Question about Makita DPC8112 16" 81CC Gas Powered Power Cutter Circular Saw

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I have makita petrol stone cutter.it starts but wont take revs

I have a makita petrol stone cutting saw,it starts on choke as normal and then stops.when i put choke off it wont pick up revs.

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  • ajs_thesmidd Feb 07, 2009

    thanks i will try this and see if this helps .

  • ajs_thesmidd Feb 07, 2009

    thanks i will try this and see if this helps .

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It needs more gas adjust the screw on the carburator

Posted on Feb 07, 2009

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Manual required for Makita DPC6400 stone cutter


Go to the Makita home page at:
http://www.makitatools.com/en-us/Modules/Home/Default.aspx. Use the search box at the top right to look up your model. It will show it is discontinued but if you select it you will be able to view or download the parts breakdown and owner's manual.

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Makita petrol stone cutter


Start by removing the wire from the cut out switch to rule out a problem with the switch, if still no spark with a new plug it will be a replacement ignition unit.

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How to start a gas makita 14"concretemetal saw


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I replaced fuel line from carb to intake and now it wont start?


Check the carb fuel stub to see if its seated in the hose. Chech to see if you re-installed the piston underside scavenge hose to the bottom stub of the carb. Check your compression. New is 160 psi, operational but problematic (hard start) 130~140 and completely toast at 90. This saw is easy to flood when compression has fallen off. Cold start, 3 pulls choke on with the throttle trigger locked wide open. At first sputter, put choke in normal run and it should fire by the 3rd pull. If not its flooded. Then remove the plug and with an air hose vacate the cylinder of fuel for a few minutes and try again without the choke or throttle lock set at wide open.

Good luck.

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On the 4112hs stone saw is the ring just a spacer for a blade with a differnt bore size or must it be used regardless


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1 Answer

Makita 6410 petrol disc cutter


First of all, make sure you have followd the correct start up procedure.
(1)Throttle on and locked in start position, (2)choke on and pull a few times. Saw should fire briefly and cut out. (3)Now switch to idle (half choke if applicable) and pull another couple of times. Saw should now fire and run. If you have pulled it too many times in the full choke position you will have flooded the engine. To rectify this you will need two people. One of you should hold the machine steady on the ground with no choke on and throttle fully open. The other should also steady the machine and pull the starter in quick succesion. This could take ten or so pulls but it should start the engine in the case of flooding. Sometimes it will splutter a couple of times before fully starting and it will normally bog down a bit for the first few seconds as it spits out the excess fuel/oil mix.
If you got to point (3) as it shown above, and then the saw wouldn't start, or hadn't fired and died then there could be a few different problems. basic checks are for, clean filter, fresh/clean fuel, clean spark plug (ie, not oily/choked with carbon build up). When checking the spark plug, if it has fuel/oil mix on it then ther is probably aeither a compression problem/air leak or no spark. To check for a spark leave the plug unscrewed but fitted into cap, rest it against a metal part of the saw and pull the starter with the elec switch on. You should see a healthy blue spark. WARNING, do not rest the spark plug near the plug hole as if it does spark it could ignite any fuel/oil mix that is pumped out of the cylinder. I've had many a singed eyebrow from this happening. If there is no spark, check to make sure the cap is attatched securely to the lead,and try repacing the plug. If this doesn't help you will need to get the coil, ht lead and wiring tested.

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