Yamaha big bear carb help

[bellwood]

I let my yamaha big bear sit too long so cleaned carb, replaced needle. It starts and runs fine but will back fire, sputter and quit. If I run it on reserve it runs fine. Almost like it doesn't get fuel when gas is on but does on reserve. Any ideas on why this is? Thanks in advance.

 

[fishboy1]

Not sure if its set up similar to a bear tracker....
Check the boot where the carb goes into the manifold. Its common for that boot to wear and a little gap to open between the carb and intake manifold.
Take seat & tank off to get to the mounting bolts, loosen clamp on the boot and shove the carb forward into the boot a bit more, tighten clamp and mounting bolts. If the boot is too worn you will have to replace it.
hope this helps.