I was browsing through the topics and came by A discussion of cat plugs. My bike has some surging so I looked in my relay box and I have a yellow cat plug I saw one suggestion under this topic that said you could try pulling it out and it would run richer and shouldn’t cause any issue. So I pulled it out and took it for a ride and damn if the surging wasn’t completely eliminated. I know it’s got to be in there for some reason probably trying to meet some EPA standard. My bike a 2000 RTStill has the cat. Is running richer going to mess the cat up and if so what would be the best way just to eliminate the cat there are no inspections here in Florida. Here is an excerpt from the topic but I can’t seem to find it right now.
Check the actual manufacture date of your bike. Like my 94RS, if it is an early model Oilhead (mine was an Oct 93 build) it does not have any Cat Code plug to replace. Early Oilheads, (before changes were made to the engine controls) did not use a Cat Code relay like the yellow one mentioned in the article. Early Oilheads operated in an open-loop control mode all the time, which means they always ran slightly richer fuel mix than the later models. The grey relay is for the starter and by installing the pink relay it obviously is the reverse logic of the grey relay, and the starter cranks.
If your bike is an early Oilhead as I suspect it is, there is no yellow relay to replace. Also, pre-yellow relay Oilheads typically did not have surging issues either. Mine never did. I did do the air intake tube mod on my 94 RS and it did improve low/mid-range torque. But it also produces a lot more air intake "honk" which you will hear when you get on the throttle especially if you use a K&N filter like I did with my bike.
Check the actual manufacture date of your bike. Like my 94RS, if it is an early model Oilhead (mine was an Oct 93 build) it does not have any Cat Code plug to replace. Early Oilheads, (before changes were made to the engine controls) did not use a Cat Code relay like the yellow one mentioned in the article. Early Oilheads operated in an open-loop control mode all the time, which means they always ran slightly richer fuel mix than the later models. The grey relay is for the starter and by installing the pink relay it obviously is the reverse logic of the grey relay, and the starter cranks.
If your bike is an early Oilhead as I suspect it is, there is no yellow relay to replace. Also, pre-yellow relay Oilheads typically did not have surging issues either. Mine never did. I did do the air intake tube mod on my 94 RS and it did improve low/mid-range torque. But it also produces a lot more air intake "honk" which you will hear when you get on the throttle especially if you use a K&N filter like I did with my bike.
