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lrd adjustable pipe
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Posted by: Showcase

i just got my 250r...and it leaks oil out from right where the pipe connects to the engine...and where its adjustable? is this ok? is it affecting my performance at all? and after a couple hours of riding it really leaks and makes everything gooey and dirty =x thanks for any reply.

Posted by: trx250r180

try resealing the 2 areas with copper permatex silicone,has to be high heat copper so doesnt melt,if leaking rally bad your pilot jet ,or main jet may be one size too big,dropping one size smaller may help with excess oil

Posted by: Scottt89

Mine didn't leak it out of the adjustable portion, but did out of the head. I bought one of those aftermarket Flanges and it fixed the issue. They were on sale for like $35 at RPM, not sure if they still have them.

Posted by: Showcase

i dont have any pilot jets, but i will drop my main jet down to 330 and see if it makes a difference.....and i should silicone the pipe together? wouldnt that just ruin the adjustable part?

Posted by: redrooster310r

i jus put my 350 pv 2 gether and i hav an lrd adj bb pipe +silencer... its runnin a lil rich for breakin....leaks out pipe joint and silencer seams.... im leanin out soon .... maybe thats ur prob..... too rich on top end. lrd says rtv silicone the seams. make sure ur not too rich..... power loss of 18%. be carefull.

Posted by: Showcase

it does seem really weak, but this is the only 250r i have ridden, how would i go about making it leaner? just put a smaller jet in it? theres a 340, ill drop it down to a 330 or 320, thatll do it? or does other stuff need to be done, thanks.

Posted by: trx250r180

what kid of carb you running?,those jet sizes sound huge,i was running 38 air stryler ddj needle,50 pilot,170 main on my 265 lrd engine,and my 310 kit,on a 35 carb i think was like a 158 main jet

Posted by: Showcase

it is a 38mm mikuni carb. thanks.

Posted by: redrooster310r

go to www.duncanracing.com they have a kehin carb tuning section....this will help you. even though its a minuki. sounds too rich .... but be careful less fuel = less lube for motor.