Top end Rebuild for Yamaha Rxz

[franticxxx]

hi every one im new to this forum so please help me out
i own  97 yamaha rxz 4 speed 5 months back the bike picks very good and the third gear stretches upto 93 km/h after that the bike was on a complete stand still for four months continously due to rain.
After getting it serviced the topspeed decreased the third gears pulls upto 80 km/h only that to after a very long stress
have shown the the bike to a reputed tuner and porter in bhayandar (as i live in bhayandar)
but found no problem with the bike's engine nor the clutch plates want to get the problem fixed as the bike lacks topspeed please help me out anyone as soon as possible
the bike is currently running on k&n airfilter rc 1060 done jetting on the bike with an oversize jet the bike initial pick up was very good but still it lack topend the problem continued.
Is this due to the clutch plates or the jet or k&n pls help me ut as soon as possible
and also want to increase the performance of the bike suggest me needed mods for the bike
to increase my pick up and topend

[yax.ashra]

Hi friend !! Here are few tips to increase the performance and to max tourque of your devil just do the following checks :- firstly check whether the air filter is not blocked with dust and than just to make sure that it works fine remove the air filter out and than get the bike on long drive for @ 50 km and at the max speed possible. By doing this you should surely feel the difference and just replace the piston ring if your problem still persists .... And ofcourse adjust the carb after doing the above test !!!! enjoy racing !!!! alwayszzzzzz........

[Topspeed]

hi,
as u said previous u run 93kmph on 3rd & after service not going that speed, pls chk break setting for both wheel, tyre pressure, chk throttle play adjustment, it is opening full slide of carburetter or not, chk spark plug gap, should be good current, or chk installing new spark plug,
empty ur fuel tank, fill it fresh petrol from reputed petrol pump,
when u have installed K&N? befor or after, if after then upgrade main jet.
i m sure u ll get results

[Vimal (Tough Guy)]

Chk ur Chain whether its loose And Sprocket.lubricate both.Clean ur spark plug,Carbeurator  ,Air Filter and Exhaust pipes, Check Tyre pressure too.