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Some pics of the old girl and a carb question

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Thu Apr 14, 2011 9:32 am

Do ya have the screws in the proper location.
If so how did ya adjust the air screw.
Check for a leak with carb cleaner. ..............lm


maybe368 wrote:
brewsky wrote:There is another O ring between the carb insulator and intake port.

Also, the carb body can become warped from overtightening the mounting screws, a common occurence. If so, that O ring may not seal.

Have you tried richening the idle mix screw? (the one closest to the motor)
Thanks, I'll replace that other oring, The idle mix screw does not seem to have any effect, any ideas or clues from this? Should I put the originals back in. I read in an older thread to not use any of the brass in the kit. Thanks for the help...Mark

maybe368
honda305.com Member
Posts: 22
Joined: Sat Nov 28, 2009 7:33 pm
Location: Phoenix. AZ

Post by maybe368 » Thu Apr 14, 2011 9:48 am

LOUD MOUSE wrote:Do ya have the screws in the proper location.
If so how did ya adjust the air screw.
Check for a leak with carb cleaner. ..............lm


maybe368 wrote:
brewsky wrote:There is another O ring between the carb insulator and intake port.

Also, the carb body can become warped from overtightening the mounting screws, a common occurence. If so, that O ring may not seal.

Have you tried richening the idle mix screw? (the one closest to the motor)
Thanks, I'll replace that other oring, The idle mix screw does not seem to have any effect, any ideas or clues from this? Should I put the originals back in. I read in an older thread to not use any of the brass in the kit. Thanks for the help...Mark
Are they interchangeable? That could be it, I assumed that they were not. Can you describe which goes where? Thanks...Mark P.S. I put the air screw at 1 1/8 turns out...
You didn't stop running because you got old, you got old because you stopped running

User avatar
brewsky
honda305.com Member
Posts: 1816
Joined: Wed Jul 23, 2008 5:21 am
Location: Princeton, WV

Post by brewsky » Thu Apr 14, 2011 10:29 am

Pics of the different screws in this thread:
http://www.honda305.com/forums/viewtopi ... sc&start=0
Attachments
CA77 Carb Screws.JPG
66 dream, 78 cb750k, 02fz1, 09 wing

maybe368
honda305.com Member
Posts: 22
Joined: Sat Nov 28, 2009 7:33 pm
Location: Phoenix. AZ

Post by maybe368 » Thu Apr 14, 2011 10:38 am

Thanks Brewsky, I think I am going to put the originals back in and see what happens...Mark
You didn't stop running because you got old, you got old because you stopped running

maybe368
honda305.com Member
Posts: 22
Joined: Sat Nov 28, 2009 7:33 pm
Location: Phoenix. AZ

Success

Post by maybe368 » Thu Apr 14, 2011 11:01 am

I put the originals back in and she is idling like a champ. The "new" throttle screw was noticeably a different size...Thanks a million...Mark
You didn't stop running because you got old, you got old because you stopped running

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Thu Apr 14, 2011 4:04 pm

The air screw has a tapered blunt end and the slide screw has a long shaft and rounded end. .......lm


maybe368 wrote:
LOUD MOUSE wrote:Do ya have the screws in the proper location.
If so how did ya adjust the air screw.
Check for a leak with carb cleaner. ..............lm


maybe368 wrote:
brewsky wrote:There is another O ring between the carb insulator and intake port.

Also, the carb body can become warped from overtightening the mounting screws, a common occurence. If so, that O ring may not seal.

Have you tried richening the idle mix screw? (the one closest to the motor)
Thanks, I'll replace that other oring, The idle mix screw does not seem to have any effect, any ideas or clues from this? Should I put the originals back in. I read in an older thread to not use any of the brass in the kit. Thanks for the help...Mark
Are they interchangeable? That could be it, I assumed that they were not. Can you describe which goes where? Thanks...Mark P.S. I put the air screw at 1 1/8 turns out...

maybe368
honda305.com Member
Posts: 22
Joined: Sat Nov 28, 2009 7:33 pm
Location: Phoenix. AZ

Post by maybe368 » Thu Apr 14, 2011 5:07 pm

OK after finding out how common it is for the carb base to be warped, I pulled the carb to check it and it must have been .25 MM or more out. I filed it down with a fine file, put the original screw adjusters in and she purred like a Kitten, right up to the point that she ran out of gas....Doooooh, Oh well, off for more gas and i'll report back, but I think she's runnin' right now, Thanks again for all the help...Mark
You didn't stop running because you got old, you got old because you stopped running

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