Jump to content
  • Sign up now

    Registration is quick and easy 

aprilia rs 50 wont rev above 8k

Guest trogs109

Recommended Posts

hi everyone

new on here but thought someone may be able to help, problem is my sons 2003 aprilia rs50 wont seem to rev above 8-9 k, can force it to by going up a gear then to 8k an down again but wont seem to go past it normally.

This was with a normal exhaust and arrow end can, changed back to original can an its doing it again. The needle just seems to jump around between 8-9k revs and I have no ideas.

thanks for any advice as its really appreciated and thanks for looking


Link to comment
Share on other sites

  • 2 months later...

If the bike will pull about 45mph or more, then it's derestricted (by the sounds of it) fully. Some bikes (including one I know if (Gilera DNA 50)) will only rev to about 8.5k on the flat, but you may be able to make them run higher when giving it the beans down a hill. If it's doing this then it's just simply running out of power, and cant rev higher. Hope this helps.

Link to comment
Share on other sites

Due to it being an rs, and geared, i believe the restriction is in the cdi, which stops it going over 8k. You have to check if the bridge in the cdi is intact or not. You get to it through the back of the cdi, where its filled in with what appears to be black silicone sealant. Thats what my rs125 is like anyway, and I believe the 50 is pretty much the same.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Create New...

Important Information

Terms of Use Privacy Policy Guidelines We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.