Stock carb mod

Exactly egor, i saw that little hole and you took my doubts

I didn't get very well..when you say "You may be able to make a slot in the gasket over to the main intake runner"

Hey egor my blue bike took 3rd in the spookytooth Holloween race heres the picture from my yellow one and some race pics.
Happy trails
Ken

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i stripped my carb down today and bore it out and polished. lol it does work...
before the work the motor would bog when warming up. now even cold theirs more power weird..

when i get the chance i wanna drill the hole for the idle but at the moment im happy with it.

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http://www.karmabike.net

Very cool karma!

What's the diameter of stock main jet of carb? #70?

thanks

no idea next time i have it apart ill have a look. that would have been the next thing to play with if this mod didn't work..

its a virgin and new so #70 it likely is..

one thing i do need is a gas filter i found some grit on the bottom of the bowl....

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http://www.karmabike.net

Heys guys, i just finished modding my carb, and i make an additional mod, take a look:

The bigger is from a kreidler florett rs carb, a bing 21mm i think:


The mod i make:


Lapping the side of intake, dont know if it works, but the other bing slide have it, so i think that will be better



Opinions?

interesting i would guess the idol will be higher. worth testing

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http://www.karmabike.net

Daniel - The cut in the slide is for running just off idle, the larger the cut the leaner the mix, if the engine blubbers at that throttle position it needs a larger cut. The number you see on the slide to the Bing carb lets you know what number the cut is. If you start cutting the slide it gets kinda complex, I have done two of the happy engines so far. They were the only ones that needed it. Nice to see someone willing to try some new idea's. These carbs are cheep and if you mess it up they are easy to replace. I did the hole in one for a friend today and got it a little far up the runner, I will see how it turns out, but it will not need the notch in the slide as it is out in the clear. Have fun, Dave

PS: We should be running the needle clip in the middle slot, but all need to be at the top so that indicates the needle is too narrow. The float makes a big difference also.

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Chuck - The monkey has the spark plug again! http://motorbicycling.com/f28/chuck-...gain-5782.html

Ken - I would love to make it out for one of those Spooky rides, looks like you all had a blast. How is that Giant carb doing on that happy engine? I have a few to some old Honda 90's out in the garage, and bigger, I could give it a go and see how they would work. Have fun, Dave

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Chuck - The monkey has the spark plug again! http://motorbicycling.com/f28/chuck-...gain-5782.html

Well I finished another hopped up build today. Did all the porting and milled the head, and lastly the carb mod. On this carb I got the hole on quite a steep angle so it came out in front of the slide. I was not happy with the way it came out, but I am happy with the way it runs. I let the bike idle for a few minutes and it just clicks along as happy as I am. But the best part is that it is not sloppy at all when you give er the gas it just blips right up there. I am adding the cotton to all of them now. I think this is the first engine I have milled the head ( I am not fond of Detonating ) and these engine are millions of miles away from having the correct amount of engine cooling fins. High comp makes heat and heat makes them ping. We will see so far this bike really moves. I will have to try and keep the customer from spinning this thing apart.

PS: I did not put the notch in the slide on this one.

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Chuck - The monkey has the spark plug again! http://motorbicycling.com/f28/chuck-...gain-5782.html