For no reason popping and backfiring on decel started bout 2 months ago. A little bit at first, then got worse. The idle became unsteady, and the cold start high idle started to fluctuate. A bit of a hesitation off idle really started to annoy me. I had done nothing to the skoot and started to think about the forum member's thread about the intake leak.
PIC OF NOT QUITE FULL O-RING SEAL ON MANIFOLD...
AT MY FINGERTIPS ARE THE POSTS THAT PREVENT THE THROTTLE BODIES FROM SEALING AGAINST THE MANIFOLD SURFACE, 5 IN ALL...
GETTIN READY TO MACHINE OFF THE POSTS...
MACHINING...
THE THROTTLE BODY MATING SURFACE WAS NOT FLAT AND TRUE SO SOME FINAL BLOCK SANDING MADE IT STRAIGHT...
AFTER ABOUT 20 SECONDS OF SANDING THE INTAKE MANIFOLD, IT'S ALSO NOT STRAIGHT AND FLAT...
ABOUT 45 SECONDS MORE...
FINALLY, A FLAT SURFACE!!...
MORE TO COME...
RACNRAY