Since '02 xBhp is different things to different people. From a close knit national community of bikers to India's only motorcycling lifestyle magazine and a place to make like-minded biker friends. Join us

#xBhpAxorHelmet #2

Axor
Castrol Power 1

Always wear a helmet.

Our Partners

User Tag List

Results 1 to 3 of 3

Thread: Hesitation in acceleration - Yamaha RX 135 5-speed

  1. #1
    Rookie
    Join Date
    Aug 2019
    Location
    Bangalore
    Posts
    1
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Default Hesitation in acceleration - Yamaha RX 135 5-speed

    Hello all,

    I have been experiencing a unique problem for quite some time now with my Yamaha RX 135 5-speed.

    Problem: There is a lag in acceleration as I open the throttle. It feels as though the engine is struggling to reach the speeds though it eventually does but after a lot of struggle. The bike does still reach 100-110 kmph but the initial pick up is really delayed.

    Background: The engine was completely done up 4 years back. Re-bored to 1.25 or 1.5 (not sure which one). Mostly Top Pro piston (as I was not there during the assembly), new connecting rod, new engine bearings (SKF), new air filter, new steel plates as well as friction plates, new chain sprocket (15 / 38). All other parts are stock such as carburettor , air filter, reed valves etc. (Note: no porting has been done)

    Troubleshooting: I already swapped the carb, reed valve, ignition coil with another stock Rx 135 5-speed but the problem persists. The only part I haven't checked is the stator coil.

    I would really appreciate if anybody could shed some light if they faced a similar issue and fixed it or could recommend a solution to my problem. My mechanic also has no clue as he recently opened the bore to check if it had any lines but its as good as new.

    If you need any additional information please let me know.

    Thanks!
    Last edited by xBhp; 08-28-2019 at 11:59 AM.

  2. #2
    Moderator
    Join Date
    Dec 2015
    Location
    India
    Posts
    1,994
    Mentioned
    53 Post(s)
    Tagged
    1 Thread(s)

    Default Re: Hesitation in acceleration - Yamaha RX 135 5-speed

    Thread approved.

  3. #3
    Rusted
    Join Date
    Jul 2012
    Location
    Guwahati, Bangalore
    Posts
    522
    Mentioned
    23 Post(s)
    Tagged
    0 Thread(s)

    Default Re: Hesitation in acceleration - Yamaha RX 135 5-speed

    Quote Originally Posted by 2strokehead View Post
    Hello all,

    I have been experiencing a unique problem for quite some time now with my Yamaha RX 135 5-speed.

    Problem: There is a lag in acceleration as I open the throttle. It feels as though the engine is struggling to reach the speeds though it eventually does but after a lot of struggle. The bike does still reach 100-110 kmph but the initial pick up is really delayed.

    Background: The engine was completely done up 4 years back. Re-bored to 1.25 or 1.5 (not sure which one). Mostly Top Pro piston (as I was not there during the assembly), new connecting rod, new engine bearings (SKF), new air filter, new steel plates as well as friction plates, new chain sprocket (15 / 38). All other parts are stock such as carburettor , air filter, reed valves etc. (Note: no porting has been done)

    Troubleshooting: I already swapped the carb, reed valve, ignition coil with another stock Rx 135 5-speed but the problem persists. The only part I haven't checked is the stator coil.

    I would really appreciate if anybody could shed some light if they faced a similar issue and fixed it or could recommend a solution to my problem. My mechanic also has no clue as he recently opened the bore to check if it had any lines but its as good as new.

    If you need any additional information please let me know.

    Thanks!
    1) Might be an issue with the bore and piston then and the bearings. Regarding those was the engine touched up before then?

    2) on the sproket teeth, the current one as you mentinoed is 15/38 what was the ratio before?

    3) last; bikes simply old, germlins have crept in.

Similar Threads

  1. YAMAHA RX 135 4 speed or 5 speed.
    By sajusajan in forum What Bike?
    Replies: 9
    Last Post: 08-16-2019, 11:50 PM
  2. Yamaha RX135 4 speed gearbox to 5 speed gearbox conversion
    By rinto in forum Thumpers,2-Stroke And Exotics
    Replies: 2
    Last Post: 03-21-2019, 07:49 PM
  3. Throttle hesitation
    By Saravana kumar026 in forum Help Me!
    Replies: 0
    Last Post: 09-29-2016, 08:24 PM
  4. Yamaha Rx 135 (4 - speed ) Rebuild
    By gabriel_john in forum Thumpers,2-Stroke And Exotics
    Replies: 11
    Last Post: 05-11-2012, 05:56 PM
  5. HELP:Need help for my Yamaha 5 speed..
    By arungee6 in forum Help Me!
    Replies: 9
    Last Post: 12-12-2009, 06:22 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •