carlos Posted August 3, 2016 Report Share Posted August 3, 2016 My 2016 did not come with a washer on the fuel mixture screw. I ordered a complete Mikuni bsr 33 rebuild kit (42$ u.s.from e-bay) and it did come with a washer, spring and o-ring. Quote Link to comment Share on other sites More sharing options...
brianrch Posted August 4, 2016 Report Share Posted August 4, 2016 Had some difficulty hot starting and then one day when it was really hot, it started loading up at idle. So i turned the fuel screw in 1 full turn (now 1 and 3/4 out) and it made it way better. Another rider told me to not use heavy oil and/or over oil (i used bel-ray before which i love for mx) on the air filter because it will chock it and have slow response. I switched to a lighter/thinner oil and now the bikes starts easy, runs strong, the map settings make a difference so all good now Quote Link to comment Share on other sites More sharing options...
carlos Posted August 12, 2016 Report Share Posted August 12, 2016 Now running a 125 main jet, needle clip at the bottom position, bike runs very strong. Fuel mixture screw at 2 and half turns out. Still hit and miss with starting the bike. Anyone notice if the fuel mixture screw makes a difference in starting? Quote Link to comment Share on other sites More sharing options...
pudrev3 Posted September 3, 2016 Report Share Posted September 3, 2016 Mine struggles after big fall ..... When I try to kick it it is hard to turn engine over I have to kick fast a few times to turn engine over properly hard to explain Quote Link to comment Share on other sites More sharing options...
carlos Posted September 6, 2016 Report Share Posted September 6, 2016 If i drop my 4t i have to hold the throttle wide open then give it a few kicks, usually starts in 2 or 3. Noticed since turning up the idle it starts a lot better. Quote Link to comment Share on other sites More sharing options...
steve fracy Posted September 9, 2016 Report Share Posted September 9, 2016 Mine struggles after big fall ..... When I try to kick it it is hard to turn engine over I have to kick fast a few times to turn engine over properly hard to explain Just stumbled onto this post while browsing. I would suggest contacting Billy T through the forum on here. Over the years, both my son and I have received invaluable advise on carb setup on our Beta:s. especially the 4t Beta. Billy knows that carb inside and out and when I was riding a Beta 4t he really helped me transform the bike into what I wanted it to do. It was a huge help/ Steve Quote Link to comment Share on other sites More sharing options...
lineaway Posted September 12, 2016 Report Share Posted September 12, 2016 Mine struggles after big fall ..... When I try to kick it it is hard to turn engine over I have to kick fast a few times to turn engine over properly hard to explain Quote Link to comment Share on other sites More sharing options...
lineaway Posted September 12, 2016 Report Share Posted September 12, 2016 I would check the intake boot as they tear easily. Quote Link to comment Share on other sites More sharing options...
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