porting a 4 stroke carb
- Thread starter karma1968
- Start date
Bikeguy Joe
Godfather of Motorized Bicycles
Who was just asking about the four stroke with a shift kit tyrslider?
karma1968
New Member
i just made a few videos of my projects feels free to poke around
YouTube - karmabike1911's Channel
cheers
YouTube - karmabike1911's Channel
cheers
karma1968
New Member
Terry Blow
Dealer & Custom Builder
Hey Karma do you need a new carb now or is it working ???
Terry Blow
Dealer & Custom Builder
Hi Karma
I just took my carb off to look at what you have done and please this is trying to be helpful here. But the mod you have done has most likely ruined the carb the section you ground out so nice and clean and beautiful are necessary parts of the carburetor they are called the venturi. The venturi causes a low pressure area and causes the cab to suck fuel into the jets causing it to mix air fuel for the engine. With this crucial part now ground out has rendered it in all likely hood useless and now only good for parts. The good news is they are only $40 bucks and you will now have a remote choke. Please prove me wrong here I hope I am
You can grind out the housing prior too the venturi on the choke side and the intake side prior to the venturi and you can even grind out the intake a little and make the carb hole match the intake hole but that is it.
Cheers
Terry
I just took my carb off to look at what you have done and please this is trying to be helpful here. But the mod you have done has most likely ruined the carb the section you ground out so nice and clean and beautiful are necessary parts of the carburetor they are called the venturi. The venturi causes a low pressure area and causes the cab to suck fuel into the jets causing it to mix air fuel for the engine. With this crucial part now ground out has rendered it in all likely hood useless and now only good for parts. The good news is they are only $40 bucks and you will now have a remote choke. Please prove me wrong here I hope I am
You can grind out the housing prior too the venturi on the choke side and the intake side prior to the venturi and you can even grind out the intake a little and make the carb hole match the intake hole but that is it.
Cheers
Terry
Terry Blow
Dealer & Custom Builder
I just went over your video and there is only one area that can be ground out and is the area on the intake side of the butterfly you can not grind anything farther in the carb than that. sorry to say
Terry Blow
Dealer & Custom Builder
WOW I cant wait to see it run I will shut my big mouth now
Terry Blow
Dealer & Custom Builder
The way the carb is now it will not run with out the choke on witch would lead you to think you need larger jets.
Terry Blow
Dealer & Custom Builder
Good I am glad to hear it is work good, do you notice any performance increases?
My self and my friend and my brother where going over what can be done to the HuaSheng engine because I have a brand new one and we took the carb off and where looking just what can be done. In the head it's self there is nothing that can be done. infact the head intake port is larger than the carb throat. It would likely accept a larger carb over all. That is for another day just one more question where did you get the larger jets?
Thank you
Terry
My self and my friend and my brother where going over what can be done to the HuaSheng engine because I have a brand new one and we took the carb off and where looking just what can be done. In the head it's self there is nothing that can be done. infact the head intake port is larger than the carb throat. It would likely accept a larger carb over all. That is for another day just one more question where did you get the larger jets?
Thank you
Terry