china performance

CODZ42

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hey guys, i have just recently bought a engine kit for my bike on ebay just for me to start on, it is aparntly 80cc and 5-6hp. im deciding wether to go for a modified cheap engine or spend the extra money for a highend engine.. how much power are these china internals capable of handling, i have found a fair amount of performance parts. i just want to find out whats the best way to make a powerful engine for my setup.

thanks, cody
 
most kits that say 80cc are really about 66cc to 68cc

they usually have about 2.5hp

any performance parts that just bolt on are often going to leave you with a bike that is hard to start or slower than a standard model unless you learn a lot about tuning them

I'd recommend building what you get and learning about it by running it a while before trying to change it.
 
most kits that say 80cc are really about 66cc to 68cc

they usually have about 2.5hp

any performance parts that just bolt on are often going to leave you with a bike that is hard to start or slower than a standard model unless you learn a lot about tuning them

I'd recommend building what you get and learning about it by running it a while before trying to change it.

I agree 100%. A stock 66cc china girl will hit 30-35mph. Plenty fast to start with.
Big Red.
 
i just want to find out whats the best way to make a powerful engine for my setup.

At this point, it is not finding the best way to make a powerful engine, but a dependable engine. Save your money on performance parts. Just get the darn thing running good and know how to tune it. With these engines, proper setup is important. If you haven't seen it yet, here's a good guide in setting up your engine:

https://docs.google.com/document/d/1GcesQihc7-mm3hJGf7UPiqOaRXZ8ekUT99QUZq2qXXE/edit

For no-start conditions or trouble running, here's 2 good guides that should be book marked by all new members:
https://docs.google.com/document/d/1aBeJuoS--VQWwXysc07rpscTUbPzgc93xjiQBgsyFjc/edit
http://www.grubeeinc.com/USA/2 cycle engine trouble shooting guide.html

Good Luck,

Chris
AKA: BigBlue
 
for some folks, "docs.google.com" shows only a blank screen with error msg - are those available elsewhere?
 
At this point, it is not finding the best way to make a powerful engine, but a dependable engine. Save your money on performance parts. Just get the darn thing running good and know how to tune it. With these engines, proper setup is important. If you haven't seen it yet, here's a good guide in setting up your engine:

https://docs.google.com/document/d/1GcesQihc7-mm3hJGf7UPiqOaRXZ8ekUT99QUZq2qXXE/edit

For no-start conditions or trouble running, here's 2 good guides that should be book marked by all new members:
https://docs.google.com/document/d/1aBeJuoS--VQWwXysc07rpscTUbPzgc93xjiQBgsyFjc/edit
http://www.grubeeinc.com/USA/2 cycle engine trouble shooting guide.html

Good Luck,

Chris
AKA: BigBlue

Only had one of these, Thanks.
Big Red.
 
hey guys, i have just recently bought a engine kit for my bike on ebay just for me to start on, it is apparently 80cc and 5-6hp.
Rrrr, RRrrrr RRRRRR!
That is the sound of your E-bay sellers fishing pole with another 'motor spec' sucker on the hook.

That's OK, job one is isn't performance, it is mounting the motor and rear sprocket properly.
It doesn't matter what the power is, if that rear sprocket isn't true and aligned with the motor you will have problems, and if you drill the front down tube or some other gimmick to attach the front of your motor to the bike it just gets worse.

Post up what bike you are using because that is the most important.
 
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