The sport bike that cannot speed

[rabbit_habits]

hi friends,

im riding a NSR150SP

my bike has been underperforming recently after an engine overhual

starting to feel like im riding a vespa with a bad posture.

at gear6, rear sprocket 39T

RPM5=70km/h

RPM6=90km/h

PRM7=100km/h

 

it used to be

80,100,120.

 

ive changed the clutch plates, top service, changed piston, turned the carb

still no effect at all.

 

another problem is the fuel consumption is from 200km a full tank to 150 a full tank.

 

anyone got suggestions where the problem might be for the poor milage and poor speed?

 

thanks friends

[CSV]

engine overhaul, you're supposed to re run in the engine.

 

so it will naturally feel sluggish for the first 1k km.

 

either that, or a badly done overhaul.

[adesmond2]

hi friends,

im riding a NSR150SP

my bike has been underperforming recently after an engine overhual

starting to feel like im riding a vespa with a bad posture.

at gear6, rear sprocket 39T

RPM5=70km/h

RPM6=90km/h

PRM7=100km/h

 

it used to be

80,100,120.

 

ive changed the clutch plates, top service, changed piston, turned the carb

still no effect at all.

 

another problem is the fuel consumption is from 200km a full tank to 150 a full tank.

 

anyone got suggestions where the problem might be for the poor milage and poor speed?

 

thanks friends

 

did you change your chain + sprocket? and overhaul how long already? Run in finish?

lastly where you did all this?

[rabbit_habits]

Hi friends.

Thank you for the response.

My front and rear sprocket teeth count is unchanged. 13front,39rear.

It has ran more than 1k.

The performance is still toss.

Did it all, with many days and hours at ah boy.

What do u guys think could be the prob?

Thanks for input

[NSRog]

I believe its a bad job done. should have gone to more reputable shops.

[KeraKing]

sound like the sprocket have been changed though..

hmm try changing the front to 14..

if still bad change rear to 38

[adesmond2]

sound like the sprocket have been changed though..

hmm try changing the front to 14..

if still bad change rear to 38

 

TS..

I do agreed with keraking.

 

No matter what sprocket.. 13 seems abit toooo small.. I tried it once and almost killed myself.. lolx..

anyway, change to 14 at that bike shop and you will feel a huge diff..

[rabbit_habits]

alright, ill try to get the sprocket changed to 14T and 38T

thank you friends very much for the contributions.