Can you remove the baffle to get more bottom end out of the 50 and if so will I need to re-jet it? I'm just trying to get some more power out of the thing. I've already taken out both restrictors and the spark arrestor plug. Thanks

 

i put an fmf pipe on my daughters old lt50. made a big difference.

 

Have you removed the intake restrictor (in the pipe between the carb and head). It is a b**** to remove, but I was able to jet up a little and it really woke the little machine up!

 

Yea, both of the restrictors are out, but I haven't changed the jetting at all. Should I?

 

Re-jetting seemed to help a little. I don't know much about what was changed, I had the dealer do it. These little machines will never be screamers, but they are awsome for the little people!

 

Hi, what two restictors are there? I know about washer in exhaust, where is one in the intake? I didn't find one in there? Any info. to make my kids lt50 faster would help! Thanks!

 

If you take the elbow intake off and look on the head side, it's right there. I looks like a nickle with a slot cut in it. I cut mine out with a dremel but some folks have had luck with heating up the intake with a torch and removing the restricor out with a flat head screw driver.

 

I took out both restrictors and milled the head down 1,3mm and removed the airbox lid, rejetted to a 75 main, HUGH difference.

 

Yea, I took Matt's advice (kinda) and I cut three inches off the muffler insert and then drilled holes in the rest of the insert: drilled 4 5/16 holes in the airbox lid: took out the first pilot jet and jetted to a 65 main. I tried a 75 and it ran like crap so I went to a 70. It got better but still bogged a little on top end. So I ended up with a 65 with the fuel/air mixture screw out 1 and 1/4 turns out from closed. I also moved the needle clip to the center position. I am figuring that it goes about 3 maybe 4 mph faster and it def. has more bottom end. Thanks guys for the help.

 

The airfilter is very restrictive. If you could manufacture a freer flowing one you would get some more power. You would need to rejet.

The compression ratio is 5.9:1. It needs to be raised to 8 at least to get decent power out. Since it is air cooled and has not valves in the head, this would be a simple matter of planing the head or filling in the crown in the combustion chamber. I am not sure what has to be done since I never took the head off mine. It takes a small amount of measuring and calculating to get the compression ratio right. You do not want it too high.