<![CDATA[ypvs gears missing]]>Re: So Close!...
Hello, I have a problem with my Yamaha dt 125 r 1997. Someone ripped out all of the teeth gears in the ypvs system. I can t find the transmission on the gears. i Found that the smaller gear on the motor itself has 12 teeth and is about 12 mm. but i can t find the dimensions of the other one, any help would be great, thanks!

]]>https://dt125r.co.uk/topic/3596/ypvs-gears-missingRSS for NodeMon, 24 Aug 2026 16:26:19 GMTMon, 24 Aug 2026 13:35:31 GMT60<![CDATA[Reply to ypvs gears missing on Mon, 24 Aug 2026 13:49:49 GMT]]>Oh how annoying! I've seen this before when people have incorrectly set up the YPVS servo and stripped the teeth on the gears.

It's probably easier to just buy another YPVS servo sadly than trying to find the individual cog.
https://www.ebay.co.uk/itm/307114030022?_skw=Yamaha+DT+125+R+YPVS+servo&itmmeta=01M0T0CTAKVKYBVERW4KK9HKJQ&hash=item47816c33c6:g:QqIAAeSwkVdqdvO2&itmprp=enc%3AAQALAAABAGfYFPkwiKCW4ZNSs2u11xDV5F88zNLFmQlOj5cc4%2FxlPVfMrS0CX9zdgmCMx0exrIiMBYEnl2C70gEhZcvwr3BYq%2BewLJHyMjxf%2BATBLTUnAq5B4Os%2FAuVyeOUNpVSRYxblUNuwL%2BjqWn0F95mbpkEWkXEDU%2F4blrRDuajNXDPVd8py1aTbWsSecsyFqwFQqqWjrgMG65s52PTjh2LPZ%2FOmWbQsy4dMVcVkq6VX2lCX6cdUUBN6SMPZHm3xNkDwYsJXuOa1TCyyOEaSwcuLKfJrQwb9YP1PtVMNdQS0UqCxAXfBI4hQNMZjPJwu4V6qdKAjffzCnESPO3DSoS0%2FsfE%3D|tkp%3ABk9SR9als8CGaA

If you have access to the a 3D printer, or are capable on CAD, you might be able to 3D print a new set of teeth, setting the TPU to 100% fill should be strong enough to cope with the demand. My 3D printer is pretty darn accurate so it would probably do a fair go at it to be fair.

]]>https://dt125r.co.uk/post/33572https://dt125r.co.uk/post/33572Mon, 24 Aug 2026 13:49:49 GMT