Question about Makita DCS51018 18" 45cc Chain Saw 2 Cycle

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Makita DCS51018 Chain Saw Oiler

Chain saw is new. Oiler not working. No warranty. Bought as is. Would like to fix myself. Thanks

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Before you tear apart and purchase a new oiling assembly. Remove the sprocket cover, bar, and chain. Above the bar studs there is a horizontal groove the oil should flow from. If it is packed with sawdust clean this out. After cleaning or it is clean start the saw with all of the items removed. You should see the oil flowing. If there is no oil the oil pump is bad or clogged. If it flows your bar is clogged. Clean the oiling hole on the bar and groove. Hope this helps.

Posted on Feb 27, 2009

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OK found a complete oil pump for this saw, part number is 181245250 and if you would like to download a copy of the breakdown go to and in the bottom go to Makita Canada and you can find it there. I don't know why they don't have it in the US version but that is where I got it from Good Luck and let me know if I can be of any more help

Posted on Feb 22, 2009


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Automatic oiler problem since date of purchase. Remedy?

No found recall for this. link below not your exact model, may help on repair of oiler
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I have a 33cc makita chainsaw and the oil is not coming out but the reservoir is filled but it's not going on the chain how do I fix

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What is the gas ratio for a 2003 18" makita chainsaw

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Use a 50:1 mixture
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Sep 09, 2011 | Makita DCS51018 18" 45cc Chain Saw 2 Cycle

1 Answer

Will it harm my Makita Chain Saw to store it on its side when not in use? If I stand it the right way up the oil leaks out.

There is no problem storing it on its side, you could also sit it in a tray to catch any oil, it is not uncommon on many machines to find chain oil under them after they have been left.

Jan 26, 2011 | Makita DCS51018 18" 45cc Chain Saw 2 Cycle

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Try pushing the primer 8-10 times hold the throttle wide open and turn choke too full.when it starts it will probably quit turn choke to halfway and start again.should stay running.If that don,t work carb needs to be rebuilt or replaced.

Nov 29, 2010 | Makita DCS51018 18" 45cc Chain Saw 2 Cycle

1 Answer

Had difficulty starting chainsaw DCS4610 for the first time. Think it was flooded. Problem now it wont idle.

Is this a new saw? If yes return it or at least ask for a recommended repair facility. Your saw is actually a Dolmar (owned by Makita) and a fine saw. In order to meet EPA requirements they are set very lean (many 5100s seize with factory settings). To protect your investment and not invalidate your warranty I recommend it be adjusted by the
professional recommended by the merchant where you purchased it or one recommended by Makita.
The starting procedure is probably similar to this:
Start Procedure
  1. Ignition on/off to on.
  2. Set compression release – optional step even if saw is equipped with a compression release.
  3. Pull (close) choke, set fast idle (done when choke closed on some saws); pull starter and listen for an attempt to start. once heard (usually two pulls; no more than 4).
  4. Set compression release – optional step even if saw is equipped with a compression release.
  5. Push (open) choke pull starter until it starts. (usually first pull).
  1. Ignition on/off to on.
  2. Set compression release – optional step even if saw is equipped with a compression release.
  3. Pull (close) choke, set fast idle (done when choke closed on some saws) – Do not pull with choke closed.
  4. Push (open) choke, pull starter until it starts. (usually first pull).
Most new owners miss opening the choke after it tries to start or do not hear the pop when it does and flood the saw.

If you have more questions or need additional help please reply below and I will get back to you. Thank you for using FixYa and Good Luck. HTH

Apr 09, 2010 | Makita DCS51018 18" 45cc Chain Saw 2 Cycle

1 Answer

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I fear you are correct about the oiler problem. I see a lot of oiler problems on these saws. Sooner or later Husky will have to address it. Ask the dealer about modifying your oiler; the 350 has an adjustable and might fit 1 or both of these saws. I think Husky needs to admit the nonadjustable is a mistake, and come up with a fix.

If you want to do some research start with the IPLs here:
Enter the 3 digit model number (no XPs, Es, just the numbers)
Serial number decode – useful when downloading IPLs and Manuals
06 1500198
06 = year produced – 2006 (single digit before 2000)
15 = week produced - March
00198 = 198th unit Husky produced that week
Please post back (below) with what happens at the dealer. Take your buddy and his saw with you! Good Luck. HTH
If Husky starts modifying all these with 350 oilers I want compensation...LOL

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Hi, oil is flowing freely from the holes at the front of the saw.

Did Makita give any oil pump adjustment? Most gas saws have them. Underneath below the oiler hole.
I am going to allow this to close we can still talk to one another.

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Hello Gordon; We need the complete make, model, and serial numbers with every question in order to fully help you. The IPL for the DCS510-18 can be found on this page: Fuel line routing2.gif while pictured isn't clear. In the US of A these are red and called Dolmars. A local dealer may allow you to look at his shop manual if one exists. Sorry to not be helpful. Lou

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Sep 11, 2009 | Makita DCS51018 18" 45cc Chain Saw 2 Cycle

1 Answer

Chain pitch

Chain pitch is the spacing of the rivets on the chain. The saw's sprocket has the same spacing. The normal pitch is 3/8"

Aug 27, 2008 | Makita DCS51018 18" 45cc Chain Saw 2 Cycle

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