Need help on BIG TIME power loss!

[rabbit_habits]

Hello Friends!

I have a very fail SP.

to reach 110km/h, i need to rev to RPM 8.

wasn't like that awhile ago

my friends SP will have made 150 with RPM8.

I got a buncha speculations.

I'm thinking worn out clutch plate or busted valve.

Any way to check/confirm is the clutch plates worn?

Approx how much to change?

busted valve=top service?

 

Seperate issue, anyone know approx price to change rear wheel bearing?

 

You guys are the experts, kindly adivse.

 

Thank you friends.

 

"it's about time they killed Osama"

[MiddleAgedBiker]

To check for worn clutch plates, start off your bike at a slow speed, say 15km/h. Kick up to 3rd or 4th gear, and open the throttle full. If the RPM revs up without the speed increasing, your plates are worn.

 

To check for worn valves, you'll need to do a compression test. Yes, if your valve is leaking, you'll need to overhaul the top-end. It could also be bad rings.

[CyBerKnighT]

To check for worn clutch plates, start off your bike at a slow speed, say 15km/h. Kick up to 3rd or 4th gear, and open the throttle full. If the RPM revs up without the speed increasing, your plates are worn.

 

To check for worn valves, you'll need to do a compression test. Yes, if your valve is leaking, you'll need to overhaul the top-end. It could also be bad rings.

 

Either those stated above or maybe you are slipping your clutch while riding?? Is your clutch fully released when you whack up to 8k?

[spaiduhz]

To check for worn clutch plates, start off your bike at a slow speed, say 15km/h. Kick up to 3rd or 4th gear, and open the throttle full. If the RPM revs up without the speed increasing, your plates are worn.

 

To check for worn valves, you'll need to do a compression test. Yes, if your valve is leaking, you'll need to overhaul the top-end. It could also be bad rings.

 

Or when you hit your top speed, does your tachymeter blip its rpm reading? Ie, from rpm 8k to 5k, back and forth.

 

Hopefully its just your clutch plates.

[MrIce]

hey i advise u bring ur bike to shop to check for everything

 

bike shop that i recommend would be

BIKEWORKZ at kakit bukit shun li indus park

planet at ubi

[0401897D]

just to share....i gt the same prob as u...after i my bike gt piston seizure...at tat time..the mechanic repairing says the bike still can go( make the 2t bigger)..coz i bz wif exams, after my exam, ask my mechanic to open up..hav to change piston n block..

[kaze892]

i have the same problem as well

 

Gear 6 cant rev pass 4k and speed keeps on decreasing

even though i throttle more/full throttle the speed still decrease and rev stuck at 4k

only after maintaining for a long time in gear 6 den it can rev till 8k and can only maintain speed above 100

anything below 100 rpm and speed will drop alot

 

In gear 5 rev till 4k can travel faster den gear 6

 

is my gear 6 worn out?

[PepperCrab]

i have the same problem as well

 

Gear 6 cant rev pass 4k and speed keeps on decreasing

even though i throttle more/full throttle the speed still decrease and rev stuck at 4k

only after maintaining for a long time in gear 6 den it can rev till 8k and can only maintain speed above 100

anything below 100 rpm and speed will drop alot

 

In gear 5 rev till 4k can travel faster den gear 6

 

is my gear 6 worn out?

 

sounds like a slipping clutch.

[Raptor]

Exhaust valve jammed and clutch plates and/or clutch springs worn.