Originally Posted by
grizz1
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.
Originally Posted by
bigmatt
all depends on carb model. a gen5 or gen5.5 will have a red go on the front,be all black with aluminum end. If that is the kind you have it is very easy to tune, providing no air leaks. If you have an air leak you will never tune it. So here go's. hsn from flush 1/2 turn in/lsn from flush 1.5 turns in,idle gap about 1mm. engine should fire right up. also use an os p-3 plug turbo. these engines I have found like the hot plugs. So let us know what you have and how it worked out.
Can't thank you enough for the fast responses. I'm going go get right on all of that and also reseal the backplate/carb bolt.
I'm currently switching between P3 and P7 and using up the rest of this 25% fuel. Needles are close to your recommendations but I'll have to measure the idle.
I'm trying very hard to decide on getting a new engine or really doing what it takes to get this dialed in. I bought it used and while it is a runner, I still just don't trust it. It loads up and stalls frequently if it idles for more then ten seconds or so. Bummer
Thanks guys!