Performance Dropped

[Nalgene]

I have problem regarding my sniper. I'm using 14x41 combi and it works fine for until one day my problem occur little by little.
I'm using stock cdi and before my 3rd gear limits at 105kph. now it rev limits at only 90kph on my 3rd gear.
I install my racing cdi to test for a drive, on 3rd gear my speed stalls on 110kph rather than the usual 120kph on 3rd gear.
On 4th gear acceleration is good up to 110kph but then it will start running slow but the engine sound is reving up and screaming but I cant feel the acceleration anymore than it used to be.
And it slowly reaches 120, then 125kph than the normal 132kph before on normal position.
Tappet setting is good. I just done it.

What else could be wrong?

 

[Stockbore]

Let me think, same RPM but less speed... Heartbreaker!!! UP

 

[SNIPY 135]

try to check ur piston rings bro...

 

[Nalgene]

piston is good bro no leackage

 

[SNIPY 135]

piston is good bro no leackage

if piston is good then check on head, or maybe its just ur clutch lining...

 

[Gerry Jaloro]

Loose compression...

 

[sniper31]

clutch lining worn out...based on my experience!

 

[Nalgene]

Thanks for the response

 

[mark anthony landayan]

mine is weird .. dapat mainit makina talaga, pagnakabyahe kona mga 10km yun magilas na

 

[Sniper 03]

We have a same problem bro

 

[mark anthony landayan]

We have a same problem bro

owww really? i've experxience that when our motor club go for 120km ride, sa umpisa di talga ko makasabay, 110kph lang ayaw na, nung nakalayo na at nag init na talga engine ok na takbo, magilas na,

 

[JapSpeed]

owww really? i've experxience that when our motor club go for 120km ride, sa umpisa di talga ko makasabay, 110kph lang ayaw na, nung nakalayo na at nag init na talga engine ok na takbo, magilas na,

i think that's normal if your bike is properly tuned during highest and safe engine temp... i mean kng ituno mo yng carb mo na hindi pa ma init makina, malakas sya sa ganong temp pg mainit na makina malamya na... ganun dn if ituno mo yng carb mo pg normal na ang temp ng makina... hidi masyado malakas pg hindi pa ma init pero kng mainit na maganda yng response ng throttle... my own experience lng...

 

[gunkhean]

do the top overhaul sir, including, grinding ur valve, change your valve stem seal, change ur cam if worn out, teppet also need change. if possible porting ur head as well. then check ur piston ring. clean all the carbon deposit inside head & piston. and of cause change all the head & block gasket. I think the bike will be restore the performance, if pressist, I think u need to change ur clutch plate for HC, autocluch set & clutch for non HC. just my 2 cent.