I picked up a 1995 sl 750 Polaris jet ski charged up a new battery but when I push the start button nothing happens

Question edited for clarity.
Question edited to English.
Question moved from Computers.

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Failing battery or faulty trickle charger or onboard charging system depending where the loss is. Your question loses detail in translation. See if you can find a Dutch forum.

https://www.google.com/search?q=Dutch+polaris+ATV+forum

Loss of power

https://www.google.com/search?q=polaris+sportsman+90+no+power

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5 years standing is a long time. Carburetor float will be stuck. Pull the plugs and see if they are wet and also if you have a spark.

Strip and clean carb and jets.
Check fuel tap and fuel delivery.
Drain any fuel and replace with new.
Replace the spark plug.
No lights is odd. Check if there are fuses?

Manual

https://www.google.com/search?q=2000+polaris+scrambler+500+service+manual+pdf

Parts and Parts Schematics
https://www.polarispartshouse.com/oemparts/l/pol/50343730f870023468a741cc/2000-scrambler-500-a00bg50aa-parts

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Bad starter,replaced one on my grand sons not long ago,battery was weak,got it charged,still would not start,took starter off,it was locked up,they ordered one from Ebay,I installed,started right up,here's a site for a new starter,you can take off and take to Autozone to test to make sure.Also check the cable that goes from starter to the other connection.https://www.ebay.com/itm/STARTER-FOR-POLARIS-MAGNUM-425-4X4-2X4-1995-1996-1997-1998/262663578665?epid=8008132122&hash=item3d27f82429:rk:1:pf:0

get a new battery

Dead battery .,? Pull charge,.,or replace.,.go from there .,. First Try jumping it to even see if it fires if it dose then you know u need new battery...

Check your starter solenoid. You can trace it by following the power wire from the battery to the small solenoid block that contains a 30 amp fuse. You can bridge the posts on the solenoid by using needle nose pliers or whatever else you may have. If it starts up or you hear the starter run, you have a bad starter solenoid.

neutral try connect battery terminals charge battery,starter hanging up

If I try and pull start it and it just makes noises tried to jump start it and dose nothing what could it be I bought a new battery but no way of checking if it's charged or not

Check Float Height and reset the airscrew to around 1 -1 1/2 and make sure all jets are clean

check your fuse?