Discussion in 'Chainsaw' started by Mastermind, Jan 16, 2012.
Would seem like walbro probably has a spec sheet on each carb that would provide this info...???
What about a 390 carb?
Yeah Keith, the 390, or 395 carb will work. A 288 air filter elbow is needed to connect the HD filter....
I am a offtopic but here goes:
Tuning dolmar 5000 with a limited coil.Tuning to keep under the rev limiter(13500rpm) requires H screw 3,5-4 turn CCW and my tach is still reading 13200rpm.I dont think I have a leak.Is this ok?
Those small saws tune sorta weird. Less airflow means more turns out on the H screw.
I would find the limiter........then lean it out a little more at a time, checking the tune in the cut. As you lift the pressure it should still burble a little.
Without the rev limiter, that saw would likely still four stroke at 14,500 or so.
Good to know. I just put one together and had to dig the epoxy out of the H screw hole. I will test next week and see if it wants more fuel.
I've run a lot of big saws in my younger days, and my 79 is as good if not better than any of them!! Just awesome to use!! Sheer Joy!!!
Update, I still have this saw in this tread. Its still doing very well pulling a 32" skip tooth chain right now. I need to get some video of it since its what 3 years old now or something.
Good to see you here.
Yea been real busy first time back here in a while. Work has me all over the world and the US.
Nice to see you pop in. You still got that 066 I sold you?
should pressure/vac check, sounds like an air leak. L/H should be 1 and 1/2 turns out.
Here's an option on a 7900 carb, check out post #66. - http://www.arboristsite.com/community/threads/dolmar-7900-carb-upgrade.229528/page-4
Well a someone ran it an offered a Sig 229 DAK and I could not refuse.
I would have kicked your tail if you didn't trade for that.
Wish I had any kind of stronger wood to cut to properly check my PS7900 out.
Hey Randy, how do these 7900's compare to a good running 064 that you've done? Ever had them side by side?
Can you tell me where to get that piston please. Thank you
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