[Group] SBF Yamaha 125Z

[QuoVadis]

i just got a z. been awhile since i rode a 2stroke. cheers guys. glad that some people still appreaciate 2strokes

[abituary]

hey guys anyone have problem with cone bearing before? my cone bearing loosen quite often. is it time to change? when i brake, some what like riding horse

[drak3st3r]

hey guys anyone have problem with cone bearing before? my cone bearing loosen quite often. is it time to change? when i brake, some what like riding horse

 

There is actually a no. Of reason for the feeling u get when u brake. From brake disc problem to caliper problem to fork to come bearing.

But if u think its the cone bearing its very easy to check actually. If u have main stand. Put your bike on it and sit on the bike such that the front tyre if off the ground. Then slowly turn the handlebar from left to right and right to left. U have to check 2 things now. One is how smooth it is. Is there like some rough spot or like something grinding and all. Use very little force to turn so then if there is a bump u will require more force to turn. If its smooth high chance nothing wrong with your cone bearing

Second thing is see how much force u need to turn. If very very little like bicycle. Can be the bearing loose. Just tighten can. If alot of force then can be too tight. But then again it's up to the individual cause some like lighter. Make cornering easier but have to hold firmly so that the handlebar doesn't turn on its own and during straight road also. If tight the straight road easier to hold but cornering a little harder. So adjust according to your preference.

 

If both not problem then have to check more things ready.

[neng]

Jus owned a 125z..There is a little prob that i face.my bike cant even go over 100..not asking for much,atleast able to touch 120 easily will be enough jus to run away from lorries and buses..so can someone tell me what might be the problem? Use to own a tzm long time ago and somehow i remember i did face this prob before on my tzm but solve it but changing valve..125z got valve?

[neng]

And ya its just a transport bike.not keen on changing to racing parts or rxz carbs etc..jus looking for answers on how to improve the bike so it can touch 120 smooth and effortlessly..Thank you

[drak3st3r]

Jus owned a 125z..There is a little prob that i face.my bike cant even go over 100..not asking for much,atleast able to touch 120 easily will be enough jus to run away from lorries and buses..so can someone tell me what might be the problem? Use to own a tzm long time ago and somehow i remember i did face this prob before on my tzm but solve it but changing valve..125z got valve?

No valve. It could be a few reason. Have u serviced it?? Also when u at hundred how the the bike sound. Is it like rpm is higher than 7 but speed still 100. If that's how it is then its the clutch if not jetting problem. Try servicing first.

[zuhair]

looking for a cheap 125z. any condition i don't mind. but as long very cheap and no coi. text me at 81186606 - zuhair

[MadAxel]

Jus owned a 125z..There is a little prob that i face.my bike cant even go over 100..not asking for much,atleast able to touch 120 easily will be enough jus to run away from lorries and buses..so can someone tell me what might be the problem? Use to own a tzm long time ago and somehow i remember i did face this prob before on my tzm but solve it but changing valve..125z got valve?

Sumtin very wrong with your 125. Go and service. And also check your sprocket size.

[neng]

No valve. It could be a few reason. Have u serviced it?? Also when u at hundred how the the bike sound. Is it like rpm is higher than 7 but speed still 100. If that's how it is then its the clutch if not jetting problem. Try servicing first.

 

Thx for the reply..my rpm nvr goes over 6..it be stuck at rpm 5-6 at speed of 100..maybe a little more if its a downhill.if its a uphill,had to kick down to gear 5 or it will kind of loss power and went down to 80.just did normal servicing..have not service carb yet and have not tell any mech of my prob cuz i noe how easily i can get fool by dem by tellin me all kind of bullshits..so decide to find out a little bit more before i go to any mech..My sprocket size is 35/36 if im not wrong.

[imrab]

do u guys noe where i can get an original 125z exhaust for inspection? confirm pass. or anybody willing to sell to me. kindly whatsapp me at 91259584

[MadAxel]

do u guys noe where i can get an original 125z exhaust for inspection? confirm pass. or anybody willing to sell to me. kindly whatsapp me at 91259584

Juz send to shop. They can send inspection for you for ard 50 bucks. Conferm pass

[drak3st3r]

Thx for the reply..my rpm nvr goes over 6..it be stuck at rpm 5-6 at speed of 100..maybe a little more if its a downhill.if its a uphill,had to kick down to gear 5 or it will kind of loss power and went down to 80.just did normal servicing..have not service carb yet and have not tell any mech of my prob cuz i noe how easily i can get fool by dem by tellin me all kind of bullshits..so decide to find out a little bit more before i go to any mech..My sprocket size is 35/36 if im not wrong.

 

bro i dont understand. normal servicing they will service your carb and block and all. how come u service no service carb.also i really cant tell u whats the prob without hearing or testing your bike. if u free come meet me one day. ill help u do a test ride

[drak3st3r]

btw guys anyone interested in a racing block let me know. i have one. willing to exhange for a standard block if u are short of cash.

 

comes with head, block and piston. piston size 57mm. can fix and do minor setting for you. then later u can go shop and do full tuning.

if buy then 120 bucks if trade then top up 40 bucks will do.

 

also got modified exhaust. anyone wanna exchange. no need top up anything. just trade and go.

contact me at 82334350 for more details.

[abituary]

Thx for the reply..my rpm nvr goes over 6..it be stuck at rpm 5-6 at speed of 100..maybe a little more if its a downhill.if its a uphill,had to kick down to gear 5 or it will kind of loss power and went down to 80.just did normal servicing..have not service carb yet and have not tell any mech of my prob cuz i noe how easily i can get fool by dem by tellin me all kind of bullshits..so decide to find out a little bit more before i go to any mech..My sprocket size is 35/36 if im not wrong.

 

haha mine also same stuck at rpm 6. dont know whats wrong. my sprocket size 15/39

[afiq661]

haha mine also same stuck at rpm 6. dont know whats wrong. my sprocket size 15/39

 

Change to a lower size, try 37 first. How to know the ideal sprocket size for you is all trial n error. Or maybe you could go to ur mech and ask them to set ur carb. Once the two things are done, i believe ur 125 can go above rpm 6 n attain a higher top speed

[fx110]

same problem that time i took the bike~

15/39, RPM stuck on 5-6.....

[Hydherrahman]

http://i240.photobucket.com/albums/ff318/Acdc_fat4life/IMG-20130503-WA0007.jpg

 

http://i240.photobucket.com/albums/ff318/Acdc_fat4life/IMG-20130503-WA0005.jpg

 

http://i240.photobucket.com/albums/ff318/Acdc_fat4life/IMG-20130503-WA0006.jpg

 

Whatsapp me @ 9eight3nine3zero6one

[abituary]

anyway i just discovered something about my bike. first 15 mins when bike on idle around 1 rpm. after travelling from pasir ris to bukit merah, i assume the bike temp increase then idle went up to near to 2 rpm. thats not normal right?

[drak3st3r]

anyway i just discovered something about my bike. first 15 mins when bike on idle around 1 rpm. after travelling from pasir ris to bukit merah, i assume the bike temp increase then idle went up to near to 2 rpm. thats not normal right?

From my knowledge. Can be as simple as a lean setting or if not crank oil seal gone.

[napshot]

any good recommendation of good workshops to service my 125z?

full servicing, block and carb.

 

hopefully, reasonable price and good mechanic

usually how much is full servicing?

 

thanks

[raihan666]

Hi bros.I'm looking for 125z standard exhaust.if anyone of u guy have spare can sell it to me?need to go inspection by this month.pls pm me aite.thanks

[firebike 11]

Hai bro n sis looking for ori 125z standard exhaust to sell or trade wit mod pipe do pm me thank

[napshot]

KNN, no choice Singapore cannot find 125z CDI, so go Ah boy buy, told him I wanted original, he says OKOK, send me to his workshop at Geylang lor 23, workshop mechanic test my bike, confirm its CDI spoil, when I'm not watching, the Malaysian mechanic quickly change my CDI.

 

I realize he had changed my CDI when I reenter the working area again, it doesn't look new. He claims its new, a recon unit, demand that I pay $50 plus a new plug.

 

I told him, my plug just changed two days back and I never told ah boy I wanted to change plug, he said my plug turn black, i told him to show me, he says dunno where he left the plug. %$%$@^

 

becareful if you use ah boy mechanic, very dishonest nowadays.

[summerdive]

have a SHARK racing bloc for sale, good condition, view to believe selling at $50 only. contact 90935246 if interested

[QuoVadis]

I dont get it. How did they know CDI is the fault?

 

KNN, no choice Singapore cannot find 125z CDI, so go Ah boy buy, told him I wanted original, he says OKOK, send me to his workshop at Geylang lor 23, workshop mechanic test my bike, confirm its CDI spoil, when I'm not watching, the Malaysian mechanic quickly change my CDI.

 

I realize he had changed my CDI when I reenter the working area again, it doesn't look new. He claims its new, a recon unit, demand that I pay $50 plus a new plug.

 

I told him, my plug just changed two days back and I never told ah boy I wanted to change plug, he said my plug turn black, i told him to show me, he says dunno where he left the plug. %$%$@^

 

becareful if you use ah boy mechanic, very dishonest nowadays.