Changed to higher flow air filter, several pull start now

[ghostdog]

Could just changing from the stock filter to a cone style filter cause my predator engine to take several pulls to start? Maybe I need a bigger emulsion tube /jet?

 

[OND]

Yes probably a bigger jet would help, and the e-tube can't hurt.

 

[ghostdog]

Yes probably a bigger jet would help, and the e-tube can't hurt.

Can you recommend which sizes to get? Thanks

 

[Camjamsdad]

Mess with 1 part the rest need to be brought back in line. I would start with the main jet, then the e tube. That way you can judge what each change does. One of of my bikes likes a 140 etube, the radical bike won't run with it.

 

[OND]

Can you recommend which sizes to get? Thanks

I would start with a .036 jet. jmo

 

[Boomstick]

Upjet & header.

The more air you're sucking in, the more fuel you're going to need to take in (otherwise, it will be running far too lean, will perform poorly & be far more difficult to start).

Then, you need a more efficient way for that combusted fuel/air charge to escape its pressure vessel. That would be a proper exhaust system.

 

[ghostdog]

I ordered this jet kit. Jet kit for Honda Clone engines

I am running a this exhaust. Narrow Frame Pipe w/ Screw on Muffler Honda Clone

 

[jbrocks]

I'm using a .40 jet in my carb, similar pipe, air filter (the upgrade kit from OldMiniBikes) one pull to start. Check out my project log where I go through everything plus all the unexpected consequences (and there are) that come up from doing these mods. Get back with me if you have questions.:thumbsup:

http://www.oldminibikes.com/forum/p...s-classic-OldMiniBikes-predator-upgrades.html

 

[ghostdog]

I changed to a .36 jet and the 140 emulsion tube. Now it starts with 1 pull again. Crazy.

Thanks guys.

 

[OND]

I changed to a .36 jet and the 140 emulsion tube. Now it starts with 1 pull again. Crazy.

Thanks guys.

...:wink:...