Got The Holeshot
Arm chair racerJust too addicted
Well, Got my second z running today and took it 'round the yard. When I stopped to check things out, I saw coolant comming out around the front head nut. dosen't seem to leak anywhere else, just around that stud/nut. Wells up pretty quickly, wipe it off and it drips again in about 2 seconds. Fresh piston & bore, fresh gaskets. What could cause this? What do I need to do to fix it? Thanks,
Whiteman
Trikes: Cagiva 200, 85? Tiger 250,(2)84 200x's , (3)86 200x's, 87 200x, (5)85 350x's, (2)86 350x's, (2)85 250r's, 86 Tecate, (3) 85 250sx's Restoring: 83 200x, 86 250sx. Too many utility trikes to list.
At The Back Of The Pack
Arm chair racerAt the back of the pack
If its anything like my YZ it should have copper washers under the head bolt which actually keep the wqter from leaking. If you just rebuilt the engine you probably will need to replace the copper washers.
Not sure about this hopefully someone can back me up.
Power User
Roostin Away
also u might want to check and see if the head is warped nuthing a piece of glass and sand paper cant fix. could be the washers too.
looking for a TRI-Z 250 to restore at the moment
LONG LIVE THE 2 STROKES !!!
Got The Holeshot
Arm chair racerJust too addicted
or...........................did you put some gasket sealant on it...even with the copper washers the sealant will fill the gaps and stop the leaks
Wanna race? ;-)
85' Tecate (still looking for entire front brake asembly...)
bonanza mini-bike
if you cant ride with the big boys...put it back on the trailer
Power User
Teaching quads a lesson
Improper head bolt torque......
Trikes:
1973 Honda ATC70-orange!
(2)1985 ATC70
1985 Big Red 250
1985 250R
Banned
The day begins with 3WW
It doesnt have copper washers.
Every time Ive put a new gasket on the top of a Z, after it got hot once, I had to retorque it. Im not sure about the scientific explanation, but Ill just say, when you do a TriZ, after installation, start it up, run it until it reaches normal operating temp, shut it down, let it cool back down, and retorque the head, and youll not have as many of these problems. I also highly recommend Copper Coat spray on sealer which is designed for head gaskets.
Got The Holeshot
Arm chair racerJust too addicted
Thanks Guys. Will check it out again tomorrow.
Trikes: Cagiva 200, 85? Tiger 250,(2)84 200x's , (3)86 200x's, 87 200x, (5)85 350x's, (2)86 350x's, (2)85 250r's, 86 Tecate, (3) 85 250sx's Restoring: 83 200x, 86 250sx. Too many utility trikes to list.
New to the board
Arm chair racerNew to the board
good rule of thumb always re-torque after a few heatcycles.saves time and money.
it aint fun unless someone gets hurt.
Got The Holeshot
Arm chair racerJust too addicted
Was planning to re-tighten after a little run time. But this was on initial startup. Never had this happen before so was concerned. Hopefully I don't have a warped cylinder head.
Whiteman
Trikes: Cagiva 200, 85? Tiger 250,(2)84 200x's , (3)86 200x's, 87 200x, (5)85 350x's, (2)86 350x's, (2)85 250r's, 86 Tecate, (3) 85 250sx's Restoring: 83 200x, 86 250sx. Too many utility trikes to list.
Got The Holeshot
Arm chair racerJust too addicted
Well, re-torqued all the head nuts. They were all a little loose. Fired it off and no leaks!!!! Thanks for all the help guys! Got another one back on the road.
Whiteman
Trikes: Cagiva 200, 85? Tiger 250,(2)84 200x's , (3)86 200x's, 87 200x, (5)85 350x's, (2)86 350x's, (2)85 250r's, 86 Tecate, (3) 85 250sx's Restoring: 83 200x, 86 250sx. Too many utility trikes to list.
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