<![CDATA[Standard jet size]]>What is the standard carb siede for a Yamaha dt 125 R?

]]>https://dt125r.co.uk/topic/2124/standard-jet-sizeRSS for NodeWed, 15 Jul 2026 23:16:08 GMTSat, 01 Feb 2020 00:28:11 GMT60<![CDATA[Reply to Standard jet size on Sun, 02 Feb 2020 18:18:01 GMT]]>@Glynn123 oh ok. That makes more sence.do you know what the differnece is? I am now running 146 main jet in a koso 32mm carb, but when i rev it at max it wont go over 8k in rpm.

]]>https://dt125r.co.uk/post/22400https://dt125r.co.uk/post/22400Sun, 02 Feb 2020 18:18:01 GMT<![CDATA[Reply to Standard jet size on Sun, 02 Feb 2020 17:50:05 GMT]]>@Haako-Smith Mikuni jet sizes differ to Keihn etc and flow differently, 210-240 main jet is correct on the standard flat slide 28mm

]]>https://dt125r.co.uk/post/22399https://dt125r.co.uk/post/22399Sun, 02 Feb 2020 17:50:05 GMT<![CDATA[Reply to Standard jet size on Sun, 02 Feb 2020 17:21:09 GMT]]>@Calum Are you sure it uses 210 for original 28mm carb. IT seems a bit high dont IT?

]]>https://dt125r.co.uk/post/22398https://dt125r.co.uk/post/22398Sun, 02 Feb 2020 17:21:09 GMT<![CDATA[Reply to Standard jet size on Sat, 01 Feb 2020 11:01:42 GMT]]>For the newer bikes it uses a 210 main jet. Or a 240 for the slightly older flat slide models.

]]>https://dt125r.co.uk/post/22396https://dt125r.co.uk/post/22396Sat, 01 Feb 2020 11:01:42 GMT