Results 1 to 6 of 6

Thread: Aprilia Leonardo 125 Speed Gradually Decreasing

  1. #1
    apriliaforum newb
    Join Date
    Mar 2019
    Location
    Lithuania
    Posts
    5

    Aprilia Leonardo 125 Speed Gradually Decreasing

    My Aprilia Leonardo 125 speed keeps gradually decreasing. It seems that sometimes for some reason it rapidly decreases. Acceleration keeps the same. It used to go 130 km/h, then it was unused for few years and speed was 80 km/h. This day it went 65 km/h and after few hours it's like only 50 km/h.

    What could it be? Is it something wrong with variator belt?

  2. #2
    apriliaforum Member
    Join Date
    Aug 2017
    Location
    Napa CA
    Posts
    133
    Maybe look for vaccuum leaks. turn the engine on and spray some type of aerosol acellerant around rubber seals. I fthe engien spped up or dies when you spray an are you have a leak. Maybe time for a head gasket, valve check. Maybe your rollers arent moving out as they are supposed to.
    2016 Piaggio BV 350
    2008 Yamaha WR 250

  3. #3
    apriliaforum expert
    Join Date
    Jun 2013
    Location
    croatia
    Posts
    2,434
    when was the last time you did a full service on the bike?
    Its probably time to do it.

  4. #4
    apriliaforum newb
    Join Date
    Mar 2019
    Location
    Lithuania
    Posts
    5
    Well, I figured out that it was mostly because of bad air intake. I poorly cleaned up air filter, and now it's a lot better. I tried going without air filter to see if it was the major problem but at higher RPM it just wouldn't go, so I tried to make fuel mix richer by calibrating the carb but it didn't work. I guess I'll have to clean up the carb as well.

    Of course, I haven't made a full service on this bike for a lot of years already and some most of the parts might be worn out but still it is not daily used, it went only ~500 km in 2 years.

  5. #5
    apriliaforum expert
    Join Date
    Jun 2008
    Location
    RDU/ North Carolina 919 892-0363
    Posts
    6,387
    no use is the worse kind of thing my BEO starts everyday period even in snow n rain . few blocks in neighborhood to warm it ..

  6. #6
    apriliaforum expert
    Join Date
    Jun 2008
    Location
    RDU/ North Carolina 919 892-0363
    Posts
    6,387
    no use is the worse kind of thing my BEO starts everyday period even in snow n rain . few blocks in neighborhood to warm it ..I WAS WITH OUT A beo A FEW YEARS never aGAIN..

Similar Threads

  1. Aprilia Leonardo 125 Light selector switch
    By LIOLIKAS in forum Other Aprilia Models
    Replies: 1
    Last Post: 03-09-2019, 07:12 AM
  2. Leonardo 125 speed restricted?
    By Rider1991 in forum Other Aprilia Models
    Replies: 0
    Last Post: 01-23-2017, 06:29 PM
  3. Aprilia Leonardo 125 - need some service tips
    By HTA in forum Aprilia and Piaggio 150cc-350cc
    Replies: 1
    Last Post: 09-04-2016, 05:24 PM
  4. aprilia leonardo 125
    By shorty08 in forum Scarabeo 50, SR50, Mojito 50, Rally, Fly 50
    Replies: 0
    Last Post: 03-19-2012, 11:05 AM
  5. For Sale - rs 125 aprilia engine... 6 speed, rotax 122, 2 stroke
    By spiderwebb in forum Aprilia Motorcycles and Scooters for Sale / Wanted
    Replies: 5
    Last Post: 09-08-2010, 05:51 PM

Posting Permissions

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