spudulike

It is possible the gauze filter is clogged with fine wood chip, if it is one of the 2011 - 2014 models then doing a bit of work on the muffler and the flywheel usually makes them closer to the MS200T, done many conversions and it works! "Easy" depends on how good someone is at dismantling and rebuild of assemblies and fault finding!

It comes from sniffing two stroke:lol:

It is alien, who says they are 4' tall, green, big eyes and only have two fingers on each hand. The invasion has happened and looks insignificantly like a very small green willy but will soon grow to be a bloody big green todger:lol:

Yes, really an 066, many years training has given me a keen eye on such things:001_tt2:

It is good stuff, easy to cut to size and fit. I also use it to braze metal and is cool almost immediately after use!

Yes, fully agree, Stihl 066, stripped a bit and diagnosed by the fella as low compression......measured 160psi, ended up being the central sparkplug electrode had broken and was touching the earth electrode:001_rolleyes: Another expert!!!

Perhaps we could send out a search party, I know this bloke called Dr Livingstone, lots of experience:lol:

I have an original Stihl one from a working blower - £40 delivered if interested! PM me if you want it.

Here you go - http://www.motoculture-jean.fr/upload/pdf/070.pdf

If it pulls 150 - 160, you have problems with your trimmer, if it pulls the same 100, you don't!

Probably a muffler mod only would be the best bet as the ignition mod used on earlier models would possibly mess up the auto tune. I can't say what the gains would be but think they would be worthwhile. Best let the warranty run out before modding it though.

I would suspect that your compression tester is for car use only and not be suitable for small bore engines. Have you a good working saw with good compression that you can measure and compare the compression?

From experience, Sainsburys Gel is the dogs - Sainsbury's - Please enable cookies or JavaScript Have used a few gels and this one doesn't clog multi blade razors and cleans off the razor easily unlike many! Best stuff by far and good value!

Is this 5-7 pulls with the throttle open or partially open? What gauge was it measured with? It all makes a difference.

I would expect £300 - 375 for the saw in good working order with a bar and chain. Just get the muffler bolts helicoiled. Not a big job!

Had the fun of servicing an HT131 pole pruner a week or so ago. I was told that on full extension drive was being lost intermittently. So.....started stripping it down and what a job. Springs, sliders, bearings, bushes.....what a mare. Three of the strange slider bearings just fell apart, bits were stuck in the tube, a couple of loose circlips, all stripped and a bucket of bits. Ordered the parts, serviced the four stroke power-head and waited. The parts came in eventually, I am guessing not many people service these things. After a while examining the parts, the parts list and scratching my head, I put it together, stripped it, put it together, stripped it and eventually worked out how the unit goes together, how the sliders and springs fit together and how it all hangs together. Got a sense of achievement getting it all back together and working again - think it was pretty shagged and must have been interesting using it as it was with only two of the five bearings complete.

These carbs have a slide with a tapered needle on it which slides up and down in the main jet, to cut down the fuel you lower the slide via the idle speed adjuster or via the hidden screw:sneaky2: That being said, it sounds like you have a setup issue and over-fuelling may be caused by a leaking needle valve so check this out by pressure checking the carb and make sure the gaskets and diaphragms of he carb are in the correct order. This may help - http://www.jonsered.com/ddoc/JONI/JONI2004_AAaa/JONI2004_AAaa_TBC230,D,S_.pdf

I will have to blunt the nasty sharp bits on the chain when you roll your kit in for servicing:sneaky2: Get well soon, could have been worse but at least you survived in one piece!

Here we go, at full tilt: - [ame] [/ame]

Been porting again, this was a real pleasure as the saws were in stonking condition. A near new MS200 with very little use (2010) and a very nice 395XP which sounded rather good once done. Compression on the MS200 was circa 180 before my adjustments so that should go well and the 395 turned out nice.

Bloody expensive at £1k!

I have left that with the owner, it is his choice and he has all the info on this thread!

If the engine is sealed and the compression is good then it is probably fuel related. Test the fuel line and give the carb another looking at. It sounds like the low speed fuel delivery isn't correct so look at this - new carb kit perhaps!

Sounds like the needle valve isn't seating correctly, it is possible that the diaphragm has hardened and is holding the needle open all the time. I would pressure test the carb but a new carb kit will probably sort it!

Turn them all the way in and then one turn out each screw. It should run on these settings.