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H2B carb questions http://www.kawi2strokes.com/forum/viewtopic.php?f=14&t=12649 |
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Author: | DGA [ Sat Apr 01, 2017 11:07 pm ] |
Post subject: | H2B carb questions |
My H2B carbs have emulsion tube 'shrouds' that are about 6mm tall, protruding into the airstream. I have a spare pair of carbs that I think are H2 or H2A, and the emulsion tube shrouds are really short, like 2mm. Is there a preference there, should I cut my tall ones down? Jetting questions, I am running expansion chambers, have done port work and smaller squish clearance. The carbs have 100 main jets in them now, what would be a good guess to start out with? Also, raise the needles a notch or two? Other question would be base ignition timing, standard or less timing? Thanks to all replies. |
Author: | Ja-Moo [ Sat Apr 01, 2017 11:15 pm ] |
Post subject: | Re: H2B carb questions |
Modding shrouds is a can of worms you do not want to open. Go up a couple of sizes on the mains, do the idle screw test for the pilot size, and raise the needles a notch to start. Leave the timing stock. |
Author: | DGA [ Sat Apr 01, 2017 11:26 pm ] |
Post subject: | Re: H2B carb questions |
Sounds good, thank you. |
Author: | Gregz [ Mon Apr 03, 2017 7:02 am ] |
Post subject: | Re: H2B carb questions |
what is the idle screw test for pilots |
Author: | mraxl [ Mon Apr 03, 2017 7:42 am ] |
Post subject: | Re: H2B carb questions |
Very early H2 had 2mm choke w/5FL14 needle. Then changed to 8mm w/5EJ15 needle.... I think there is a service bulletin on the change? Finding the correct pilot jet can be found here: http://www.kawatriple.com/manuals/carbtune/carbtune.htm |
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