Author Topic: Carb question for the pros  (Read 3675 times)

0 Members and 1 Guest are viewing this topic.

Offline Industrial Cafe

  • Like a well oiled
  • Really Old Timer ...
  • *******
  • Posts: 6,372
  • [Brian] I've got something to say about that!
    • Undead Asphalt
everything I say is pure speculation and
I have no idea what I'm talking about  ._.


                                    Marla              .:71CB750:.CAFE

Offline tech10

  • Full Member
  • *
  • Posts: 40
  • 1976 Honda CB750K - Customized
Re: Carb question for the pros
« Reply #26 on: June 12, 2009, 06:18:54 PM »
thanks bud, im running just the straight headers.  Could explain alot!

Offline Industrial Cafe

  • Like a well oiled
  • Really Old Timer ...
  • *******
  • Posts: 6,372
  • [Brian] I've got something to say about that!
    • Undead Asphalt
Re: Carb question for the pros
« Reply #27 on: June 12, 2009, 06:45:53 PM »
I'm runnin pods and a straight yoshi, i have 115's and they're a little lean after 6000rpm

   the 125's that were in when I got the carbs were far too rich.
thinkin about getting a set of 118's and 120's to try out myself.

everything I say is pure speculation and
I have no idea what I'm talking about  ._.


                                    Marla              .:71CB750:.CAFE

Offline tech10

  • Full Member
  • *
  • Posts: 40
  • 1976 Honda CB750K - Customized
Re: Carb question for the pros (new Update)
« Reply #28 on: June 17, 2009, 07:26:04 PM »
alright, i put my 115 i ordered in first and its running great. The motor is not falling on its nose when i pull the throttle quickly. I went to put my chain on to give it test ride (first time i might say) and the B#$%*H is to short. I did a search and the specs said a 530-100 chain. I guess i needs a 120.. >:(

What size chain are you guys running?

I also did a complete carb cleaning this weekend. Took them completely apart and soaked.

Offline alltherightpills

  • Expert
  • ****
  • Posts: 1,330
Re: Carb question for the pros
« Reply #29 on: June 17, 2009, 07:43:10 PM »
Did you slide the rear wheel as far forward as it would go?
78 550K
77 550K (in pieces)
71 500K0 (in pieces)

Offline tech10

  • Full Member
  • *
  • Posts: 40
  • 1976 Honda CB750K - Customized
Re: Carb question for the pros
« Reply #30 on: June 17, 2009, 07:51:00 PM »
Did you slide the rear wheel as far forward as it would go?

I did, but still to short. Also that made me run into my fender and mounting bracket. Can't do that.

Offline alltherightpills

  • Expert
  • ****
  • Posts: 1,330
Re: Carb question for the pros
« Reply #31 on: June 17, 2009, 08:00:00 PM »
Hmmm.  I don't know what to tell you then.  When I put my new chain on, I thought it was too short, and then I figured out that I could slide the wheel forward and it gave me enough room to get the link in.  I was only short an inch and a half or so though.  Sounds like you are a lot shorter than that.
78 550K
77 550K (in pieces)
71 500K0 (in pieces)

Offline medic09

  • Old Timer
  • ******
  • Posts: 2,666
Re: Carb question for the pros
« Reply #32 on: June 17, 2009, 09:52:48 PM »
thanks bud, im running just the straight headers.  Could explain alot!

Remember that the jetting should be done for how you will eventually ride the bike on the road complete.  Pods or filter, open headers or baffled exhaust.  Whenever you change something on the intake side or the exhaust side, it can/will effect how the motor performs with the jets that are installed.

Sorry if I've stated the obvious.
Mordechai

'78 CB750K
'76 Triumph T160 Trident (rebuilding)
'07 aprilia Caponord

Santa Fe, NM

Offline Industrial Cafe

  • Like a well oiled
  • Really Old Timer ...
  • *******
  • Posts: 6,372
  • [Brian] I've got something to say about that!
    • Undead Asphalt
Re: Carb question for the pros
« Reply #33 on: June 20, 2009, 09:07:03 PM »
one of your sprockets might be bigger, try a 108 link and take out what you don't need.
by grinding the pin off with a dremel.

108 is about 4 inches longer then the 100 when you fold it in half.
everything I say is pure speculation and
I have no idea what I'm talking about  ._.


                                    Marla              .:71CB750:.CAFE

Offline tech10

  • Full Member
  • *
  • Posts: 40
  • 1976 Honda CB750K - Customized
Re: Carb question for the pros
« Reply #34 on: June 21, 2009, 11:28:47 AM »
UPDATE UPDATE ;D ;D

Got a longer chain and took out the links to what i needed.

I rode the beast for the first time yesterday. Oh what a joy! I've been working on this project since November. The motor ran outstanding. No trouble with the carbs, but i am going to pull the plugs and see what they show. Of course with all things i had one problem. My rear fender mount was rubbing the back tire so my dad and I had to pull the rear fender off and bend the bracket forward. With doing this some of the weld had to be broken and my bondo to smooth things out cracked. Sooooooo i will have to redo the back part of the frame. I'm glad my cuz is a body shop guy. I'll let him tackle the feathering in of new paint.

But hey, the "beast" ran. Now i gotta get a tag, hook up brake light, blinkers and headlight. All is good.

Offline Industrial Cafe

  • Like a well oiled
  • Really Old Timer ...
  • *******
  • Posts: 6,372
  • [Brian] I've got something to say about that!
    • Undead Asphalt
Re: Carb question for the pros
« Reply #35 on: June 27, 2009, 01:19:45 PM »
alriiight!!!
everything I say is pure speculation and
I have no idea what I'm talking about  ._.


                                    Marla              .:71CB750:.CAFE