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JJBKTM300

Ktm 300 crank seals

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Easy as to change was having trouble with spooge and jetting and overall fowling plugs like never before and weird smell burning oil in gearbox

 

Took about 2 hours

Removed clutch plates main gear then took seals out with a screw and replaced them including the metal collar and oring. Metal collar was worn and oring really worn.

 

Testing my work out this weekend.

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Great when you don't have to split the cases like on the post mid 1980's Jap bikes.

If you hear a ticking sound from the bottom end you may have worn crank bearings which leads to leaking / worn seals. On Jap bikes, good bearings / seals will last tens of thousands of kilometres, with a couple of simple precautions - make sure there's oil and don't let them sit in water / moisture (don't start and garage a 2 stroke after a wash unless your absolutely sure the filter is totally dry).

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