Author Topic: What Carb Jet Size for '72 836 big bore kit? Falls on face above 5000 rpms.  (Read 1686 times)

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Offline Shinobi68

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The bars are most likely the same as from 4into1. 

BTW there's a SoCal 750 group in the Orange county area,  they are meeting at Cars and Coffee on Saturday morning if you want to go for a ride. Good group of guys. They just rode up north this past weekend.

Where do I adjust the carbs to make it run richer at WOT at?

I took it to a shop last October and the guy did something to the carbs...said he turned the screws out a turn or so. Now it runs really good....doesn't miss at part throttle or while pulling from 0-7K rpms, but when I go WOT past 7-8K rpms it acts starve again, begins to stutter a little...keeps pulling though. I tried it with the choke closed a little to see if it got worse or better and it definitely got worse, so it is not getting too much fuel, must not be getting enough gas up top now. Unless it's because the gas is 6 months old??? It's been in the tank since last October.

The rest of the rpm band from 0-7K rpms runs great in all gears after I'm at cruise 3-4K rpms.

I still have to order the shorter cable from 4into1.

Offline newday777

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  • Avatar is my 76 K6 in Colorado w/Cody on back 1980
The bars are most likely the same as from 4into1. 

BTW there's a SoCal 750 group in the Orange county area,  they are meeting at Cars and Coffee on Saturday morning if you want to go for a ride. Good group of guys. They just rode up north this past weekend.

Where do I adjust the carbs to make it run richer at WOT at?

I took it to a shop last October and the guy did something to the carbs...said he turned the screws out a turn or so. Now it runs really good....doesn't miss at part throttle or while pulling from 0-7K rpms, but when I go WOT past 7-8K rpms it acts starve again, begins to stutter a little...keeps pulling though. I tried it with the choke closed a little to see if it got worse or better and it definitely got worse, so it is not getting too much fuel, must not be getting enough gas up top now. Unless it's because the gas is 6 months old??? It's been in the tank since last October.

The rest of the rpm band from 0-7K rpms runs great in all gears after I'm at cruise 3-4K rpms.

I still have to order the shorter cable from 4into1.

What main jets do you have in it?
Did you do plug chops yet?
Stu
Honda Parts manager in the mid 1970s Nashua Honda
My current rides
1975 K5 Planet Blue my summer ride, it was a friend's bike I worked with at the Honda shop in 76, lots of fun to be on it again
1976 K6 Anteres Red rebuilding project, was originally my brother's that I set up from the crate, it'll breath again soon!
Project 750s, 2 K4, 2 K6, 1 K8
2008 GL1800 my daily ride and cross country runner

Prior bikes....
1972 Suzuki GT380 I had charge of it for a year in 1973 while my friend was deployed and learned to love street riding....
New CB450 K7 after my friend returned...
New CB750 K5 Planet Blue, demise by ex cousin in law at 9,000 miles...
New CB750 K6 Anteres Red, to replace the totaled K5, I sold this K6 at 45k in 1983, I had heavily modified it, many great memories on it and have missed it greatly.....
1983 GL1100A, 1999 GL1500 SE, 1999 GL1500A