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Thread: Yamaha YBR G not crossing 90 km/h

  1. #1
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    Default Yamaha YBR G not crossing 90 km/h

    Slaam to all @Xulfiqar, @vickytulla, @amjad635, @saboor73



    i bought YBR G model few days back

    now odometer reading is 1200 km

    i did running very carefully

    according to advice of friends i changed oil first at 250-300 then 700 and now at 1025 km with liqui moly 10w40

    i did running according to following steps


    first 200 km speed was 40 km/h

    200-500 speed 50-55 km/h

    500-800 60-65 km/h

    800-900 80km/h

    900-1025 tried to speed it up

    but not crossed 100


    speeding pattern is

    in 2nd gear 60 km/h

    3rd gear 80km/h (10000 rpm)

    4th gear 90km/h with 8000 rpm full throttle (some times 95)

    5th gear no use RPM decrease and also 5km/h speed decreases




    one thing that is teasing me that when i changed first oil a lot of metal particles were in oil and there also a "Needle" of just 1.5 inch was also present in oil


    i am very tensed what to do

    pakwheelers help me please

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  2. #21
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    Todays story

    I went to authorized dealer of Yamaha (Shafique Autoes Novelty bridge ) at 12 pm

    He was more than clever

    he took a test drive and told me that there is missing issue (at high speed feels like petrol is finished) and it needs tune up

    i said that it was tuned at 1050 km and right now its only 1270 km

    he said then you go to that mechanic who did first tune up

    unwillingly i agreed for 2nd tune up just after 220 km

    he drained Liqui moly 10w40 ( although i put that in my CD 70) and put yamaha lube 20w50


    performed tune up and took test drive but no use

    finally he announced his verdict that its RPM issue engine is not giving full RPM and CDI unit needs to be replaced by one used in DYL Janoon.

    after changing the CDI unit i took a long test drive nearly 10 km but same results along with missing issue

    he then performed some fuel adjustments and set tappet (now a little sound from engine) again test drive and he came and said that it went to 105 km in 4th gear

    and on long route it will give 110-115km in 5th gear

    Now questions are

    Janoon CDI uni may cause damage to engine?

    should i go for Irridium plug ?

    will irridium plug enhance performance and top speed?

    i also told yamaha (on their facebook page) same story today evening but no reply yet.

    what should i do

    kindly suggest me

  3. #22
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    Default

    Quote Originally Posted by feeziali View Post
    in my opinion 10 w 40 is very Thick oil , try to use 5 w 30 full synthetic oil ,it will improve speed
    Why not 0W20
    Your ego is writing cheques, your body can't cash.

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    i dont know what is the reason behind to go at 120 or 130km/h on a 125cc bike which is economy bike by all means @OP in how many situations you get to drive 80km/h + in pakistan? you race your bike with cars or what?
    Your ego is writing cheques, your body can't cash.

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    Quote Originally Posted by aliarshad26 View Post
    Todays story

    I went to authorized dealer of Yamaha (Shafique Autoes Novelty bridge ) at 12 pm

    He was more than clever

    he took a test drive and told me that there is missing issue (at high speed feels like petrol is finished) and it needs tune up

    i said that it was tuned at 1050 km and right now its only 1270 km

    he said then you go to that mechanic who did first tune up

    unwillingly i agreed for 2nd tune up just after 220 km

    he drained Liqui moly 10w40 ( although i put that in my CD 70) and put yamaha lube 20w50


    performed tune up and took test drive but no use

    finally he announced his verdict that its RPM issue engine is not giving full RPM and CDI unit needs to be replaced by one used in DYL Janoon.

    after changing the CDI unit i took a long test drive nearly 10 km but same results along with missing issue

    he then performed some fuel adjustments and set tappet (now a little sound from engine) again test drive and he came and said that it went to 105 km in 4th gear

    and on long route it will give 110-115km in 5th gear

    Now questions are

    Janoon CDI uni may cause damage to engine?

    should i go for Irridium plug ?

    will irridium plug enhance performance and top speed?

    i also told yamaha (on their facebook page) same story today evening but no reply yet.

    what should i do

    kindly suggest me
    Only thing cdi can damage is spark plug that to if gap of spark plug is to small is junoon cdi bigger than ybr ? I remember I installed cg125 cdi in my junoon as it was bigger it possible that Yamaha itself restricted performance of ybr for some reason and don't except iridium spark to enhance performance iridium are long life plug and u would only want them in a engine with more than one cylinder running waste spark with one coil firring a pair of cylinder

  6. #25
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    Quote Originally Posted by ahmedraja1996 View Post
    i dont know what is the reason behind to go at 120 or 130km/h on a 125cc bike which is economy bike by all means @OP in how many situations you get to drive 80km/h + in pakistan? you race your bike with cars or what?
    Bro ther i am a kind of moderate guy

    i dont drive hard and very rarely cross 80km /h but bike should be capable of that (110-120)

    and for racing with cars i have a car

    when 102900 rupees bike runs at 120km why not 132400 rupees bike ?

    when a Honda 125 overtakes, there starts irritation in hands (hath mein kharish honey lag jati hy (only on empty roads )

  7. #26
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    Quote Originally Posted by saboor73 View Post

    don't except iridium spark to enhance performance iridium are long life plug and u would only want them in a engine with more than one cylinder running waste spark with one coil firring a pair of cylinder
    Brother yes its bigger than YBR CDI uni

    and i did not get your last line

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    Quote Originally Posted by aliarshad26 View Post
    Brother yes its bigger than YBR CDI uni and i did not get your last line
    In short iridium plug doesn't not improve performamce

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    Ali arshad y dont u ask other ybr owners about top speed of bike?

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    Quote Originally Posted by MONOO View Post
    Ali arshad y dont u ask other ybr owners about top speed of bike?

    Every one claims more than 110 km

    no one claimed even 100

    i asked 4, 5 owners

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    Let me complete running of my bike. I ll give u a complete review.

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    Have u checked speed with gps?

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    Quote Originally Posted by MONOO View Post
    Have u checked speed with gps?

    gps shows 5 km less then meter

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    Quote Originally Posted by ahmedraja1996 View Post
    Why not 0W20
    Ahmed ,you are right , But i think ,no need to give him suggestions ,as he is already very busy in changing parts ,Plugs ,blah blah !

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    Asalamulikum bhai ALLAH app ko hamisha hamisha khush rakhi or bhai fast chalane ke kiya hoga ga aram se chala liya karo ye airoplan nahi f16 zameen par chalane ke liya bana hai hawa main orne k liya nahi bana bhai khayal raka karo ALLAH na khuwasta app ko kuch ho jaye to app k ghar walo k dil par kiya guzry ge agar phir b shok hai app ka fast chalane ka to f16 ya koi or jahaz le lo woo hawa main chala lena

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    Quote Originally Posted by tashfen143 View Post
    Asalamulikum bhai ALLAH app ko hamisha hamisha khush rakhi or bhai fast chalane ke kiya hoga ga aram se chala liya karo ye airoplan nahi f16 zameen par chalane ke liya bana hai hawa main orne k liya nahi bana bhai khayal raka karo ALLAH na khuwasta app ko kuch ho jaye to app k ghar walo k dil par kiya guzry ge agar phir b shok hai app ka fast chalane ka to f16 ya koi or jahaz le lo woo hawa main chala lena
    @tashfen143

    My brother i think you did not read my previous comments

    i earlier said that i always drive bike on 50-70 km normally

    but when on long route, empty carpet road of width 70-80 feet (one side ) one should try high speed

    however however i always drive on normal speeds

    but bike kabhi to speed par jai my point is that i am not Rocket type of driver

    By the way thanks for care

    i would act upon it In Shaa Allah

  17. #36
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    Quote Originally Posted by feeziali View Post
    Ahmed ,you are right , But i think ,no need to give him suggestions ,as he is already very busy in changing parts ,Plugs ,blah blah !
    @feeziali

    when a man (with very little technical knowledge) is caught in Trap of mechanics, then he even agrees to overhaul his engine just after 2000

    km ( i read in one thread few months back here )

    mechanics are Gorakh Dhanda (kabhi na samjh aney wala

    i started this thread for consultation from you brothers to avoid mechanics not for the purpose that you

    gentlemen start taunting me

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    Start searching a good mechanic bro.yamaha trained mechanic

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    Quote Originally Posted by MONOO View Post
    Start searching a good mechanic bro.yamaha trained mechanic


    Very Very disappointed with mechanics

    thinking of selling the bike

    Really embarrassed

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    Its too early to decide. Give bike some time.

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    Do u feel any vibration at 90kmph?

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