Topic: Carb swap question

[cphines]

I know people say swapping round tops is the best for carb swaps on our hondamatics, but then they say it stumbles when you crank back on the throttle because of the lack of an accelerator pump. Would it not be better to put keyhole carbs on since they have the accelerator pump as well? Seems as if the accelerator pump keeps it from stalling, the stumbling issue would be gone. Plus they appear to be pretty similar carbs in build.

[dave the welder]

you could  however the round tops are a little easier to tune.if you yank the throttle wide open real fast they do stumble so don't open them fast just crack them and when you start to move  just roll into it. the learning curve to ride with round tops takes all of about 30 seconds to master

[cphines]

I guess that makes sense. Thanks Dave. I'm a first time restorer/builder, so I just want to make sure I do my best to revive this bike correctly from the beginning.

[nixon]

im doing this change this week so will report soon -  k4 cam n carbs with breadbox filter

[nixon]

Hitting snags with throttle cables..did u use custom or stock dave?

[dave the welder]

use throttle cables from the K model a little close by frame but will work