用手掌大的平木头包起320号沙纸，从左到右，从上到下，来回磨，最后用上1000号沙纸细磨

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• this is why it stil overheating, the head is wraped, sand it thi -yyang3- ♂ (0 bytes) () 01/12/2019 postreply 12:59:35

• need cylinder head resurfacing -yyang3- ♂ (0 bytes) () 01/12/2019 postreply 13:00:24

• But it dose not have any check engine on . No misfire . And ru -motorcycle- ♂ (0 bytes) () 01/12/2019 postreply 14:37:12