Before reassembling with this new gasket, you must check that the fixing threads on the cylinder head are not damaged. To do this, check that the entry of the thread makes a 45° angle.
If in doubt, do not hesitate to install a helicoil-type thread insert
Can replace Honda gasket reference 12391-KCY-671
Fit also TRX400
Before reassembling with this new gasket, you must check that the fixing threads on the cylinder head are not damaged. To do this, check that the entry of the thread makes a 45° angle.
If in doubt, do not hesitate to install a helicoil-type thread insert