13BTOY

iTrader: (1)

I need some input here guys. I have my RB Dellorto on my ported 4port 13B and it's running extremely rich. If I set the mixture screw at 3 turns it seems like the carb loads up and the engine wants to stall. I can only get it to hold a steady idle with 6 turns(360) of the idle mixture screw. Is this normal because of the porting?


Thanks, Ed

mortenf

What kind of 4 port? I have a 76-78 13B, and running a 45 DHLA. Have a look at this site for a "how to tune your Dellorto"

http://www.racecar.co.uk/dellorto/ca...ttors/dhla.htm

What kind of jetting are you running?

Siraniko

iTrader: (13)

turn the air mixture screw clockwise til its almost dying, then back out a full turn (counter-clockwise) depending on ur idle jet. larger jet = less turn; smaller jet = more.

13BTOY

iTrader: (1)

I'm using 12A plates(tall center ports) and 85 GSL-SE rotor housings and rotors. 48 DHLA with 75 idle jets as per Racing Beat.

Mel, I'll try that and let you know.


Thanks, Ed

Maguire

iTrader: (1)

you might want to ask drivefast7 what he is running on his repu's 13b. he helped me alot with jetting on my dhla.