Need help with timing on a 98 sportsman 500
#31
55-95 psi compression on average because of the decompression device. Some machines may show a little higher.
#36
You don't have to pull it.. Just a visual check is sometimes all that's needed if it's ground down bad enough. If in doubt measure the lobes and look at the rocker arm for scarring. Here's a bad one up against a new one.
#40
Well OPT so just went ahead bit the bullet and finally put a new cam in it to no avail still idles like a dream but when I give it throttle it bogs out with no gain in rpm as a matter of fact it almost stalls


