AspireCycle
New Member
Just finished getting my bike all tuned up. I call it the "Womp Rat". I wanted to publicize my tuning because I know people are always looking for some guidance or a rough starting point for their setup. I have benefitted from someone else's info in the past as well. I figured this would be a good spot as it comes up in a google search.
Pics are on Instagram and Facebook under Aspire Cycle
https://instagram.com/p/BS-BK7zlhFk/
1978 KZ400 with original Keihin carbs. I have eliminated the airbox, installed K&N pod filters and made a custom scrambler style exhaust with 8" metal baffles from a seller on eBay. I also have a 7th Gear Designs electronic ignition setup which really pepped up the motor but caused me to have to re-jet.
I ended up with the following settings-
Idle jet 40 (plugged off)
Secondary main 75
Primary main 108
Mixture screws one full turn out from seated.
Took a ride today, April 18, had to change a few things. It seems the bike always changes after cooling off entirely.
Idle jet 40 (plugged off)
Secondary main 75
Primary main 105
Mix 1.75 turns out from seated
Hopefully this is useful to someone out there!! I'll update this thread if I make any changes. For now I'm leaving it because there are only a few days until Handbuilt Show!
Pics are on Instagram and Facebook under Aspire Cycle
https://instagram.com/p/BS-BK7zlhFk/
1978 KZ400 with original Keihin carbs. I have eliminated the airbox, installed K&N pod filters and made a custom scrambler style exhaust with 8" metal baffles from a seller on eBay. I also have a 7th Gear Designs electronic ignition setup which really pepped up the motor but caused me to have to re-jet.
I ended up with the following settings-
Idle jet 40 (plugged off)
Secondary main 75
Primary main 108
Mixture screws one full turn out from seated.
Took a ride today, April 18, had to change a few things. It seems the bike always changes after cooling off entirely.
Idle jet 40 (plugged off)
Secondary main 75
Primary main 105
Mix 1.75 turns out from seated
Hopefully this is useful to someone out there!! I'll update this thread if I make any changes. For now I'm leaving it because there are only a few days until Handbuilt Show!