Are there timing issues with the 2006 rmz 450? I replaced the valves, (bent from timing) cam timing chain, oil and oil filiter. When I try to start it it backfires but will start... Once it gets hot and you stall it, it will NOT restart unless you let it cool all the way down. any suggestions?

can be improper rebuild rings not correct --valves --gaskets etc

Sounds like a timing issue or simply bD spark plugs. Do a spark check and see if you have a kice blue arc on the plugs. Also I've seen the flywheel key break on those before. That situation will greatly affect the timing Nd cause back firing also check your valve clearance.

Go to an internet OEM parts source such as mrcycles.com and look up the part # for the two different machines. If the part # is the same it will interchange.

you replaced the lifters? why? the engine is out of time, the cam position determines if its on compression stroke or not. you may have bent valves, if not you are lucky. the cams have pins to hold them in time and then the chain is installed with crank on #1 tdc (keyway up). if all is lined up correctly and it doesnt have compression, you have bent the valves. Water pump replacement is not a job for a DIY.

my 06 rmz 450 timing chain jumped and rode it once for bout 30min, nothin interally went went wrong just went like **** lol

You can purchase a maintenance manual for your bike here - http://www.tradebit.com/tagworld.php/rmz450 They charge 10.95 for the book. There should be a manual chain tension adjustment using allen wrenches, but you'd do well to get the book and do it the Suzuki says. Otherwise, you could wind up with a broken chain or jumped timing to reset.

Chances are you need to do a complete tune up. This means a new spark plug, cleaning the carb, new air filter and new piston rings. I would also re-seat the valves. Any further top end work ( replacing valves, bore cylinder and new piston ) is entirely based on what is found after tearing into the head.

It definately sounds as though you've got your cam gear set 180 degrees off.When your timing is at top dead center your crankshaft will be at TDC on the guage, the cam gear will have both of the lobes at 10:00 and 2:00 away from the surface of the valve they serve on the number one cylinder. This can only be see if the valve cover is removed, which at this point I'm sure it is. Thank you, Dana

Depending on how hard you ride that will determine the time , I've known of some racing buddies of mine that a total rebuild is sometimes the case,Your manual will give you some indication but the best indication is your judgement on how hard you are going to ride it.

I put my piston to toop dead center and readjusted my cam chain and it seems to be running fine. The only thing I had to do was to turn the idle up a notch which still kind of gets me....but it's better now.