fullchisel
ArboristSite Operative
could anyone tell me what there h and L setting are with the dual port on the 660.having trouble getting mine set right.12,800 on the tach the plug is gray.it seems to lean.
There is no "standard" setting for the dual port on a 660. Set it by ear... Slight 4-stroke sound at WOT with say a 28-30 inch bar. The tach is only to check you aren't wildly over the max allowed (13k).
If you think you are lean, you can also just turn it slighly richer. If lean, it won't hurt your cut times...
I ignore plug color for tuning... It's an interesting diagnostic tool for an unknown saw, but....
will do thanksMine at about 1 1/8... on the H and L.
Cut the tab off your limiter caps and pop them back on.
i will try that and see how i sounds.I'd turn out the high speed screw 1/8 of a turn just to be safe, but I would say at 12,800 rpm's your fine.
ok on a 660 (H) screw.. the screw turned counter clockwise all the way - this being the standard setting.. is this the lean or rich condition?? The screw is "backed" out.. so more fuel is being given correct?
stated another way - rich is all the way in (clockwise) or out (counter clockwise)
There is no "standard" setting for the dual port on a 660. Set it by ear... Slight 4-stroke sound at WOT with say a 28-30 inch bar. The tach is only to check you aren't wildly over the max allowed (13k). QUOTE]
Andy, did the DP covers have different port sizes, with earlier being larger?
I have a pair, and the large outlet version is on my 660 that forstrokes at 13,500. Too high?
The smaller port version is on my 066BB(apples to oranges, I know) and it 4 strokes at 12,500(smaller transfers despite larger bore). This is my milling saw, and I proably should make it a bit richer to keep it cool.
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