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<blockquote data-quote="dlw6767" data-source="post: 196650" data-attributes="member: 3508"><p>Just picked up this 99 rm80 for my grandson and the guy said it had been bored out to a 110. Said it ran great was using 32/1 fuel mix. I brought it home and found it wasn't running great, it was boggy at part throttle, did I some research and ckd a few things. I pulled the rod #39 out of the slide to see where the circle clip was. It was on the second lowest notch, so I dropped it to the last one figuring it needed to be richened up. Float was high so I reset that and ckd the main jet for size, it is a 012. I got it back together and first kick fired right up, idles great, warmed it up then went to the air mixture screw. it was at 2 turns out. I started to turn it in and I could tell the motor was getting rich quick so I went to 2 and then 2.5&nbsp;&nbsp; Sounded pretty decent took it out for a spin, ran much better, most of the bog was gone but it didn't really want to go at full throttle,pumped out a lot of smoke, telling me it was too rich on the top end. So here is my questions...How far can the mixture screw be turned out before it wont stay in. Can i go 3-4 without it falling out when im riding.Should I decrease my main jet by a number or pull the rod and go back on that notch. I can figure it out but was hoping for a carb guru to help me hit the nail quicker. Thanks for any help and letting me join!</p></blockquote><p></p>

[QUOTE="dlw6767, post: 196650, member: 3508"] Just picked up this 99 rm80 for my grandson and the guy said it had been bored out to a 110. Said it ran great was using 32/1 fuel mix. I brought it home and found it wasn't running great, it was boggy at part throttle, did I some research and ckd a few things. I pulled the rod #39 out of the slide to see where the circle clip was. It was on the second lowest notch, so I dropped it to the last one figuring it needed to be richened up. Float was high so I reset that and ckd the main jet for size, it is a 012. I got it back together and first kick fired right up, idles great, warmed it up then went to the air mixture screw. it was at 2 turns out. I started to turn it in and I could tell the motor was getting rich quick so I went to 2 and then 2.5 Sounded pretty decent took it out for a spin, ran much better, most of the bog was gone but it didn't really want to go at full throttle,pumped out a lot of smoke, telling me it was too rich on the top end. So here is my questions...How far can the mixture screw be turned out before it wont stay in. Can i go 3-4 without it falling out when im riding.Should I decrease my main jet by a number or pull the rod and go back on that notch. I can figure it out but was hoping for a carb guru to help me hit the nail quicker. Thanks for any help and letting me join! [/QUOTE]

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