Does my Sportsman 500 have enough compression?

[Sportsman500Rider]

so i did a compression test on my 1997 sportsman 500. i just removed the plug and screwed in the gauge and cranked it over with the electric start. The most i got was about 70psi. what is it supposed to be? we might be putting in a new cam, is there any point in rebuilding it, or should i just put the cam in?

 

[Rhodesie]

that's about all you will see because of the compression release. is the exhaust lobe wiped off? i have had those come through the shop with over 20,000 miles on them and never been cracked.

 

[Sportsman500Rider]

I think the exhaust lobe is worn off, because it doesn't have any power as of late, and i took it to the dealer and they said the cams gone. look at my other post on the mud pit chat titled " do i need a camshaft?" and see if that sounds like the prob

 

[Rhodesie]

I think the exhaust lobe is worn off, because it doesn't have any power as of late, and i took it to the dealer and they said the cams gone. look at my other post on the mud pit chat titled " do i need a camshaft?" and see if that sounds like the prob

most likely cam. if the unit is still in good working condition it's worth putting the money into. those year of 500's were tough as tanks.

 

[Sportsman500Rider]

my question is, why does it seem better sometimes, than other times?

 

[Rhodesie]

my question is, why does it seem better sometimes, than other times?

not sure. should be consistently weak if its the cam.