Fre530d Posted November 6, 2008 Report Share Posted November 6, 2008 Hello Guys, It's been a long time since ive been here but i'm going to dedicate some more time to my banshee again. I want to buy some Keihin 35 PWK carbs to get some more power out of my banshee. I have dune ported cylinders from FAST , 20cc domes, v-force 3 reeds and Trinity stage IV pipes, I run 98 octane fuel. I run a 360 main and a 27.5 pilot right now with stock carbs and it runs great. What jets must I definitly have to fine tune those 35 PWK carbs to my mods? Another question, I also want to buy a +4mm stroker CUB cylinder, what jets do i need for this one for the 35PWK carbs? With regards and thx. Fred Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted November 6, 2008 Report Share Posted November 6, 2008 start with 162 mains and 48 pilot, needle in the middle. i would work down from there. youll probably end up at 160 main and 45 pilot im guessing. in my experiences most of the PWK carbs all jet about the same way. as far as the cub, my 4mm and 10mm cub motors ran with 39mm PWK have always been in that same range. if you want a second opinion, why dont you just call Jeff and ask him? Quote Link to comment Share on other sites More sharing options...
Fre530d Posted November 6, 2008 Author Report Share Posted November 6, 2008 Thx for the answer. I have got another question : If i want a cub setup, and don't want to work on my engines cases and want good reliability. What's the best setup for me? Stock stroke , +4mm stroke, or +4mm stroke long rod or somthing bigger perhaps? What are the posibilities for a cub setup? What's the advantage from a long rod or +4mm , can someone explain this to me pls? THx in advance. Quote Link to comment Share on other sites More sharing options...
desertdeweller Posted November 6, 2008 Report Share Posted November 6, 2008 a long rod doesn`t increase displacement a 4 mil crank will. long rods reduce side loading on the pistons which reduces friction. longer rods also increase dwell time at tdc slightly so the combustion charge has more effect on the piston. but you will get more power from a 4 mil crank than you would just going to a longer rod Quote Link to comment Share on other sites More sharing options...
Fre530d Posted November 6, 2008 Author Report Share Posted November 6, 2008 Thx, is it possible to buy a +4mm crank with long rod , do you also have to buy a special +4mm long rod version cub cyl or is it the same ? Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted November 6, 2008 Report Share Posted November 6, 2008 4 mil cub cyls are all the same they use a 115 (long) rod which is what your 4 mil cranks mostly come with. Quote Link to comment Share on other sites More sharing options...
Fre530d Posted November 28, 2008 Author Report Share Posted November 28, 2008 Hello I have received my carbs today but I have noticed that i have a choke pulley on both carbs. Is it necesarry to pull them both ? I also bought a billet intake from Jeff with built in choke tube. Thx Fred Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted November 30, 2008 Report Share Posted November 30, 2008 i usually pull them both, esp when cold. its a good idea to choke them both for the extra lube in each cylinder upon cold starting. Quote Link to comment Share on other sites More sharing options...
Fre530d Posted November 30, 2008 Author Report Share Posted November 30, 2008 i usually pull them both, esp when cold. its a good idea to choke them both for the extra lube in each cylinder upon cold starting. Will do that thx Quote Link to comment Share on other sites More sharing options...
FASTOYS Posted December 1, 2008 Report Share Posted December 1, 2008 Sounds like your all fixed up Fred. Glad the package made it safe to Belgium. Just holler at me if you have any questions!! Quote Link to comment Share on other sites More sharing options...
Fre530d Posted December 2, 2008 Author Report Share Posted December 2, 2008 Sounds like your all fixed up Fred. Glad the package made it safe to Belgium. Just holler at me if you have any questions!! Yeah the package made it safely to Belgium, thx for the well packaging ! I have a question, i installed the carbs PWK35, the billet intake from FAST today , after I synced the carbs i wanted to put my PODS on but it I cant get them on. They hit the airbox support round pieces and i am unable to get them on. What can I do about it , thx ? Do I have to cut those with a grinder? Fred Quote Link to comment Share on other sites More sharing options...
98_shee Posted December 2, 2008 Report Share Posted December 2, 2008 I cut mine off, they will rub hole's in your filters. Quote Link to comment Share on other sites More sharing options...
FASTOYS Posted December 2, 2008 Report Share Posted December 2, 2008 Yes , grind/cut them off or if you must keep them try turning the filters one way or the other. Quote Link to comment Share on other sites More sharing options...
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