I have a suzuki rm 125 1994 model when i pull the clutch lever in to put it in gear the clutch doesnt work t jst crunches into gear

More information please. What EXACTLY is it doing? Slack clutch lever? Stuck clutch lever? Crunching or grinding as you try to shift? Grabbing and stalling as it selects the gear?
Start at the clutch lever. Check it is pulling the cable then check at the transmission end that the cable is connected and moving with the lever. Next check the lever on the actual transmission. Does it seem too tight or too slack? These will give clues as to where the issue could be.
It's a 37 year old bike so is it the original Clutch? Even motorcycle clutches wear out.

Question edited for clarity.
Question moved to Suzuki.

Normally caused by cracked return springs or bent selectors, but in your case, it's not. There is a shift kit available to fix the issue because it is well known.

http://www.factorypro.com/prod_pages/prods,rm-z250,07-13.html

https://www.google.com/search?q=2006+suzuki+rm-z250+shifting+problems

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with the engine off put it in gear pull in the clutch if you can't move the bike the clutch is dragging and needs adjusting

I am sure it's a wet clutch. Pop your bike in neutural. Remove your clutch crank case cover and, using a screwdriver, separate the plates manually. Put the tip of your screwdriver between the edge of the clutch plates and turn the screwdriver. It will break the seal of your plates and spacers. Put it all together again. Do a fluid flush and refill your oil to recommended levels. Get the bike running again and give it a go. Should be fine. Good luck!

You may simply just need to adjust your clutch cable. Make sure it feels like your pulling on something, there should be some resistance. Since you'll be adjusting it while the plates are cold you need to leave some free play in the lever or when your clutch pack gets hot it will start slipping and you'll end up with a smoked clutch. What I mean is grab the lever and pull it in until you start feeling resistance and then adjust it our until there is maybe a quarter inch of free play. Hope it helps. If its not that then you've got some internal problems with your plates and fibers not separating correctly.

assuming the cable is fine and you have pressure at the lever.sometimes the plates can stick together when it sits for a while. put it in top gear 6th, put the front wheel against a wall, hold the clutch in and put some weight on the kick start. or push start it and hold the clutch in and vary the throttle to try and free the clutch

Hi, sounds like the friction & metal plates in the clutch are stuck together. Has the bike sat for a while? If so, the clutch might free up if you get it started, roll along and put it in first, then get through to 4-5 gear, and holding the clutch in, accelerate & back off the throttle. Sometimes this will free them up, but careful to do it somewhere large enough. If the right type & amount of oil are in the gearbox (4 stroke car or bike engine oil that doesn't have friction modifiers in it), take the oil fill plug out 7 use a light to look at the ckutch basket. If you can see it, you should be able to pull the lever and see the pressure plate move outwards slightly. Good glycol coolant should do the job, straight coolant should be fine around 500ml. Hope this helps :)

is the cable pulling the clutch lever fine should move a good inc or two if it is moving fine it could be pin on in side of clutch housing dose it go into gear with out clutch...???

First, try the cable adjustment at the lever end, if no more movement re-adjust inwards, then adjust at the clutch end.
If no joy, then it is either the lifter mechanism or the clutch its self.
Ride Safe
Bike-Doc

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1) Can you push the bike while it's in gear with the clutch pulled in? [If so, clutch is disengaging OK]

2) If not, check when you pull in the clutch lever that it pulls all the way through to the actual clutch [If not, replace broken clutch cable]

3) If so, clutch is binding. Either fix it properly by stripping the clutch.. or just brute-force the plates apart. :-)

Brute-force clutch plate separation: First make sure you have enough oil in the engine (wet clutch), then basically you're looking at either riding it with the clutch lever pulled in until the plates come apart or with the rear wheel in the air CAREFULLY running it in first gear against the rear brake while the clutch is pulled in.