spudulike

Thought you would have it up and running by now, is it worth porting:thumbup:

Just measured one, it is definitely M10 (10mm dia) the thread is finer than 1.5 and 1.25 and a M6 1.0 tap was a snug fit when meshed with the thread so I am thinking M10 1.0 thread and am pretty sure (90%) this is right but just don't have the tap and die to test it. That is pretty fine - you will need the square bottoming tap to get the thread to the bottom of the hole, also be careful when drilling - Husky are clever and have a small decomp outlet hole that stops broken decomps entering the cylinder - a very smart move:thumbup:

Yes, MS200, good solid little saw, lots of grunt for a small light saw. Technically the weak points are the carbs, clutch side cover and a couple of components in the chain brake but they are easy to work on once you have had one apart, spares are very readily available and they have more grunt than most other toppers. Some of the Japanese ones are lighter but just don't have the same torque and cutting power. 12" will let the saw keep revs up even in the hardest wood, 14" is a good all round bar - never used one with a 16" but can understand the earlier comments. I am not a climber - just repair and tune saws:thumbup:

Yeah, the reason I said this is that I have flown them, they are bloody hard work compared to Harris Hawkes who like working, all buzzards wan't to do is sit around until a lump of dead meat comes its way:lol: I have also seen roadkill taken off the road by both Kites and Buzzards right in front of me. I think the only thing wrong with Planet Earth is mankind, the planet would find its natural balance very well without us, whether it would be how we want it is another matter - I recently heard that the scientists now believe the demise of the Bee is down to insecticides and not mites....:001_rolleyes: Rabbits - where did they come from........The Romans introduced them and look where we are now:thumbdown:

Anyone notice how boggy it was at the start and how peak revs and power developed during the cuts he made. I have noticed that the ported saws I have take a cut or two to liven them up. Reckon that this one needed a few cuts to reset the electronics to a hot and ported setting!

Opening the throttle will help you get to the maximum a bit faster but probably wont help you register higher compression. Do yourself a favour and measure a modern low hours saw so you can get a bench mark or ask the owner what he generally gets on good running saws. All gauges are a bit different, some register just a whiff of compression and some register nothing on small engines and only work on cars etc. I have three gauges and all register different amounts but generally stick to using one - typically the Gunson hi gauge and get 150 - 170psi on fresh run in engines with this gauge. Worth getting a benchmark before worrying. The ring could be gummed up but if the saw runs, it is unlikely.

Nature is a funny thing, if the population of buzzards say grew 100 times overnight, they would eat all the available food and then starve to the point that the population drops back to a level that the available food would allow them to live. You generally find that when man gets inolved with trying to control nature, it all gets messed up. Look what happened when the Chinese killed all the birds because they were eating their crops, the level of insects grew to a point that it decimated their crops. Japanese Knotweed was an introduction to the country by the Victorians and look what happened there:thumbdown:

It is a bit low, what gauge have you got and how are you doing the test? I normally put the saw on the "fast idle" start setting and give it 5-6 brisk pulls to get maximum reading. The saw should be cold but be fuelled and pulling fuel through. The first single pull should produce a reading of around half the maximum reading after 5-6 pulls otherwise the ringa are probably suspect. The Chinese saw may have a smaller starter pulley making it feel as though it has more compression.

Yes, sorry but modern farming has decimated the Lapwing population. I am old enough to remember fields with hundreds of them in but now rarely see them. Buzzards have only really increased in my area over the last 5-8 years, the Lapwings have been missing long before then. Think most of the Kites and Buzzards round my way prefer road kill - Buzards are particularly lazy birds!

That sounds like it is low on compression and with the decomp being used, the compression isn't enough for combustion. How is the cutter when it is warm - difficult to start? Perhaps time for new rings or new piston and rings!

Think it is so no one will ever repair one, the 290/390 is no better, it is one saw I feel like turning away - my face drops everytime I have one in.

345 Husqvarna is a good choice. £150 - 175 for a decent secondhand one with a 15" bar, they are a poor mans 346XP but go very well. I had one for a few years and it was always my weapon of choice when any firewood was in the offering.

Got the 066 back together again, pressure and Vac tested, stripped the carb, H screw was set to 1/4 turn - Oh my my, not good and one of the reasons the saw seized. The gauze strainer filter in the carb pump was gunked up with black sludge, another possible reason for the seize. Air filters cleaned and reassembled, saw starts and runs nicely now. The choke lever has cracked so looking for a repair or may replace it if I can't do a solid repair.

Yah Rich, the MS180 - two possible faults, the wire arm may be slipping round the nylon pinion, the other problem I have had is that the pinion looks fine at first glance but the thread is in fact damaged and only rocks the oiler gear back and forth rather then rotating it - take real close look at the pinion and make sure the thread is good and that the arm is tight on the thing.

20":001_rolleyes: A very rough rule on max bar length is 1/3 the cc capacity of the engine so a 60cc will be 20". In reality, we all like our saws to rip and be well balanced so a 15" on your saw will be nice, 17" at a push but it will cut slower, 20" will be pedestrian! Chain type can also make a difference - you may find a 1.3mm narrower kerf chain will work better - the Oregon 95VXP is very fast chain!

Einhell claim to manufacture some kit and buy in others, just because the item has a brands name on it, it doesn't mean it is manufactured by the company. The place I work for purchases some kit from China third party but also manufactures its own product in owned factories. If you look at these saws carefully, you will notice the silver front, the cast metal line under the air box cover, the choke lever, the position of the fuel caps and AV mounts, all the same - all are manufactured by the same company. I don't know who does it but believe that Zomax are the culprits and Einhell buy their saws in from Zomax. I don't know this for sure but have seen these saws come up as Boomag, gardenline, gardentech, Maxtra, McDillen etc - same saw - all crap! I have met many people who say that they manufacture, but most will have no owned factory and all they are doing is using third party manufacturers to brand product with their own brand.

The old Husky 51 is never going to be a ripper but is still a competant saw for a bit of firewood. Power drop off may be down to a number of things, low compression, poor carb set up, dirty air filter/fuel filter, crap in the carb or just carboned up exhaust ports. It should keep up with the Aldi tat OK - and will definitely last longer!

I was wondering if you could fit a more restrictive muffler! Most people open them up, I have seen a few expansion pipes but perhaps a larger exhaust with a bit more silencing in it may help - just a thought! I could bring down the ported saws, he would appreciate how quiet your saws are then:thumbup:

I think that Zomax - Chain saw_ZM5200_Zhejiang Zomax Garden Machinery Co. Ltd are the Chinese manufacturers of this tat, I reckon they just colour and brand it for other companies. That was my take on it when I looked in to these saws. some time ago. I think all the other companies are just names with some form of distribution networks in Europe etc. The recoil cover looks different to the one I had, but the rest of it looks very similar. On the Einhell website it says they manufacture some kit and buy in others - I believe that Zomax are the manufacturers for all these generic saws in the marketplace but could be wrong.

Thats one of those Zomax saws, they come in all colours, are called things like McDillen, Zomax, Sigma. They also come in Husky colours and are supposed to be 395XPs and Stihl colours and are an MS460:001_rolleyes: I got a couple as a job lot once, the starter pulleys are brittle and crack, the recoil chord snaps, the top cover melts around the plug hole, the chainbrake is inadequate, the AV rubbers fall apart - on the good side, the oiler is adjustable but sounds like it is as fragile. You pays your money and takes your chance. Personally an old 25 year old Husky Rancher would be better than one of these and probably cost the same - you may learn something doing it up. Have returned your PM by the way:thumbup1:

Got the pot back on the Stihl 066, did a quick compression check and got around 155psi, this will drop a little once it is run up but looks fine and will bed in once a few tanks are run through it. Did a very similar repair for one of the local members recently and got very similar results and was bedding in nicely when I last checked so expect the same. Just got to do the checks to stop another seizure happening. I always do this, takes around 40mins but provides a damn good health check to ensure the seals and rubber components are in good nick. A carb clean and then a tach tune will ensure the saw is returned in good working order. Hopefully another happy customer:thumbup:

No worries, hope it helps. Stihl charge about £250 for their kit but my tools cost £30 for the vac test and £15 for the pressure tester - all does the same job, just got to apply yourself and think about what you are trying to achieve. Use a bicycle pump or foot pump to pressure the crankcase - anything else is likely to give it too much pressure. A few members are glad I did this check on their saws after repairing them:thumbup:

You put the air in through either a modified sparkplug base or through the impulse line - you will need to use a valve from a bicycle/car inner tube to seal the inlet pipe. Sealing the exhaust/carb holes is typically done using blanking pieces, bungs or custom made soft rubber sheet sandwiched between the cylinder and muffler/carb. A pressure of no more than 10 psi should be held in the crankcase - more and you may blow the seals out. If pressured to 10 psi, it should hold to no lower than 7psi for a few minutes - I tend to expect zero drop over a minute or two (I also rotate the crank after the initial test) with no visible drop in the needle. I have had engines hold full pressure for 30 minutes plus and don't expect to see the needle moving by naked eye. Stihl say something like the enging should hold some pressure for a minute but I like to see a total seal for minutes. You will need a suitable gauge that will read positive pressure. The other side of this is vacuum check. Pressure checks are great for impulse and carb boot leaks and not bad at crank seals, vac tests are better for leaking seals as it pulls the seal lip inwards. Both tests have saved me hours in finding split hoses etc but is a test more suitable for techs doing repair work all the time than someone doing a one off check.

I will try to get the piston in tonight, will clean the carb internally and then do the normal pressure and Vac test plus check the fuel filter and breather then tach at the weekend - despite needing to efurb my kitchen:001_rolleyes:

Think it is time to shake hands now guys, sounds like you are both right. Old Stihl Magnums were beefed up versions of standard saws - I worked on a 066 Magnum and its owner said it had larger ports, beefed up crank and bearings. Looks like the modern ones just wear a badge - bit like the second Italian Job film, same series as the first one but lacks a fair bit:thumbup: Deep breaths and ......calm:lol: