McCulloch Chainsaws https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=cfrm Recent Posts en-us Sat, 16 May 2026 23:28:15 UTC 5 support@outdoorking-forum.com.au (OutdoorKing Repair Forum) UBB.threads https://www.outdoorking-forum.com.au/forum/images/general/default/rss_icon.gif McCulloch Chainsaws https://www.outdoorking-forum.com.au/forum/ubbthreads.php?ubb=cfrm M3616 wont start https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/121651.html#Post121651
Below 70 PSI: This is generally considered too low, and indicates a significant issue like worn piston rings or a scored cylinder. It's unlikely the saw will start or run well at this compression.

90-130 PSI: This is a good range for a smaller 2-stroke chainsaw, and it should start and run reliably if other factors (fuel, spark) are also good.

If your compression is significantly below the recommended range, common causes include:

Worn piston rings

Scored cylinder wall

Blown head gasket (less common on small 2-strokes, but possible)

Crankcase seals leaking

This Chainsaw has some bad reviews online https://www.productreview.com.au/listings/mcculloch-m3414-m3616-m3816-m4218-m4620-m3616

Some people are just buying a new Giantz 62cc Chainsaw $135.with free delivery online as most shops these days
just want to sell people new saws.and won't fix older saws. and these McCulloch saws are usually discontinued making parts
more difficult to find.

As Bruce mentioned if compression seems a bit low," it's likely you have a compression issue that falls below the usable range. You'll likely need to investigate the piston, rings, and cylinder for wear or damage.

Cheers
Max.

]]> Tue, 29 Jul 2025 10:01:09 +0000 maxwestern https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/121651.html#Post121651 McCulloch chain saw/outboard parts ID. https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/118680.html#Post118680 Will have a look on the Facebook page and see what I can find out.
Cheers.
Maurice.

]]> Mon, 14 Aug 2023 11:33:27 +0000 Mops Mowers https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/118680.html#Post118680 MacC CS420T fuel flow problems? https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/107996.html#Post107996 https://www.bunnings.com.au/mechanic-in-a-bottle-120ml_p0169259

Sounds stupid - mechanic in a bottle. I hate snake oils as much as the next person, but once I find one that actually works, I recommend it.
I have soaked diaphragms in it neat and neither metering or fuel pump diaphragms hardened or were damaged (old ones became slightly more plyable but not perfect)

I had a badly gummed up talon trimmer carby - cleaned as well as I could. Would then run on choke, but not off (even idle - non adjustable carby). Tried some sort of liqui Moly carby clean additive - did nothing.

Drained fuel and put in this stuff and within 5 minutes it would run off choke and rev up reasonably (bit boggy still)

Just today, I suggested a friend get a bottle for his sanli which would only run well on choke, and would stutter and spontaneously stall at idle or part throttle.

He added a bit more than prescribed ml per L to the tank, shook back and forth - I listened over the phone as he started it and it started surging badly - told him to be patient. 3 minutes later it suddenly came to life - idle went smoother and up (he put idle up before to stop stalling). Would accept throttle fine.

Will this fix a carby that has sat for 10 years full of stale fuel - No. Will never replace a carby teardown, but it get rid of the stuff you can't reach


Peter Brock reckoned his energy polariser made a 'shi*house car good' - this additive makes a Shi*thouse carby passable, and reasonable ones better

Unfortunately, it won't help my 'new' ryobi chainsaw. Guy brought it over and straight up told me he was an idiot and grabbed the wrong fuel can. Piston not awful, but its not so good.


Edit - should also say I have no vested interests in the manufacturer (B3C fuel or something like that) or GA spares (who distribute it)

]]> Sat, 22 Aug 2020 13:37:32 +0000 Tyler https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/107996.html#Post107996 Mac 310 https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/103196.html#Post103196 Not sure what to do with it now, I told the bloke I doubted I could get the bits to fix it. I fixed his other saw and he went away happy so this will end up sitting here for a long time gathering dust. I am amazed at how easily it starts and runs.

]]> Fri, 24 Jan 2020 20:30:49 +0000 NormK https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/103196.html#Post103196 Mac Super 250 https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/99255.html#Post99255 It starts and runs with carby starter...... so points and coil are good now....
I put a kit in the Tillotson HL 63G carby, but I must have missed something.
I see on youtube some excellant videos on installing the kit and learning about this fantastic carb... so many models....
Even new Chinese copies for $16 or $20...... so prospects are looking up.
work to do
speedy


]]> Wed, 12 Jun 2019 10:15:00 +0000 speedy https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/99255.html#Post99255 McCulloch Eager Beaver Carbie https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/95656.html#Post95656 these and see how it goes.

As a mate pointed out to me - these are what you find in just about every high school technology/physics classroom. The meters get absolutely thrashed from day dot, yet schools get a couple of years out of them.

For $10 (paired with my little use of a meter) it's worth a shot

]]> Thu, 17 Jan 2019 14:33:08 +0000 Tyler https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/95656.html#Post95656 Carb issues MAC 3818 https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/88032.html#Post88032
Originally Posted by Aussie280
Hi Guys, a bit of an update I managed to source a WT-774 carb in UK via good old eBay. I'd still like to replace the Valve check 0008004, and retainer, check valve 0009008 on the Zama carb. Has anyone removed the Welch plug before on these carbs..having trouble finding these parts too. How do you deal the Welch plug? It's oblong shaped.
Well looks I am running late on this one.

Don't the retainer as it is NLA. As for welch they just a thin piece of aluminum and a sharpen pin punch will remove it. Just be careful not the damage the under laying surface.I actually got a set install punches for installation those bango welch plugs along with the triangle shape ones.
[Linked Image from zamacarb.com]


]]> Sat, 30 Sep 2017 23:51:57 +0000 AVB https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/88032.html#Post88032 McCulloch Parts https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/87954.html#Post87954
Are you able to supply whole carburettor for Mac 3818 chainsaw 11-600038-29. It's either Zama c1q-m36, Walbro wt-774, Zama c1q-m36, c1q-m33. All are interchangeable. Regards Kev
.

]]> Sun, 24 Sep 2017 20:17:33 +0000 Aussie280 https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/87954.html#Post87954 McCulloch Titan 57 60015102 https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/87560.html#Post87560 HERE you will see the manual for your chainsaw.

Note that it does have an automatic oiler as shown in the drawing item number 14 on page 7. You will also see item number 31 is the choke rod on page 9. cheers2

]]> Thu, 17 Aug 2017 08:37:29 +0000 Bruce https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/87560.html#Post87560 Access https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/83868.html#Post83868
]]> Sun, 19 Mar 2017 16:44:57 +0000 wirraway https://www.outdoorking-forum.com.au/forum/ubbthreads.php/topics/83868.html#Post83868