AtoXS
XS650 Addict
Hey guys I'm looks for a few opinions from the guys who really know the XS motor and what the regular weak points are to focus on. I really don't know much about it, when it last ran, the mileage, or general condition. This is a ground up build that some of you might have already seen on the Greasy Dozen thread or on IG. For now the goal is just to get this pig running well enough to get it through the summer and rip it apart if need be next winter. With so many things to do and buy for this build, a motor rebuild isn't really one of them. So here is the question, what is the minimum you would do before dropping this motor back in the frame? I plan to call and order what I need today or tomorrow form 650central, but I need a shopping list. Here is what I have or plan to buy for sure.
HHB PMA
PAMCO ignition
Tack drive plug
Side cover gaskets
Starter gear cover gasket and freeze plug (going kick only)
Oil filter with gasket and oil sump filter with gasket
Cylinder head gasket (looks like this was leaking right in front of the oil tube)
Valve tappet cover seals and valve guide seals?
1 piece pushrod and seal
Oil line copper washers?
Cam chain?
Cam chain guide(Definitely fucked as they all are, evident in the photos below)
I'm sure I'm missing some shit, what are some other problem seals and gaskets that should be remedied. I guess I should also say that I did a compression test on the motor in the stand and got some low numbers, around 90. Then I took some PB buster, hit the intake and exhaust ports and put a little oil in each cylinder and turned the engine a bit to cycle it. I let it sit for a few days then hit the valves and openings with a brass brush from a gun cleaning kit then took another test and got 117 on each side. With the oil filters out I saw the usually plastic shit and metal shavings in the filter, but they don't seem to be magnetic and look aluminum, but I understand that to be all cam chain guide issues that are very common and easily fixable.
Check out the gayed up photos I pulled from IG, I can also take better ones when I get home if that helps anyone, let me know, thanks.
HHB PMA
PAMCO ignition
Tack drive plug
Side cover gaskets
Starter gear cover gasket and freeze plug (going kick only)
Oil filter with gasket and oil sump filter with gasket
Cylinder head gasket (looks like this was leaking right in front of the oil tube)
Valve tappet cover seals and valve guide seals?
1 piece pushrod and seal
Oil line copper washers?
Cam chain?
Cam chain guide(Definitely fucked as they all are, evident in the photos below)
I'm sure I'm missing some shit, what are some other problem seals and gaskets that should be remedied. I guess I should also say that I did a compression test on the motor in the stand and got some low numbers, around 90. Then I took some PB buster, hit the intake and exhaust ports and put a little oil in each cylinder and turned the engine a bit to cycle it. I let it sit for a few days then hit the valves and openings with a brass brush from a gun cleaning kit then took another test and got 117 on each side. With the oil filters out I saw the usually plastic shit and metal shavings in the filter, but they don't seem to be magnetic and look aluminum, but I understand that to be all cam chain guide issues that are very common and easily fixable.
Check out the gayed up photos I pulled from IG, I can also take better ones when I get home if that helps anyone, let me know, thanks.
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