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serious problem with my RX100-need help

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  • #16
    Originally posted by akshayhgd View Post
    dude, Apart from boring and piston change nothing has altered everything else is in stock condition. but he changed my carb setting and float valve and struggled to fix the settings in Bangalore.

    because of these problem (of mech) i had taken my bike way back to my native and there my native mech told me that 2 holes were missing in shogun piston (he fixed it )and due to the play in connecting rod he changed it too and there was heavy leakage in carb so he changed the jet needle. after that bike was quite ok so i came back after running around 2k km i had given it for service, so all started again now. one disadvantage is i dont have much knowledge in mechanism of Rx
    (
    Interesting... now that additional details are coming out from you it is infact validating what I said earlier... what you mention as 2 holes missing in the shogun piston are in fact port windows that every reed block induction piston will have... the Shogun piston did not have them as the bike has a crankcase reed induction... where the RX has a torque induction port and a reed block, the Shogun has a transfer port and since the reed block is inducting directly into the crankcase it does not require port windows that are present in the RX piston...
    Only a biker knows why a dog sticks his head out of a car window.

    Multum in Parvo - Much in Little

    "Yes, it is FAST! No, you CAN'T ride it!" - http://www.xbhp.com/talkies/general-...a-300-san.html

    Comment

    • #17
      oh.. that is why he fixed it by making a replica of rx piston but that time also it was not crossing 98kmph but i was happy that aleast its crossing 60kmph.
      now also i can push it to 100 but as i said earlier i feel a pain in bike.

      Comment

      • #18
        Buzz the right people

        I understand ur trouble and the concerns u have...there are quite a few experts available here...buzz / pm them and you would get a right solution.

        aargee - Chennai
        sriramefunds - Chennai
        Yamdoot - Mumbai
        sixspeedtwin
        praful - Bangalore
        Karthikdattag


        Guys - Have taken your names without your permission...pls dont mind

        Even if they are not able to help you, you might get to know the right mechanic in Bangalore for you RX.
        Never Give up on something that you can't go a day without thinking about.

        Cheers
        Ramesh Madhavan

        Comment

        • #19
          Originally posted by akshayhgd View Post
          oh.. that is why he fixed it by making a replica of rx piston but that time also it was not crossing 98kmph but i was happy that aleast its crossing 60kmph.
          now also i can push it to 100 but as i said earlier i feel a pain in bike.
          Like I mentioned before, it is not so simple and there lot many things to consider... your best option is to go back to stock RX cylinder and piston... I have been working on 2 strokes for more than 20 years now... my advice... please read on the same...

          Since you are looking for more power... here is a very simple way to increase the power of your bike from 11bhp to 12bhp... with the stock cylinder and piston in place just replace the stock carburetor i.e. VM20SS with the one available on the RX135 i.e. VM22SS... that itself should give you 1bhp addition...
          Only a biker knows why a dog sticks his head out of a car window.

          Multum in Parvo - Much in Little

          "Yes, it is FAST! No, you CAN'T ride it!" - http://www.xbhp.com/talkies/general-...a-300-san.html

          Comment

          • #20
            Originally posted by rameshmadhavan View Post
            I understand ur trouble and the concerns u have...there are quite a few experts available here...buzz / pm them and you would get a right solution.

            aargee - Chennai
            sriramefunds - Chennai
            Yamdoot - Mumbai
            sixspeedtwin
            praful - Bangalore
            Karthikdattag


            Guys - Have taken your names without your permission...pls dont mind

            Even if they are not able to help you, you might get to know the right mechanic in Bangalore for you RX.
            thanks rameshmadhavan, i will PM them.

            Comment

            • #21
              @akshay.. after reading your querries and the whole story bout the Shogun piston etc.. You have to accept the bitter truth.. the mech f**ked up the engine. There is no way a Shogun piston can be fitted unless you make changes to it like Abhimanyu pointed out. There are no intake port holes on the Shogun piston like on the RX which is a main difference besides deck height etc.. You need to show the bike to some one whos a local and knowledgeable from the forum Im sure there are a lot of such guys from Bangy on the forum.
              P.S- If the cylinder height has not been machined, you still have a chance to use a RX115 piston. But id advice you to save on some bucks and go for a full rebuild.
              1985 Yamaha RD350 HT
              1989 Ki-Honda 110
              1994 Suzuki Shogun
              1997 Yamaha RX135
              2008 Yamaha FZ
              Suzuki Supra Powerup
              IND-SUZUKI AX100
              Hero IMPULSE
              TVS NTORQ


              No Cams, No Valves, No Headaches.

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              • #22
                I don't have to add anything as Satish & Abhi have already stated what the issue is all about & how to go on to fix it. IMO, just follow what is being told; changing the cylinder is all what you should be doing it now.

                Mine is 135's cylinder & the speeds are as follows...
                1st - 35
                2nd - 70
                3rd - 85
                4th - 95
                5th - 110
                Skill is what keeps you on a Motorcycle
                Awareness + Skill is what keeps you out of harm's way
                ATGATT + Awareness + Skill means you might Live To Ride another day

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                • #23
                  Originally posted by yamdoot View Post
                  @akshay.. after reading your querries and the whole story bout the Shogun piston etc.. You have to accept the bitter truth.. the mech f**ked up the engine. There is no way a Shogun piston can be fitted unless you make changes to it like Abhimanyu pointed out. There are no intake port holes on the Shogun piston like on the RX which is a main difference besides deck height etc.. You need to show the bike to some one whos a local and knowledgeable from the forum Im sure there are a lot of such guys from Bangy on the forum.
                  P.S- If the cylinder height has not been machined, you still have a chance to use a RX115 piston. But id advice you to save on some bucks and go for a full rebuild.
                  @yamdoot, yes he has, but as i said earlier i have seen some bikes and hear that there are some Rx which they have converted with shogun piston and they are very well satisfied than Rx original power. about fitting 115 piston i feel again i have go for bore and piston change(will i get the piston in india?) but my present cylinder is mad it short to fit the shogun piston in that case will that work?

                  any good mech you would like to suggest in bagalore?

                  Comment

                  • #24
                    Originally posted by akshayhgd View Post
                    @yamdoot, yes he has, but as i said earlier i have seen some bikes and hear that there are some Rx which they have converted with shogun piston and they are very well satisfied than Rx original power. about fitting 115 piston i feel again i have go for bore and piston change(will i get the piston in india?) but my present cylinder is mad it short to fit the shogun piston in that case will that work?

                    any good mech you would like to suggest in bagalore?
                    Dude you need to get over the Shogun piston issue and start saving some money and get bike rebuilt (as suggested by abhimanyu31 & Yamdoot)

                    No 'jugaad' will help at the moment.
                    Flying at the speed of Life!

                    My Garage:

                    1989 - Yamaha RX 100 (Sold)
                    2004 - Hero Honda CBZ Star (Sold)
                    2011 - Yamaha R 15
                    2013 - Hero Impulse
                    2013 - KTM 390 Duke
                    2015 - Wait for it...

                    WheelsGuru


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                    • #25
                      Originally posted by akshayhgd View Post
                      dude, Apart from boring and piston change nothing has altered everything else is in stock condition.....

                      ....but my present cylinder is mad it short to fit the shogun piston in that case will that work?....
                      My friend... I asked you what other changes have been made and you say with emphatic conviction that apart from the boring and piston change nothing has been altered...

                      then in another post you say that your present cylinder is made 'short' to fit the shogun piston...

                      Do you understand the implications of these changes? Engines are designed and made on scientific basis and principles, in short there is a science involved... not the whims and fancy of a road side mechanic... there is no way that anyone can help you apart from the advice already given... the sooner you accept it the better off you are...
                      Only a biker knows why a dog sticks his head out of a car window.

                      Multum in Parvo - Much in Little

                      "Yes, it is FAST! No, you CAN'T ride it!" - http://www.xbhp.com/talkies/general-...a-300-san.html

                      Comment

                      • #26
                        Originally posted by akshayhgd View Post
                        @
                        one more thing is one of the mech in my native place has done the same thing (110cc shogun piston with short bore) which has got surprising power and speed. but he is 600km away..
                        "Short Bore"?

                        Heard of Short Stroke. Never heard of Short Bore.
                        02 Qualis GS
                        03 Zen Carbon
                        62 Jawa 353 "Tank Switch"
                        83 RD350 HT
                        87 Yezdi 350 Twin
                        99 Yamaha YBX
                        03 RXZ 5-speed
                        08 Suzuki Access
                        None Sold!!! All in the Stable

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                        • #27
                          Originally posted by sixspeedtwin View Post
                          "Short Bore"?

                          Heard of Short Stroke. Never heard of Short Bore.
                          What he most probably means is a short stroke... he mentions in one of the post that the connecting rod has been changed... I don't think he realizes the number of changes made and the gravity of their effect on the engine... it is very likely that the stroke has been reduced and the cylinder has been machined to decrease the overall length of the cylinder... it is clear from reading between the lines that the engine is showing massive signs of detonation and its a matter of time before it fails....
                          Only a biker knows why a dog sticks his head out of a car window.

                          Multum in Parvo - Much in Little

                          "Yes, it is FAST! No, you CAN'T ride it!" - http://www.xbhp.com/talkies/general-...a-300-san.html

                          Comment

                          • #28
                            Originally posted by abhimanyu31 View Post
                            What he most probably means is a short stroke... he mentions in one of the post that the connecting rod has been changed... I don't think he realizes the number of changes made and the gravity of their effect on the engine... it is very likely that the stroke has been reduced and the cylinder has been machined to decrease the overall length of the cylinder... it is clear from reading between the lines that the engine is showing massive signs of detonation and its a matter of time before it fails....

                            guys.. guys... i admit that i have a very little knowledge in bikes and machines. what ever i have wrote here is what all mech told me im just recollecting it.. i know that who ever touched my bike all f**ked it. that the reason i came here to ask your opinion as i should not be the victim for the second time.

                            Comment

                            • #29
                              Originally posted by akshayhgd View Post
                              @Abhimanyu, both mech are different my native guy is 'the expert' in Yamaha but problem is i cant take my bike there nor he can come. is there any other way to repair it at least for temporarily?

                              guys one of your RX family member is seriously suffering and no body is showing any interest to respond it. please give your thoughts.
                              though i don't have technical knowledge but as stated by others theres some technical difference between gun and RX.Either you take your bike to ur native place or get a CP kit from either Yamaha(that is near to imopssible to find)or get a diamond kit for Rx100

                              Comment

                              • #30
                                Originally posted by 2stroker View Post
                                though i don't have technical knowledge but as stated by others theres some technical difference between gun and RX.Either you take your bike to ur native place or get a CP kit from either Yamaha(that is near to imopssible to find)or get a diamond kit for Rx100

                                CP kit? Diamond kit? what dose that mean? will those help?

                                but, 2stroker i am sure that there are many guys who used their RX100 with shogun piston for more power and pick up.

                                Good news is i my self gained some knowledge and started repairing my Rx100 so after some settings in carb and clutch bike has gained good pick up and acceleration also im getting 30~32kmpl.

                                bad news is same vibration at 60 and some extra sound from magnet(i guess) as well as from engine.

                                Comment

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