Clutch when my bike is driving the clutch is slipping. what would be wrong? and could i repair my bike myself? it is a Kymco Striker 125cc.

Question edited for clarity. I am sure hard acceleration causes 'exhilaration', but it was the wrong word.

Second gear put the most strain on the clutch for the longest time. First gear is a short shift with the highest torque, second gear is a longer shift but only with marginally less torque. Either the clutch is badly adjusted or the clutch plates and springs need changing.

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Service Manual

KYMCO VENOX 250 Service Manual - Clutch Removal

ManualsLib https://www.manualslib.com > ... > Service manual
KYMCO VENOX 250 Manual Online: Clutch Removal. Remove the four clutch lifter bolts. Remove the clutch lifter and four tension springs.

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  One Way Clutch Removal - KYMCO Venox 250 Service Manual ...

  https://www.manualslib.com > ... > Service manual
  KYMCO Venox 250 Manual Online: right crankcase cover removal, One Way Clutch Removal. Drain The Engine Oil. Disconnect The Clutch Cable. Remove The Right ...

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you dont need vin for parts year make model -----dealer --atv repair shop--online search for parts

Clutches do wear out eventually especially if you 'slip' it regularly. First check the basics. These are usually the quickest, cheapest fixes.
Check it isn't something between the lever and gearbox 'sticking'. Sometime trail dirt can get into the levers and cables gumming everything up.
Do this with the engine OFF and the keys OUT.
If you can, remove the clutch cable from one end. Work the lever on the handle bar to see if it moves freely. Slide the cable backwards and forwards through it's sleeve to see if it slides easily. Next work the lever on the actual gearbox. This might be stiff but it should move smoothly and return to it rest position every time. If these all move freely the issue could be the clutch plates inside the gearbox.
Next pull the clutch in, start the bike, and put it into first gear. Only give it enough throttle to stop it stalling. Gently and slowly let the clutch out and feel to see if the bike rises evenly with the lever or grabs and lurches forward.
If it lurches and the levers and cables move freely you might need to replace the clutch components.

Try pushing it faster and try another gear 3rd is usually good and try sort of jumping downwards as you drop the clutch

buy a clutch kit should have clutch plates and friction plates make sure it has the right oil as well wrong oil will burn the clutch plates up

the oil filter is above the oil plug, you have to remove the clutch cover etc.. its just a piece of fine wire mesh

This is not a known problem on this type of bike. The clutch was designed to do the job without slipping. This is a repair you can do yourself if you have the tools.

Assuming no updates, you original clutch plates are 25 years old. I would suggest you get a new set of Barnett clutch plates. The dealer can get them for you and install as well.

google your kymco model and cc SERVICE MANUAL.i found mine in pdf.it was chinese and english on the same page.