any problems with your z?

[450rJam]

I adjusted the valves and removed/cleaned every needle/jet in the carb.

it helped but the compression is down around 165-170 psi.

I think it may be time for rings

at least it will pull the front tires up now (in 1st gear only)

[bloodmoney23]

Mine still runs fine but has a loud valve train whine noise. Its normal amongst suzu's but the LTZ 250 and 400 make the noise the worst. Its actually normal. Power wise I have a K&N Filter, and Pro Circuit Slip on and i can pull the tires off the ground 1st through 3rd and it keeps up with all other 250's and some 300's. So if you have a loss in power I would def check jetting first then move into the motor. I would say it is piston and rings or jetting.

[450rJam]

maybe I didnt let it warm up enough before the test drive.............

my kids where riding it around the back yard and doing some pretty impressive sliding around a long berm
(it wouldnt do that before)

so I go out there and kick them off for a min.

this thing runs ALOT better.......... front will come up in 2nd now
and the bald tires are really evident now

ha ha ........................... scary thought but I may keep it

ordered some spacers for the rear and plan on flipping rims on
the front so the daughter can keep the rubber side down easier

picture was snapped just as she was bailing but got her leg caught on the flag....... ha ha girls are funny