Yamaha TRX850 Enthusiasts Forum

Anyone tried boring out the standard carbs to say 39mm?

Just a thought, Any one tried it? Quantime comes to mind lol

I`ve done it to other carbs before but surely the issue here is that the CV type are not a patch on flatslides,and to not be pestered by wearing emulsion tubes,needles and CV guides and slides?
You might find these links useful:

http://www.factorypro.com/products/Jets ... %20buy.htm

http://www.factorypro.com/tech_tuning_p ... gines.html

Of course,there`s also plenty of 39mm and 40mm CV`s kicking about bike breakers too.