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post #1 of (permalink) Old 01-22-2002, 04:07 PM
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pulling the head??

how do i take the cylinder off the xr80? i want to replace the top end gaskets mostly the base gasket(under the last fin i think)i may also do a compression test. do i need to pull the cylinder to change the cam chain? thanks

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post #2 of (permalink) Old 01-23-2002, 09:42 PM
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Re: pulling the head??

Theres nothing to a 4-stroke like that. Pull yer tank and stuff off. .Theres two bolts holdin the cap ontop of the cylinder head. Pull them out... then you can see your rocker arms and cam shaft. . .pull the nuts off the top of those four bolts, and pull the rocker assembly off. Be careful for the dowel thingies on two corners. .take the cam sprocket off the shaft, and carefully take it out, loop a wire through the chain so u can suspend it from your frame. Then use two nuts to take each of the four studs outta the bike. Take out the camtensioner (if its on the cylinder head, i dunno what year your bike is) Take out the bolt on the left hand (flywheel) side of the head, and lift the head clear. (you'll have to move the camchain down through the hole.. its all common sense). Theres two dowels below that too, so be careful not to lose them down inside. ..Then u can lift the cylinder clear as well.. Ta da, now you got your cylinder stuff off, and can replace your gaskets. Just make sure u set the timing right when u put her back together.

Evan.
post #3 of (permalink) Old 01-24-2002, 12:02 PM
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Re: pulling the head??

Ihope Im wrong but I think to pulle the cam chain the cylindeer head has to be pulled, the bottom end has to be split also well thats how it is on xr 500 Id imagine the 80s are similar just scalled down. I hope Im wrong though cause that quite alot of work, just make sure you have service manual and a decent set of tools before going into the project.

service manuals make all the diffrence in the world.

Evan


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post #4 of (permalink) Old 01-24-2002, 05:21 PM
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Re: pulling the head??

Don't bother brian, timing sucks, better off not messin with it.


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post #5 of (permalink) Old 01-26-2002, 09:32 PM
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Re: pulling the head??

You MIGHT not have to split the bottom end to do the timing. Im not sure about your bike, but on my ol XL100 ..same as an xr pretty much .. . . there was just enuf room when you pulled off the flywheel and the magneto plate (thats what i call it anyways, the plate wit the points and coils) off, then u could take out the seal ,and there was just enough room to slip the chain in through there, and up into position . .. If theres notl, you've got a lotta work on your hands, and i wouldnt recommend doin it without the manual, or at least someone who knows what they're doin real well.. good luck..

Evan

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post #6 of (permalink) Old 01-26-2002, 10:53 PM
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Re: pulling the head??

god damn 4 stroke boat anchors.

WELCOME TO NEW JERSEY PLEASE THROW AWAY YOUR CONSTUIONS.

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post #7 of (permalink) Old 01-26-2002, 11:06 PM
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Re: pulling the head??

Brian, you rub the head, or make her do it.


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post #8 of (permalink) Old 01-27-2002, 09:53 PM
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Re: pulling the head??

ill do that josh

WELCOME TO NEW JERSEY PLEASE THROW AWAY YOUR CONSTUIONS.

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