Author Topic: Dolmar 5000  (Read 5758 times)

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Offline dolmarfan

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Re: Dolmar 5000
« Reply #10 on: May 25, 2012, 02:08:38 pm »
Thanks.With this setup  the spark plug color electrod is coffee with milk and it doesnt make blue smoke!

Offline 660magnum

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Re: Dolmar 5000
« Reply #11 on: May 25, 2012, 02:29:04 pm »
This one is set just right - can you hear the (4 stroke) flutter when he lets off a little in the cut?

http://www.youtube.com/watch?v=fXjXZi-J17U
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Offline Cut4fun .

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Re: Dolmar 5000
« Reply #12 on: May 25, 2012, 03:29:34 pm »
Why was you adjusting L side?  Was saw having throttle response issues etc?  Where was your carb set up from factory H L without the stops?  Checked by ear or tach?

 If your rev limited stops are still intact you should be safe with the adjustments you are making. I hate to see you burn up a brand new saw fiddling if you dont know where you were at from the get go. 

I've seen stihl 290 310 390 with factory settings and stops in place be only a 1/4 turn out on H side and 2 or more on L side. This was checking after removing tabs and gently seating H L in while checking

Might be something in the service manual on your carb adjustments. 

Dolmar 5000 5100 510 repair manual   http://www.atlanticpowerinc.com/archive/techDocs/dolmar/chainSaw_gas/PS-460_PS-450_PS-510_PS-5100S/repairManual.pdf
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Offline dolmarfan

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Re: Dolmar 5000
« Reply #13 on: May 26, 2012, 09:31:28 am »
The sound is like the video posted by magnum660.
I have tuned the chainsaw by ear, I dont have a tach , and I have tuned the chainsaw without removing the limiter caps.The L screw back 1/2 a turn because I was afraid the mix was too lean.
Thanks for the manual Cut4fun2!

Offline 660magnum

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Re: Dolmar 5000
« Reply #14 on: May 26, 2012, 10:13:22 am »
In the video I posted, that is a big cut for a Dolmar 5000.

Notice the flutter sound in the beginning and end. That is what we refer to as four cycling.

It is desirable to be right at the break over point between smooth two cycling and the four cycle flutter for best power and longevity of your chainsaw.

While cutting wood, the engine should run smooth as in the video but if you lift the chainsaw slightly, the engine should flutter into four cycle.

Everyone is concerned here for with your model of chainsaw, the factory generally set them too lean.
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Offline 660magnum

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Re: Dolmar 5000
« Reply #15 on: May 26, 2012, 10:23:07 am »
This next video is by a respected professional logger from Tennessee, USA (MDavlee)

It is a 5105 Dolmar chainsaw of the same family as yours and the high speed mixture is set correctly.

http://www.youtube.com/watch?v=I8NJknF-Gyw&feature=related

This next Dolmar 5000 is set too lean. There is some distortion in the video and you can hear some flutter but this flutter is the RM limiter in the ignition coil.

http://www.youtube.com/watch?v=I88sZI4KORQ
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Offline dolmarfan

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Re: Dolmar 5000
« Reply #16 on: May 26, 2012, 12:25:48 pm »
I just finish cutting a 40 cm dry oak and the sound semed like the video you posted magnum660.
Thanks again! ;D

Offline Magnus

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Re: Dolmar 5000
« Reply #17 on: May 27, 2012, 07:37:48 am »
A saw is never set correct from factory regardless of brand, model, fuel or handler.

They all need to be set to perform best.
Each saw perform different. It can be a 10-20% difference in saws performance, that is pretty normal regardless of brand or model.
I notice a bit more variation in some models, but the Dolmar saws are very even when compared to other new saws out of box.

The 5000 saws were/are very good and are still made and sold. 5105 and 500 I sell here.
I have sold a couple here, none scored and all run Alcylate fuel (Aspen or similar).
I set the saws a tad rich and ask them to come back after about 10-15 tanks of fuel, I reset it after performance, not rpm or specs.

Plugs and fuel is important. Good stuff is well invested money.
Chainsaw nut!

Offline dolmarfan

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Re: Dolmar 5000
« Reply #18 on: May 27, 2012, 08:28:47 am »
Magnus I have a question: In Romania we have 95,98,99 octane gasoline.Wich one to use?
20 ml oil Dolmar for 1l gasoline is ok?

Offline Magnus

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Re: Dolmar 5000
« Reply #19 on: May 29, 2012, 12:34:50 pm »
I would use 98 and a really good oil in excactly correct ratio.

I use a surringe to meassure and mix what I run in a day. I never store gas from pump. It lasts day's only here...
Chainsaw nut!

 

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