Jump to content

Recommended Posts

Posted

Ok just wondering if anyone else had the setup. This a brand new top end. I have a 172 in the carb now down from the 180 they supplied. Its still rich because when i remove the plugs after a lil running it looks like unburnt oil on the plugs. I dono if i should leave it this way till brake in is over or should i go down to a 170 and lean it out with the needle. Also could my pilot be too big? I have no bottom rev its bogs when i blip the gas. Any help would be appreciated as I intend to be at the track this week and race this weekend. Thanks-JOE

Posted

What size is the carb, what pilot are you running, and what's the needle postion? Also, how is your airbox/air filter setup? What's your elevation?

Posted

dynoport 2 into 1, cv2 35mm, 195 main, 45 pilot, k&n with box(no lid), 100 to 200 feet elev.

 

what is the plug color? after 6th WO ?

 

the excess oil could just be too high a ratio of premix?

 

 

just my 2 cents, anyone else ?

Posted

its bogs when i blip the gas

 

 

does blip mean when your at idel and feather the gas it will hesitate a bit and then take off?

 

 

well just add more air to it if that dont work add more fuel. but id say more oxogen

Posted

well i sat for a whole nother day playing with the damn thing on monday so now its either going to speed freeks or my friends shop to be tuned. Im done after spending more then 70 bux on jets and still runs like shit. By the way now i have a 165 main in and a 42 pilot with the needle in the middle and the air fuel 1 from closed. Still doing the same shit. So now i give up because i need this done.

Posted

if its a keihin, I'm running a 180main.

my pilot is too big at 50 though.

my air screw is about 2 turns out give/take a half turn.

Mine still bogs on the low end, but also loads up when it idles for awhile, hence the too big pilot.

Posted

then maybe i really need to go lower on my pilot even though im at a 42. Well ill be bringing it to be tuned cuz im sick of playing with it.

Posted

Has the motor been ported. If so, some port jobs can have a "hesitation" on the low end caused from improper port timing. Some carbs make the hesitation worse than others. For example a Mikuni has better low end adjustments than a Kehin so you can generally tune through the bog better. Not saying this is the problem, just something to check. You may need to go to a different needle to help the transision between the pilot and the needle. Good luck!

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...