150 won't stay running By billtrek (Read 578 times)

[billtrek]

After up sizing my jets I had a problem with the bike stalling a few days after I started riding it
I replaced the coil, and the choke with new ones And then had trouble starting it. I checked the
spark. Looks good and bright. Gas comes out of the hose after the gas filter when you hit the
starter. Air filter is removed. Put the original 104 jet back in. Set the fuel mix at 1 1/2 turns from
closed. Checked the vacuum hoses after checking with rapidjim. They look right. The vent hose
on the head goes to a splitter connected to a hose going into the gear box area and a hose that
use to go into the old airbox but is now just hanging back there open. It will start for a few
seconds and then stall. Also if you try to move the throttle it stalls.
Not sure what my next step is.

Bill

[Alleyoop]

First thing to do is attach the air filter otherwise you are sucking in to much air and not enough fuel.
Also set the Fuel Mix to 2 1/2 turns from the closed position.

Any open connectors on the airbox that a hose was attached needs to be plugged up otherwise it will suck in to much air.

Take some pics of the hoses your talking about and air box.

[billtrek]

Ok, I reattached the air filter. I also set the fuel to 2 1/2 turns. Wouldn't even start.
Sorry it no longer has an airbox. I put a uni filter directly on the carb last summer.
These are the pictures I used to check the vacuum and vent tube connections.




too dark to take any pictures of my trike tonight. I'll try tomorrow.

[Alleyoop]

Did you change any of the carbs JETS? Reason I ask is with the UNI it is sucking in a lot of air.

What you can do is get some tape or a nice heavy white sox that you put on with sneakers and cover about 1 inch of the uni from the end and try to start it. If still no, move the sox 1 more inch over the unid and try. What your doing xis cutting off some of the air to allow more fuel to the air ratio.
Alleyoop