1990 Rt 180
Posted March 08, 2010 - 07:43 PM
Posted March 09, 2010 - 07:45 AM
by removing the oil injection it will also require some minor jetting tweaks I believe you'll need to richen your pilot and main jets. I vaguely recall something about the oil n gas mixed together going through the carb makes it leaner vs just straight gas through the carb cause the oil injection inlet on most oil injection bikes happens right after the carb circuits.
Posted March 09, 2010 - 12:06 PM
Posted March 09, 2010 - 02:49 PM
"...oil pump block-off plate for most Yamaha two-stroke engines. Allows removal of the autolube pump when opting for more-reliable pre-mixing oil & fuel, especially on modified engines. Fits all popular Yamaha engines like RD, RZ, DT, YSR, MX and most others. This plate covers the hole where the oil pump is located and is easy to install."
Retro-Cycle-Supply on eBay has them.