmissions side which in turn get pass your crankcase seal becuases it build just a enough psi for that to happing boom you have in water in crankcase. If that is the case replace the water pump shalf with new one and new water pump seals and clean out the weep hole on clutch cover with really small drill bit do it by hand not with a power drill. If do have a hairline crack in the cylinder the best thing to do is have a Steel Slevee install. But if you do go with a diff jug just so you know you can used 1986 up to 2002 jug that was last year of CR80 then the jug change to 85cc bore which by the way you can also use so long as it 2003/4 jug so long you get that 85cc piston for it, now the cylinder head you do have to watch for the years if bike was made in 1996/2007 you want it get with in thoses years it just that the 1986/1995 are tab diff and you can use any year head from 1986 to 2007 only the radiator hose is diff. As for the cylinder from 2005/07 CR85 they to can be use but Exhaust Pipe have to be change to that 2005/07 year My old 1987 CR80 had all kinds years parts in fact the last part I got it was cylinder head from a 2005. [/QUOTE]
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Honda MX & Off-Road Dirt Bikes
Coolant leak on CR80 - Losing my mind!!!
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