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Hrc carb tray help
Posted: Wed May 11, 2011 4:47 pm
by fatkid_loves_cake
Hey folks
I have a question for people who are using carb trays on there road bikes, what sort of mods have you done to the carbs and air setup to get them running as best as possible?
I realise this has probably been done to death but not really found much via the search
and I know airflow is a big issue on these bikes just wondered if many people still used them and got a nice clean rev range with them
Re: Hrc carb tray help
Posted: Wed May 11, 2011 5:09 pm
by zebulon
i use it and despite the warnings i found here and there it works on my bike very well.
setup:
122 dynojets all around
0,5 washer
pilots 2,5 turns
full tyga system
tyga airbox with snorkel still in, will try without somewhen
Re: Hrc carb tray help
Posted: Wed May 11, 2011 5:25 pm
by fatkid_loves_cake
Cheers zeb
when u say .5 washer do you an extra washer or the standard orignal one
did you try running it with the standard airbox lid or have you always had the tyga one
Re: Hrc carb tray help
Posted: Wed May 11, 2011 8:15 pm
by zebulon
there were no washers at all, i added the 0.5, did all changes at once last winter
Re: Hrc carb tray help
Posted: Wed May 11, 2011 9:00 pm
by fatkid_loves_cake
Did you ditch the rubber flaps aswell
Re: Hrc carb tray help
Posted: Wed May 11, 2011 10:01 pm
by CMSMJ1
I have the air tray on both my bikes - all it does, really, is keep the carbs cool. it is not ram air or anything like that.
All flaps in place too..
Re: Hrc carb tray help
Posted: Thu May 12, 2011 1:32 pm
by zebulon
there are a lot of different opinions around when it comes to airflow.
I modified the airbox and have no rubber flaps and it works

Re: Hrc carb tray help
Posted: Thu May 12, 2011 3:33 pm
by fatkid_loves_cake
Cheers zeb, actually read your bike build thread last night
am suffering with a slightly poor mid range, gonna have a play with my stock needles and order some aftermarket ones to
cheers for info