need help bad

[kit bazile]

i just rebuilt my motor and now im going to tell you what stuff i got dune to the bike i have a 38mm carb a lrd stage 4 exhaust with the cylender board 1 over 68mm over i think i have boysten reed v force reed b.ock if that makes any sence. what do yall think my pilot jet and mail jet should be right now i have a 58 pilot jet and a 195 main. this is all i know if you can half way help me i would appreciate it .if any body reads this from louisiana tell what you running and ill go from there

[Dave83]

Is the bike running?What does the plug look like?Ill bet its rich.Do a wide open plug check and see if its rich or lean.Those jets seem a liitle big to me,but Im not sure how much 300 ft of altitude difference will make.I would start with 170 main and a 50 or so pilot.Thats what Im using on a 310 engine at about 350ft alt

[Aceman]

I'd start a little fatter than Dave suggested, you're running a smaller displacement motor which won't pull as much vacuum through the carb as a 310. My 310 is using a 52 pj, middle clip, and probably a 175 main as soon as I dial the jetting in for this rebuild. Duncan Racing has good jetting info in their tech section.

Forgot to add, this is around sea level at 50 degrees.

[86 Quad R]

before doing any jetting you need to make sure the the float is set properly and that the float needle is shutting the fuel off. also make sure that all the reed petals are seal good against the age.

i'm in sentral missippi and am not very much higher in elenvation than you.

i'd start at about a 45-48 pilot focussing on getting the pilot cicuit tuned in first and then set the main at about 170 and do a WOT plug chop on the main jet and go from there.

[kit bazile]

dave 83 i had a a 58 polit and a 172 main and kept blowing rings off of pistons and the plugs was like someone was painting them with gray primere spray paint the plugs now if you look close you can see a little brown contient to them on the weight porslon part in the center

[Aceman]

You better do a leakdown test if you're jetted that rich to get a tan plug. It sounds like you have an airleak.

[86 Quad R]

something deff aint right. one post he's blowing oil from the tail pipe and another he's lean on the plug color. :eek2:

[kit bazile]

the dude from mississippi call me please 1-225-910-1748

[86 Quad R]

pm sent. :cool:

[kit bazile]

pm sent

[mineralgrey01gt]

Originally posted by 86 Quad R
something deff aint right. one post he's blowing oil from the tail pipe and another he's lean on the plug color. :eek2:

lol, i think that oil was just the oil used to lube up the cylinder, during the rebuild

[kit bazile]

it was i just read another foram and the same thing happens to them when they run the ratio i run in mine

[Dave83]

Sounds like an airleak to me also.Something else to do before you go much further,check the compression and make sure your running enough octane.I know its not causing all your trouble,but you may have some detanation problems too.As for the airleak,if you cant do a leakdown test,start it up and spray some wd-40 or starting fluid around the reed cage and carb boot.If it revs up,theres your leak.It still could be sucking air around the crank seals,but at least you can eliminate the carb and reed gaskets.

[kit bazile]

how do you do a leak down test on these things

[Aceman]

http://www.exriders.com/vbb/showthread.php?s=&threadid=265369&highlight=leakdown

If you plan on keeping your R, it's definitely worth your time to make one. Those blood pressure bulbs are a pain in the *** to find locally, I had to buy mine off Ebay.

1.25" white Sch. 40 pipe is about the right OD for the intake boot when I was running a 36mm carb.

[kit bazile]

thanks man im going to get this stuff tomorrow and leak test this thing and ill let yall know what i find thank yall

[machwon]

I would run a 58 pilot, 178 main with a DGH needle in the middle. What needle is in your carb?

[kit bazile]

found two visible leaks and intake boot and around the botom of my cylender gasket just a tiney leak there i got that fixed now i need a intake boot anybody have any they wont to getrid of need one bad thanks to everyone on here for helping me im learning alot on here