Originally Posted by
InfiniteMotors
I really hate to be that guy but 516 pages is honestly just too much to read.
Can anyone fill me in on the consensus with the carb on these? I remember reading there were problems... Brief lesson on how tuning these is different than usual? I have a 5 port that is really giving me trouble holding a tune. Compression and plug are both good.
Thanks in advance
Most of these engines have a long low speed needle that causes them to tune different. If you go back 10 or so pages (maybe 15) there is a thread I posted recently covering this. If you can't find it, PM me and I will explain it.
Basically set the HSN at .25 of a turn in from flush, LSN start at say 1 turn in fron flush. Now tune only with the LSN. The HSN stays untouched. Also make sure the idle gap is set at .7 - 1 mm. very important for a correct tune.