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Differences & Similarities between 135cc RX series

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  • rkboy
    replied
    Interesting.I've never seen a RX Tiger before.Does this model have explicit 'TIGER' monograms or is it just RX135?

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  • jd666
    replied
    ^^ not really. 5S was till 2004 only iirc. the last year they sold some funny Tiger model which had crux meters, crux indicators, and engine covers of the 5Speed, but was a 4 speed inside ( 12.5bhp + 4 speed gearbox ).

    This is what makes the 5S so rare ( 14.5bhp and 5 gears )

    Leave a comment:


  • rkboy
    replied
    So when they stopped production due to the ban,4S and 5S were available simultaneously?
    Really sorry but i'm new to RXs

    Leave a comment:


  • aargee
    replied
    Originally posted by jd666 View Post
    ^^ some of the last gen ones did iirc ( 2004 05 )
    Yes they did; one such rare piece is what my Uncle presented to my cousin a month ago.

    Leave a comment:


  • jd666
    replied
    ^^ some of the last gen ones did iirc ( 2004 05 )

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  • rkboy
    replied
    Did some models of 4S also come with cat con silencer?
    Any other cosmetic difference between RX135 4S and 5S?

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  • karthikdattag
    replied
    Originally posted by rkboy View Post
    Rx 135 5 speed has same VM22 carb as 4s(with different jet size)?
    I saw ucal website which says 4S has VM22 where as 5S has VM20.
    How can 14bhp be generated using smaller carb?upjetted version of rx100?
    Is this true or is the website info wrong?
    Originally posted by aargee View Post
    Can you post the source of the information pls?

    Here is the link,



    I had my doubts on this one, as the 5-speed carb looks smaller compared to 4-speed carb. As to why the company has gone for a smaller carb for a higher BHP bike, that only Yamaha knows the answer. Also IMO, the carb sizes matters based on Port timing & the design (Especially transfer ports) as well. The 5-speed barrel design is completely different as compared to 4-speed.

    It is very difficult to point out as nothing is written inside, but for VM24 & VM26, the numbers are punched inside.

    Another thing worthy of making a note is, the RX-K which makes around 18BHP & the RX-Z 6-Speed which makes 20-21BHP both use VM26, so BHP has not too much affect on Carb sizes in the above cases atleast.

    @ Doc, if you have any info on the above topic kindly share.

    Thanks.

    Leave a comment:


  • aargee
    replied
    Originally posted by rkboy View Post
    Is this true or is the website info wrong?
    Can you post the source of the information pls?

    Leave a comment:


  • rkboy
    replied
    Rx 135 5 speed has same VM22 carb as 4s(with different jet size)?
    I saw ucal website which says 4S has VM22 where as 5S has VM20.
    How can 14bhp be generated using smaller carb?upjetted version of rx100?
    Is this true or is the website info wrong?

    Leave a comment:


  • aargee
    replied
    Ok, then how about the jet changes & interchange of carbs between 4S & 5S?

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  • yamdoot
    replied
    Originally posted by aargee View Post
    Sry, I understood nothing
    The RX100 has a smaller carb so theres no point using it on a 135, isnt it?

    Leave a comment:


  • aargee
    replied
    Originally posted by yamdoot View Post
    RX100 carb is 20mm thats why.
    Sry, I understood nothing

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  • yamdoot
    replied
    RX100 carb is 20mm thats why.

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  • aargee
    replied
    Guys, have a question on carb
    1. What would be venturi size difference between 100, 135 4S & 5S?
    2. Can I simply take a 100's carb, plonk the 165 MJ & 17.5 PJ & fit it directly on a 4S? Like wise, can I take the appropriate jets for 100 or 135 5S & get them fixed across?

    Any input is appreciated.

    Leave a comment:


  • aargee
    replied
    Originally posted by karthikdattag View Post
    I am afraid, these are not the original ones.
    Uh!!! oh!!!

    Leave a comment:

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