Need a bit of carb guidance. - Page 2 - Triumph Forum: Triumph Rat Motorcycle Forums
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post #11 of 13 (permalink) Old 11-16-2012, 06:52 PM
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I'm not surprised it was running rough with 45 pilots and 3.5 turns !!!
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post #12 of 13 (permalink) Old 11-16-2012, 07:07 PM
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Yeah, that was for a very, very brief period of time. I think I had the 45s in for all of about 15 miles. Just long enough for one test ride and the bike to get hot. The bike would feel like it was drowning in it's own vomit when getting on the throttle from a stop. Iíve since put the bike back at 42 pilot with mixture screws 2.0 turns out. Thatís helped a lot on throttle response from a stop. Now I just need to figure out the occasional hiccup. Like I said, hopefully the mixture screw rebuild kit will help as Iíve heard the gas we run can deteriorate the rubber ďoĒ rings.

I also found my header pipe on the right side not tightened to spec. Triumph service manual states it should be tightened to 18 nm, my torque wrench had it at about 10 nm. Only being able to get to the bottom bolt without removing the oil cooler, I tightened that as well. But I can only imagine the top bolts probably needing adjustment as well. Kind of curious if this could be part of the issue with the hiccup as well. Thoughts?

2014 Scrambler: Arrow 2-1 high pipe. TTP Tune 4 with Breathe airbox cover no baffle.
Past rides:2008 T100, 1975 Honda CB400/4, 1989 Honda GB500, 1965 Honda CB450 Black Bomber, 1972 BSA A75 Rocket3
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post #13 of 13 (permalink) Old 11-16-2012, 07:27 PM
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Yes, that could be the problem, or at least part of it.
42 pilots need less turns out on the mixture screws than 40s and they also change things with the mains.
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