The engine turns over and everything but it wont start. no spark

wrong forum this is Suzuki, not bikes.?
post to your bike class for best answers. and 100x faster
no starts, or no crank?
if it cranks and dont start then , check spark next.
all gas engines, same, only (what makes spark and fuel change)

Is it getting gas properly? Has it been sitting around for a while? The carburators on motorcycles need to cleaned after sitting around. The jet could be full of varnish. Are you getting spark for sure? Pull out a spark plug and put it in the wire, crank it over and see if the spark plug sparks. When you pulled the plug was it wet at all with gas? Then it probably isn't getting gas right. Just some of the things you could try.

the batery is ok if the engine start avery time. Also the volts are ok.
Have you made any modifications on it? Sport exhaust, sport air filter?
Check also the air filter. Make sure is clean...
Idle speed should be around 1000-1200 rpm. You should have a screw to fix the idle speed. Check it on the carburetors area, or download the manual from internet.

Cheers.

This sounds as if it is suppose to happen, a safety device of some sort. The closest freebie manual that I can source is a 2003 one, but it may have the info you need, else contact your local Suzuki outlet, they will know:
http://www.carlsalter.com/motorcycle-manuals.asp

remove spark plugs from block, place tread on block, turn over engine, best if blue, white ok, orange spark is bad, if you are getting orange, your ignition system is weak, usually the coil, and needs to be replaced. also make sure to take out the plugs after attempting to start, andmake sure they are wet and getting fuel.

It will have a fuel filter in the fuel line (should be easy to find) but does not have a fuel pump. Firstly i would check you have spark on all cylinders as this is the most likely thing to be going wrong. Once you are sure you have spark you can start trouble shooting fuel and air delivery problems.
To check for spark remove a sparkplug, insert it back into its HT lead. Place the threads of the sparkplug on the engine block and crank the engine. A strong blue spark should be visible.

I posted this for a similar problem, maybe it can help. Are you sure it's getting gas to the carbs? Some people don't realize the 99-02 SV650 has a vacuum-actuated fuel pump, and sometimes it can get stuck. Mine has had this problem, and it took me a while to determine it was the problem. I would guess it only happens after the bike has been sitting a while (ours unfortunately sat for a year or so without being run).

Best way to check it is to lift the tank (it's bolted to the frame on the right side of the engine just under the tank). Unplug the line toward the front of the motorcycle from the fuel pump, and connect some spare fuel hose to it running to a can next to the bike (don't want to get gas everywhere!). With everything else still connected, crank the bike for a short period to see if any fuel comes out (shouldn't take long). If not, then move backward and ensure fuel will flow from the vacuum-petcock when the bike is cranked. If that does work, your fuel pump needs some work. I was able to take mine apart and unstick it.

you have to tune your engine using the following ways.
1. tune your fuel air screw for optimal settings.(in most cases inappropriate tuning is the reason for backfires)
2. check and clean your spark plug and the wire connecting your spark plug.
3. check the voltage levels of the battery. if they are low then recharge them.

I would check for compression on the cylinders. a engine has to have fuel,fire and compression or it wont run. Check the specs to get the operable compression levels.

Have you checked the coil to make sure it is firing?