YZF-R15 rider, GATHER!!!

[DerFuhrer]

So how does it feels now after installing?

Any figures or something? Like speed to rpm etc.

 

As if an angel is pushing :)Not the fastest R15 bike but at least better than my stock performance.

After a hassle of trial and errors with sprocket sizes,the data as follows: 7 rpm shows 118kmph and at 10.8rpm,the speedometer shows 171kmph before the power cut from the CDI kicked in. No need to bend down for aerodynamics to get 139kmph,just a further more twist on the throttle.

 

While at top speed, my add on Koso digital thermometer reads at 76 deg Celsius. Under a 30 min idle under hot sun,temperature soared till 93 deg celsius and constant. Bike moving at 8 rpm,temperature is at 74 deg celsius.

As long as it does not hit above 110 deg celsius,it is safe to operate the bike at high speeds.

 

Some flaws about this performance: Needs engine oil change at every 1200 km

Edited May 26, 2012 by DerFuhrer

[DerFuhrer]

??? So meaning that is like what... up the size to 800cc? XD

 

LoL...just my luck to get a proper big bore kit with a good mechanic as I knew some friends also tried using other kits however failed to get the expected results. End of the day,its just another 2B bike

[JSCJL]

As if an angel is pushing :)Not the fastest R15 bike but at least better than my stock performance.

After a hassle of trial and errors with sprocket sizes,the data as follows: 7 rpm shows 118kmph and at 10.8rpm,the speedometer shows 171kmph before the power cut from the CDI kicked in. No need to bend down for aerodynamics to get 139kmph,just a further more twist on the throttle.

 

While at top speed, my add on Koso digital thermometer reads at 76 deg Celsius. Under a 30 min idle under hot sun,temperature soared till 93 deg celsius and constant. Bike moving at 8 rpm,temperature is at 74 deg celsius.

As long as it does not hit above 110 deg celsius,it is safe to operate the bike at high speeds.

 

Some flaws about this performance: Needs engine oil change at every 1200 km

171km/h? You sure bo? Show the report card of the dyno leh..

[Soap]

LoL...just my luck to get a proper big bore kit with a good mechanic as I knew some friends also tried using other kits however failed to get the expected results. End of the day,its just another 2B bike

 

at the end of the day, we want to know what's the cost of the big bore set?

[SlowButSteady Bro]

Dun know if u guys notice this,Our R15 110Kmh is like a 2 stroke 150cc 120kmh.My fren KR travel @ 130kmh while my speedo only show 120kmh..

I notice that from 105kmh our speedo is somewhat very slow to reach 130.

[SlowButSteady Bro]

Frankly say no need big bore,It won't last long.Got 2 friends using spark 135 big bore 160cc and R125 big bore 155cc all need to overhaul back.Just improved on air system,Sprockets,Cam,Cdi,Ecu enough to survive on expressways good Liao.That kind of set up can get 150-160 easily

[f-50evolution]

Dun know if u guys notice this,Our R15 110Kmh is like a 2 stroke 150cc 120kmh.My fren KR travel @ 130kmh while my speedo only show 120kmh..

I notice that from 105kmh our speedo is somewhat very slow to reach 130.

didnt know that. anyway even after 105kmph is speeding so...yeah we shouldnt be going at that speed also

[SlowButSteady Bro]

dont know leh, now my bike 2nd time ald with this problem..knn..n they say its not e factory problem..

 

Fuel pump problem arise when ur bike/car is not even 4 years old got several factors.Common is always ride on reserve fuel thus insufficient fuel sucked into d fuel pump itself.If ur bike ardy left with 1 bar make sure to ride below 80 to find d nearest pump station,This is what an ex hong Leong mech told me about fuel inject engines.

[SlowButSteady Bro]

didnt know that. anyway even after 105kmph is speeding so...yeah we shouldnt be going at that speed also

 

Bro as an experienced rider if I ride on the fast lane to overtake cars I would do 110 centre lane 100 slow lane ur suka.To survive you must think that your 150cc 100kmh 1.6 car is only 86kmh leh.Unless u change to 15/39 sprockets la...My bro in law is a TP he say bike below 200cc 120kmh is only 106kmh capture on d speed camera due to its lightweight.But thing a bit differ if u downsize ur sprockets.

[foxin]

Frankly say no need big bore,It won't last long.Got 2 friends using spark 135 big bore 160cc and R125 big bore 155cc all need to overhaul back.Just improved on air system,Sprockets,Cam,Cdi,Ecu enough to survive on expressways good Liao.That kind of set up can get 150-160 easily

Yay, the thing about the big bore even from mechs around said that it wasnt built to last. But then, those that was used in bike production can be used too. That kinda quality also derived from the common ones that was pre-installed on OEM bikes. So I'm guessing with a good run-in and much TLC, it would last. Say... 3 years? Max?

[weeliang]

Anyone know where can get the suzuki slider or balancer at good price? The one with sliver and the end is black de. At the throttler end that thing.

[chiaph]

Anyone know where can get the suzuki slider or balancer at good price? The one with sliver and the end is black de. At the throttler end that thing.

 

I remember seeing someone selling rizoma products at cheaper pricing compare to local bike shop. You might wanna try the mo thread forum.

[Hustler88]

General : Hmm.....seems like alot of dicussion going on about performance and legal bikeshop issues.

 

Derfurhrer: im also interested in knowing how much u spend for the big bore kit and all bro.170km on r15 is the first time i ever heard bro.

 

Slowbutsteadybro : hey bro....i also heard around that playing with sporkets and cam all would help and be good, what sporket size is good for pickup, mid-range or top ? u should possess some valuable knowledge from ur experiences with bikes.

[Tazgirl]

Hi All, YZF-R15 riders, do you guys have this problem where when you ride and hits 3.5 RPM and above you can hear the piston churning (like chut..chut chut.).. and as you throttle more up to 7RPM its churns faster? Is it normal for this bike? I used to ride an old caburator CBR 150 and doesnt hear this problem. Please help! My milleage is now at 1600KM. As per manual instructions, as long as you hit above 1000KM milleage you can ride normally. I break the engine as per instructed in manual. Exhaust smoke looks normal.

[f-50evolution]

Hi All, YZF-R15 riders, do you guys have this problem where when you ride and hits 3.5 RPM and above you can hear the piston churning (like chut..chut chut.).. and as you throttle more up to 7RPM its churns faster? Is it normal for this bike? I used to ride an old caburator CBR 150 and doesnt hear this problem. Please help! My milleage is now at 1600KM. As per manual instructions, as long as you hit above 1000KM milleage you can ride normally. I break the engine as per instructed in manual. Exhaust smoke looks normal.

very loud ah?

[f-50evolution]

General : Hmm.....seems like alot of dicussion going on about performance and legal bikeshop issues.

 

Derfurhrer: im also interested in knowing how much u spend for the big bore kit and all bro.170km on r15 is the first time i ever heard bro.

 

Slowbutsteadybro : hey bro....i also heard around that playing with sporkets and cam all would help and be good, what sporket size is good for pickup, mid-range or top ? u should possess some valuable knowledge from ur experiences with bikes.

big bore ard 700sgd i tink

[Tazgirl]

Hmm, not loud, cannot hear when wear helmet, only when i open visor and put my face closer to tank then can hear it churning..its doesnt sound harsh, but my thinking is that i thought we r not supposed to hear such things? Any help?

[f-50evolution]

Hmm, not loud, cannot hear when wear helmet, only when i open visor and put my face closer to tank then can hear it churning..its doesnt sound harsh, but my thinking is that i thought we r not supposed to hear such things? Any help?

i hear that sometimes. i believe its the chain

[f-50evolution]

Hmm, not loud, cannot hear when wear helmet, only when i open visor and put my face closer to tank then can hear it churning..its doesnt sound harsh, but my thinking is that i thought we r not supposed to hear such things? Any help?

i hear that sometimes. i believe its the chain

[chiaph]

i hear that sometimes. i believe its the chain

 

It isn't from the chain. I sometimes heard that weird noise too. However after servicing , the noise subside but after awhile it still could be heard.

[foxin]

Hi All, YZF-R15 riders, do you guys have this problem where when you ride and hits 3.5 RPM and above you can hear the piston churning (like chut..chut chut.).. and as you throttle more up to 7RPM its churns faster? Is it normal for this bike? I used to ride an old caburator CBR 150 and doesnt hear this problem. Please help! My milleage is now at 1600KM. As per manual instructions, as long as you hit above 1000KM milleage you can ride normally. I break the engine as per instructed in manual. Exhaust smoke looks normal.

Need to hear then will know eh. Maybe you can come out for gathering next time for the r-series and we can talk more

 

But "Exhaust smoke.." itself is one red flag for me! ??!!!! SMOKE?!

[Tazgirl]

Hahahaaha.. i mean no smoke la.. normal..but the sound does bothers me. Ok so whens the next gathering?

[Tazgirl]

chain? but my milleage only 1600km. and i clean n lube my chain every 500km. hmm.. where do you hear the sound? near tank or behind you?

[foxin]

Hahahaaha.. i mean no smoke la.. normal..but the sound does bothers me. Ok so whens the next gathering?

Think there is one in June about some biking events. Would be a great event where many of the ppl here will be going I think

[SlowButSteady Bro]

Any bro lowered their fork?Mine is 1 inch but long ride too strain probably cause I'm tall.Thought of raising to half inches during next servicing.But high speed is best due to the aerodynamic