LiftdT4R Posted April 6, 2007 Report Share Posted April 6, 2007 Ok, I picked up a set of 28mm Keihins, and I need to jet them for my setup. It's mostly stock, but I heard these carbs will really wake it up. Pretty much my mods are PT Mids, UNI filter in the stock box with lid but no snorkel, Boyesen Reeds, +4 Timing, and that's really it. I'm at basically sea level and my temps are 50-70*. I've messed around with the stock Mikunis a lot, but I don't even know where to start on these guys. Any input would be greatly appreciated. :beer: Quote Link to comment Share on other sites More sharing options...
LiftdT4R Posted April 7, 2007 Author Report Share Posted April 7, 2007 Anybody runnin' these? Don't know where to start. Quote Link to comment Share on other sites More sharing options...
JKJK Posted April 7, 2007 Report Share Posted April 7, 2007 45-48 pilot with 160 mains jjh needles.That should be a safe place to start.Prolly end up with 150 mains+the 45 pilot. Quote Link to comment Share on other sites More sharing options...
LiftdT4R Posted April 7, 2007 Author Report Share Posted April 7, 2007 45-48 pilot with 160 mains jjh needles.That should be a safe place to start.Prolly end up with 150 mains+the 45 pilot. Cool man, thanks for the info, that's seems to be what I'm hearing around 150-160 mains. One question though, what the heck is a JJH needle? I'm not sure which Keihins they are if the are the PWKs or what, but the stock needles they came with should be fine I would think. Quote Link to comment Share on other sites More sharing options...
JKJK Posted April 7, 2007 Report Share Posted April 7, 2007 Those needles are very common for the 28 pwk series. Quote Link to comment Share on other sites More sharing options...
LiftdT4R Posted April 9, 2007 Author Report Share Posted April 9, 2007 Any other opinions? ANyone runnin' these on a mostly stock bike, I've been getting a lot of different answers. Seems like 150 main, 45 pilot? But I've had people telling me as low as a 130 main. I knew it was gonna be tough to find feedback on these guys. Quote Link to comment Share on other sites More sharing options...
sandman Posted April 10, 2007 Report Share Posted April 10, 2007 Any other opinions? ANyone runnin' these on a mostly stock bike, I've been getting a lot of different answers. Seems like 150 main, 45 pilot? But I've had people telling me as low as a 130 main. I knew it was gonna be tough to find feedback on these guys. I've ran 28mm keihn pwk's for several years now & I would agree that you're looking at 150-160 on mains. I run around a 175 but have a mild port & shaved head with trinity stage 4 pipes. As far as the needle is concerned, go with the jjh needle. I had fmf pipes before & was running a N68A needle which worked great with my previous setup however the trinity pipes did not agree with this at all. I've switched over to the jjh needle & all is well again. If your PT mids don't like the jjh needle you might try a different one like the N68A. The carbs are great, you'll love them. Quote Link to comment Share on other sites More sharing options...
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