4 mil built need help!

[albecao88]

Hello guys, I am new to this forum and I am in need of some help. I am trying to build a 4 mil. I just bought the engine it was already built. I need to know what are the right carborators for it and which gas should I run on them. Also which sprackets should I use for better performance. Please let me know, thanks.

[sheerider11]

Stock carbs, pump gas, stock gearing .

[AKheathen]

lol. you need to tell us the specifics of the motor. whoever built it should be able to help you there.

[mike0chek]

lol. you need to tell us the specifics of the motor. whoever built it should be able to help you there.

 

x10, this will determine alot of your options.

[albecao88]

Thanks for your replys. I am trying to get in contact with the guy who I bought the engine from and all he told me was it has a cool head ported 4 mil. Does this infor help in any way?

[Nightmare]

Thanks for your replys. I am trying to get in contact with the guy who I bought the engine from and all he told me was it has a cool head ported 4 mil. Does this infor help in any way?

No

 

Sent from my SGH-T679 using Tapatalk 2

 

 

[albecao88]

Heres the information that i have on the engine. It has a cut tranny 2~5' chromed all, 65mm pistons and 4 mil crank. If this would help please let me know. Thanks

[coryv4]

Heres the information that i have on the engine. It has a cut tranny 2~5' chromed all, 65mm pistons and 4 mil crank. If this would help please let me know. Thanks

find out what cc domes are in the head what kind of port job (trail mx dune drag ect) and your elevation then we can help

[Josh Z]

advice = send it to a biulder... tell them what you want to do with it and have them tell you what you need.... end of advice.

[troyzstang]

Welcome to BansheeHQ

 

We can be kind of a tough crowd at times. Don't take it personal. You'll get used to it.

Anyway what type of riding are you planning to do. We can start there.

 

Once again Welcome

 

Troy

[spurdy]

Depending on the port job and how much it flows will be a factor in carb size. I run 35 PWKs on one of mine on gas and 40 PWKs on my other on alky.

 

SP

[albecao88]

Thank you all for your responses, and thanks for the welcome troyzstang. As soon as I get more info I will let you guys know. And thanks for the help.

 

[albecao88]

I just received the specs of the engine: a drag port with 19cc domes. I am looking to use the bike for drag racing and for fun. Please let me know. Thanks

[spurdy]

That motor could likely handle a pretty good sized carb.  I don't think I would run anything smaller than a 33pwk on gas.  You compression ratio or static compression will determine what octane fuel you need to run to prevent detonation.  You can either determine this yourself or ask the builder.  You could run alky but you will use about twice as much alky as gas so it may not be a very fun "fun" bike as you will always be getting fuel.  Also, you can set an alky bike up a little different than a gas bike with a different dome size and cut.  May just want to stick with what was running in it before.  Any idea what timing it was running at or if it even has an adjustable plate?

 

SP