What is the correct shim stack thickness for the disco motors ?? .65 ??

Can you guys give me a good starting point as to where the idle gap screw and lsn should be ? im trying to break this thing in gotta get it to idle ?
It is a Cody King edition.

Leave the LSN alone open idle gap to around 1.5mm, maybe a bit more..

I typically use the radio, and adjust the trim until it will continue to run, for the first few tanks..

Well I have already messed with lsn. I'm a dummy, so where is factory or what will get me close

Factory for both HSN and LSN is flush.

ok thanks i got it running ran about 7 or 8 tanks through it. My problems were fuel lines. i think the factory place for the lines on the dnx408 are to close to the pipe.

Actually, what I told him is true, he can put a 5 port sleeve in a 7 port crank case. I shouldn't say "interchangeable" because the 7 port sleeve will not fit in the 5 port engine case. The flange on the 5 port sleeve is 22.85 OD, and the 3 or 7 port are 23.00. Sorry for the confusion.

.60

Thank you pitpop !!

how much fuel are you guys generally running before these motors are losing their pinch ? I think have around 1800cc through mine. it still has a bit of pinch.

discovery
 

I finally got to run the buggy at the local track properly with the 5 port Discovery in it. I had put the new head button and LSN in it before I left and all I can say is WOW! The thing was insane! :nod: I have about 3/4 of a gallon threw it and left the HSN at about flush or a little in from flush and turned the new LSN in until it came alive. The throttle response was almost instant and it has a lot of bottom and mid-top with the 2058. The sound it made was awesome too..... Braapppp! Can't wait to try the 2013. I'm running byron's 30% /9% with the #5 plug at almost sea level in cool dense air. Very impressed!

I had one wait until 1.5 gallons to drop its nuts and another drop them at .5 gallons. Too many factors to say when it will finally break-in..

well i put another about 500cc through it still has some pinch. I am just anxious to see how it feels broken in. It has quite a bit of power now. It has close to 3/4 of gallon ran through it

.75 gallons is very close.. I think you can lean it some with no problems.. just don't death rev it and run out of fuel, you'll be fine :nod:

My Suggestion was going to be to put a slightly rich race tune on it and let it eat.. LOL

Hi,

Got a five port orion and think one of the bearings may have gone. I'm hearing an odd noise when reving the engine. Kinda sounds like cicadas chirping. Odd I know but I can't think of any other way to describe it. The engine idles smoothly enough and generally sounds Ok aside from the odd noise. The only thing I can think of is that a bearing is gone. The pitch of the noise changes depending on the revs. Any thoughts?

Thanks.