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JD 265, Warning to Kawasaki Single Engine owners!

1577 Views 12 Replies 8 Participants Last post by  northbama
I thought this was only a Kohler engine problem, but to my surprise!
My JD 265 with FC540V Kawasaki engine wouldn't start today. Didn't fire at all. Ran flawlessly yesterday. The first thing I checked was the choke, Bingo! The choke plate was out of place and one of the brass screws was missing, the second screw is 3/4 out but still holding. I can see that the missing screw is not in the intake, so it has gone into the engine.
I pulled the plug and scoped the inside with my cheap amazon computer bore scope. Couldn't see the entire piston crown, maybe 75% or so. Looks good to me! Can see several spots where the carbon has been knocked loose, doesn't look serious. I will replace both screws and just run it. Probably lucky those weren't stainless screws!
Does locktite work for brass into steel? Is there a better way to secure these little devils?
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This was a fairly common cause of demise for many Tecumseh HH series engines as well..
I have one I bought for a spare ,a HH120 12HP one,and I was reluctant to take the cylinder head off it because I was told it had rum well,and it did have excellent compression..and finding a new head gasket locally is usually a big pain..

I'm glad I did remove the head though--I found the top of the piston and the cylinder head above it all dinged up with impressions of screw threads,it looked like Trilobite fossils...and the brass screw from the throttle butterfly was firmly imbedded in the cylinder head,above one of the valves,which fortunately wasn't damaged,nor was the lifter or camshaft..and the cylinder wall was perfect,not a scratch in it!..
I am not sure if the head is cracked where the screw got punched into it,it may be,but I have a spare head,so thats no big deal..
I guess they used brass screws for a reason,hopefully if one gets inhaled,it being softer metal,it may not cause extensive damage..but it can!..steel screws would guarantee some bad things will way to secure these screws is to mash the threads on the side opposite the screw head after installing them with a tiny chisel or punch,mushroom it enough so the screw cant come all the way out if it ever loosens..
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