Vintage Dirt Bike Q & A

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PostPosted: Tue Jun 15, 2010 12:37 am 
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Joined: Sat Dec 01, 2007 3:03 pm
Posts: 265
I have a keihin carb on my 74 mt250 I am not sure what its from or the size but it looks kinda like the ones from the rm250 from 95. It has a r1468ns needle in it right now and its a touch rich and boging at approximatly 1/4-1/2 throttle maybe a bit more. I wanted a leaner needle and was not sure how to read the numbers on them. They sell about 7 or 8 different ones for the rm125 that are similar in number to this one. Can someone tell me how to read the number so I know what a leaner number looks like?


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PostPosted: Wed Jun 16, 2010 11:56 am 
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Joined: Fri Jul 14, 2006 8:12 am
Posts: 323
Location: Wuppertal/Germany
this may help you
http://www.keihin-us.com/am/_media/pdf/pwk-pj_jetneedles.pdf

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