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Thread: Makita DCS6421 84cc

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    Makita DCS6421 84cc

    Who is running this saw and how do you like it?

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    mtngun's Avatar
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    Lots of people running the 84cc DolKitas. Compression on mine is disappointing, only 130 after setting the squish. Top of bore is suspect. If I had to do over, I'd go for the OEM 79cc top end.
    Eccentric likes this.
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    Don't know yet on mine just put it together. The general consensus is use OEM 7900 P&C $200 instead of BBK $120. However, I got hooked up w/BBK for $80 no brainer for me. The one I used was Tiawan looks as good or better than the NWP kit I have from Baileys for $40 less. If you go with BBK get a set of Caber rings for it. Another member reports additional 15 psi comp. w/Cabers over rings that come w/kit.
    Shep

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    Keep an eye out for a good used 6401 for around 250.. Shouldn't be too hard to find... The stock 6401 runs like a 365 husky. A 7900 runs a lil stronger than a 046 or 372. never ran one with a bb kit.
    Eccentric, jimdad07 and w8ye like this.
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    I agree with Mtngun, the 79cc Mahle fits better and has more compression.

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    Quote Originally Posted by ncfarmboy View Post
    Don't know yet on mine just put it together. The general consensus is use OEM 7900 P&C $200 instead of BBK $120. However, I got hooked up w/BBK for $80 no brainer for me. The one I used was Tiawan looks as good or better than the NWP kit I have from Baileys for $40 less. If you go with BBK get a set of Caber rings for it. Another member reports additional 15 psi comp. w/Cabers over rings that come w/kit.
    Shep
    Any idea of the source for the the caber rings? I also added the 84cc BB kit to my 6401 and comp is around 150. Have to admit though it has less than 1 tank thru it. It sure does scream though.
    Bob
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    w8ye's Avatar
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    150 is pretty good.

    You are not going to improve on that with a Caber ring.
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    I agree with w8ye but if you just got to have the caber ring check with Gregg at Bailey's CRF 5412 should fit it. $14.99

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    The best thing you can do with the 84cc kit is to get rid of that thick base gasket. My saws was above .040 with it in place. No, it wasn't the gasket for the Solo! I think it is down to about .025 now.
    346's 357's 359's 372's for sale- PM me if you are looking

    Quote Originally Posted by mweba View Post
    Ya sounds like a guessignosis to me
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    Quote Originally Posted by nmurph View Post
    The best thing you can do with the 84cc kit is to get rid of that thick base gasket. My saws was above .040 with it in place. No, it wasn't the gasket for the Solo! I think it is down to about .025 now.
    The Dolmar OEM crimped steel gasket # 965531160 is $1.30 at Edge & Engine.

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    It is still too thick for the amout of squish built into the BB kit.
    346's 357's 359's 372's for sale- PM me if you are looking

    Quote Originally Posted by mweba View Post
    Ya sounds like a guessignosis to me
    Experience is what you get when you didn't get what you wanted!

    It's as easy as bobbing for apple sauce!--Neal Boortz

    Weak people can never do the right thing! -- WatsonR

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    Quote Originally Posted by nmurph View Post
    It is still too thick for the amout of squish built into the BB kit.
    nmurph, these guys that cut their own head gaskets out of coke cans will that thin aluminum hold up?

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    Some just used Yamabond with no gasket
    Dolmar 115i, 6800iH
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    Echo PB-2400, SRM-2100, SRM-2400, TC-210

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    w8ye, just read that yamabond,hondabond and threebond are all the same made by 3M. It must be some pretty good stuff since it's made by 3M.

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    Quote Originally Posted by JimmyT View Post
    I agree with w8ye but if you just got to have the caber ring check with Gregg at Bailey's CRF 5412 should fit it. $14.99
    I used kit rings in mine. Haven't done comp. check. Haven't run it but 2 min. Also check w/sponosor Northwood Saw $4.99 ea. 54mm x 1.2mm. No cyl. gasket on mine used 1194 Threebond or equivalent.
    Shep

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