Elevation Changes

DAMIEN1307

Moderator
Staff member
Joined
Jul 23, 2020
Messages
4,582
Can you send a link to your carb? I have one of those racing carbs but the choke on it broke so I changed it. The piece didn't release when I gave a full throttle like it should.
These are the jets that fit the JRL BoFeng carby as well if you need to tinker a bit for altitude changes...The BoFeng comes stock with the #70 jet.

 

EthanRevBike

Member
Joined
Oct 13, 2021
Messages
34
Yep...Don't let the low price fool you...This sucker works well...It should come with an O ring that fits inside the carby where the intake goes in...If not, get one at your local auto parts store and ask them for the Viton O ring since it is resistant to gas and oil unlike some others that are out there.

I have this one.
Racing Carburetor 2 Stroke 49cc 66cc 70cc 80cc With Air Filter For 2 Stroke Engine Motorized Bicycle RED https://a.co/d/17CeQj2
 

DAMIEN1307

Moderator
Staff member
Joined
Jul 23, 2020
Messages
4,582
I have this one.
Racing Carburetor 2 Stroke 49cc 66cc 70cc 80cc With Air Filter For 2 Stroke Engine Motorized Bicycle RED https://a.co/d/17CeQj2
Yep...I would be replacing any carby that says in their ad instructions "Note:You have to wrap several layers of thread tape around it if you are replacing the NT carb that came with your 66/80cc bicycle engine,"...lol...Sure sign that it will never run right or for very long...lol...Get the JRL BoFeng you asked me for the link that I posted...It works without having to futz around with it once you have the needle valve where you want it, or also a diferent jet for extreme altitudes...lol.
 

Karl Snarl

Well-Known Member
Joined
Sep 20, 2019
Messages
5,690
The only thing he didn't mention, you can add rocket fuel to get more oxygen if you are to lazy to jet. Just keep dumping it in the gas mix till it runs right. A little expensive at $100 a gallon, but I love the stuff. An the smell is so wonderful!!! I run 20-24 ounces a gallon of 2 stroke gas mix. Oh and add some more oil in, the stuff burns real hot.
 

DAMIEN1307

Moderator
Staff member
Joined
Jul 23, 2020
Messages
4,582
Rocket fuel...Yep...lol...I think I will just drop this one right here...lol...lol.

gettyimages-SO001211-612x612.jpg
 

DAMIEN1307

Moderator
Staff member
Joined
Jul 23, 2020
Messages
4,582
This wouldn't be complete without some other film clips of "Karl's" experiments with rocket fuel...lol...Just ask him how he blew up his rocket fuel storage shed...lol...OH...I think that ones in this clip too...lol...lol.

Ps...YEP...Karl just loves things that, go up, fall down, blow up, and go "BOOM"...lol.

 
Top