2 into 1 problems

[craptorkiller]

just installed a cascade innovations 2 into 1 manifold and a 39pwk. it idles fine. but when i hit the gas it doesnt want to rev and it boggs down. mods are t5s, boysen pro reeds, cool-head, ported jugs. im clueless as to what is causing this. thanks in advance for help.

[shogs]

Could it be that you have it jetted too rich? I would think that would be the problem.

[craptorkiller]

Could it be that you have it jetted too rich? I would think that would be the problem.

 

would it cause it to do that?

[#1banshee]

thats a huge carb for little upgrades no? I think a 35mm would of been better.

[craptorkiller]

thats a huge carb for little upgrades no? I think a 35mm would of been better.

 

+4 timing, 17cc domes, weisco pistons. i got a killer deal on the carb so i couldnt pass it up.

[#1banshee]

+4 timing, 17cc domes, weisco pistons. i got a killer deal on the carb so i couldnt pass it up.

 

 

what kinda gas are you running? I know it doesnt have nothing to do with it but..

[craptorkiller]

what kinda gas are you running? I know it doesnt have nothing to do with it but..

 

93. comp is like 155-160. domes say 17cc but i dont think they are.

[jimbob]

where abouts in the throttle range is it bogging? ie 1/4...1/3... 1/2...3/4's as this tells you which circuit is out of balance. if its idling fine then its not the pilot. if it around mid then its probably down to the needle position being too high (clip too low). but as stated 39mm does seem awfully big.

[craptorkiller]

where abouts in the throttle range is it bogging? ie 1/4...1/3... 1/2...3/4's as this tells you which circuit is out of balance. if its idling fine then its not the pilot. if it around mid then its probably down to the needle position being too high (clip too low). but as stated 39mm does seem awfully big.

it boggs up to about half throttle

[XxMeltIcexX]

Whats jets are you running? What needle?

[#1banshee]

i dout its a 17cc if ur running 93 with +4 timing I think you would be buring a hole in the piston.. Correct me if im wrong? Im not too good with jetting as Im going to need help my self but..

Edited December 20, 2008 by #1banshee

[jimbob]

well basic carb theory dictates that if its between 1/4-3/4 throttle then its needle postion being too high or needel jet being too large. (usually a mix of both). check to see where the clip is. on the top of the needle there are 5 slots. standard bring slot 2 0r 3 (clip settings are always counted from the top down). the lower the clip the high the needle will be in the needle jet therefore letting too much petrol in. raise the clip one slot at a time and test every time. if you get all the way to the top slot then the chances are the needle-jet combo are probably too big.

also a point to add is the taper on the neele, racing or "tuned needle's" have a more agressive taper to allow faster fuel delivery.

hope this helps

[R/C Hippie]

Check for air leaks on the intake to.

[locogato11283]

jets will tell it all. what are you running?

[sheerider1026]

drop a smaller main jet in it.. see if it improves.. if not i would play with using different needles.. i had the same problem with my 2 into 1 setup (35mm pwk) then i switched to the EEK needle and it runs excellent.. i still had to dial in my jetting of course.. but no more dead spots or blurbering