Posts: 197
Joined: 2/24/2017
Location: Venado Tuerto, ARG
Hi guys, I have recently rebuilt the engine on my Kawi and it barely has an hour. I am breaking it in the old way, by using it half throttle. However, oil is leaking from what I believe is an overflow hole, is it normal? If not, what should I do? Thanks in advance!
Heavy Hitter
Posts: 593
Joined: 12/24/2011
Location: Benton, LA USA
That looks to be from the spark plug cavity. It is there to let water evacuate from around the spark plug.
Are you sure your spark plug is tight?
Paw Paw
Posts: 197
Joined: 2/24/2017
Location: Venado Tuerto, ARG
Thank you bud! I didn't know it was the spark plug evacuation hole, now I know what to look for!
Heavy Hitter
Posts: 129
Joined: 1/6/2012
Location: AUS
Posts: 197
Joined: 2/24/2017
Location: Venado Tuerto, ARG
Posts: 1357
Joined: 7/27/2016
Location: Snohomish, WA USA
Posts: 738
Joined: 7/30/2013
Location: Louisburg, KS USA
Edited Date/Time:
There is actually two one under the cam caps and one under the valve cover. They require a little grease on them when being installed. Those are "supposed" to be replaced at rebuild according to the manual
Posts: 197
Joined: 2/24/2017
Location: Venado Tuerto, ARG
Thank all of you guys! Yeah first I will try to replace the one which goes under the valve cover, as I don't want to take the cams cap apart.
Heavy Hitter
Posts: 197
Joined: 2/24/2017
Location: Venado Tuerto, ARG
Wells as you can see the seal was pretty shot. Do you think I should also check the one under the caps or is this the only culprit of the oil leak?
Heavy Hitter
Posts: 1
Joined: 11/11/2019
Location: Fresno, CA USA
Posts: 5307
Joined: 1/31/2018
Location: Mansfield, OH USA
Replacing that seal and the oring fixes the leak. When they fail, oil leaks into the spark plug hole and flows out of the weep hole on the side.
