paul_m Posted July 18, 2013 Report Share Posted July 18, 2013 which carb should my 2003 315r have as standard fitted? it has a kehine PWK fitted, serial no. 73RA2 NDR is this correct? ive been reading about a different model fitted and wondered if this was an up/down grade. cheers, paul Quote Link to comment Share on other sites More sharing options...
highscore Posted July 18, 2013 Report Share Posted July 18, 2013 Standard carb is a Dellorto PHBL, dunno if the Keihin is an improvement or not. I'm pretty happy with the standard one myself. Quote Link to comment Share on other sites More sharing options...
paul_m Posted July 18, 2013 Author Report Share Posted July 18, 2013 its looking like a pwk 28 just been looking at splatshop Quote Link to comment Share on other sites More sharing options...
barnesy Posted July 19, 2013 Report Share Posted July 19, 2013 Hi My 04 has a keihin fitted and it is considered an upgrade, though as the bike had it fitted when I got it I dont know what difference it makes over standard. Makes more top end (in theory) I believe 28 mm bore as oppose to 26mm. The big guns 300cc bikes have em fitted so I think you need the cc to get the best out of em. Mine runs fine though with the keihin Ta B Quote Link to comment Share on other sites More sharing options...
chuck4788 Posted July 19, 2013 Report Share Posted July 19, 2013 Here is the answer on Keihin vs Dellorto. http://www.trialscentral.com/forums/topic/34754-phbl-versus-vhst-carb/page__st__15#entry261918 As many others, my motto is still "the PHBL is still the best $15 carb ever produced". It just works like a AK47! IMO Keihin and Mikuni make the best small engine carbs in the world. The Dellorto problem is poor mixture control at part throttle and the Keihin is much better. Some have had good luck fine tuning the Dellorto and others prefer the Keihin. I have a PWK ready to go on my 315R but I'm still fussin with the air boot, I would like a larger air boot than the Montesa unit. So a question; What air boot solution and/or carb adapter are you using on the 315R with a Keihin PWK carb? Quote Link to comment Share on other sites More sharing options...
paul_m Posted July 22, 2013 Author Report Share Posted July 22, 2013 well mine was on the bike when i got it. but had a major strip down and clean the other week (thats how i found it). i have no adapters on. it was a pain in the ar$e to get together again, but its there and seems to run fine, although not ridden properly due to work. Quote Link to comment Share on other sites More sharing options...
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