ms660

Issue as stated above. I installed a Big Bore kit on that saw and the valve pops every time I pull the cord now even with the spark plug disconnected. It's better with a chinese valve, but I still have to keep it pressed when starting. I even tried it with a new valve from Stihl, but it's just...

Anyone know if the pop up piston from Hyway is any good?

I've seen threads about converting flip caps to standard screw caps, but can't find anything going the other direction. I might get some flak for this, but I personally prefer the flip caps. Does anyone know if it's POSSIBLE to convert a 660 to flip caps? Maybe by using the fuel and oil tanks...

I have a ms660 and I'm unable to find the adjustment screw on the bottom of the base. I bought the saw used and am not sure if modifications were done to it. Any help would be greatly appreciated. Here is a picture.

Hello! I have noticed something that may or may not be an issue with my cylinder wich I just got from farmertec. the issue being that there is a lip on the cylinder head wich is between 0.4-0.6mm tall(Fig 1). If I was to sand this away I would end up with a 0.6-0.7mm gap on the exhaust port...

hey guys, new to the forum, been learning a lot reading all of everyones posts, just cant seem to find the info im looking for....maybe i havent dug enough. i want to prefeace by saying i am new to this, but very mechanically inclined....so i picked up an ms660, intention is to mill some timber...

So I was talking with a fellow last night, and it turns out he has a ms650 sitting around that needs a p/c. never got into price but i'm going to go look at it tonight. I don't know much about them other then what I have read here. There somewhere between a 640 and 660, but not held in as...

I have an MS650 magnum with a scorched piston (and possibly the cylinder) that I’m working towards repairing. Looking for OEM parts to make it right.

I beg your forgiveness for starting another 660 build thread. I bought this box of parts during the members sale since it was so discounted. I really don't need another saw, Already have a couple 361s I am using to test various modification on. But you know how it is, CAD strikes where it will...

I found two of the 066/660 54mm popup kits under my wife's desk if anyone is interested. $60 shipped?

Is this a mean purple machine or is it blue? I just got one last week. It is exactly the same as the kit just blue and without the opportunity to improve it. I see where the rotor still breaks. Do you disassemble it for preventive stuff or run it until its done? I could smell gas, maybe they...

FS: Stihl 066/MS660 1122 54mm cylinder "B" casting with decomp. Transfer was cleaned up but i found a few areas as seen in the pictures with pitting in the plating. I think it would make a great cylinder for a quick worksaw fix or port job experiments, or whatever else you think it can be used...

Mastermind MS660 For Sale. Comes with either the stock felling Dawgs or the 4 Point Pro Safeties pictured. I like this Saw, but I don’t need 4- 90cc saws so this one is for sale. $900PHO + Shipping I’ve got a few bars & chains I can add if so desired.

looking for a 660/880 or 395/3120 project saw.im located in Ireland so shipping is a must , pm me any info Thanks

Hi all, great site and its a pleasure to be a member. Im having a problem with the case of my clone ms660 from hutzl, the inset in the case for the chain tensioner spur gear measures 15.7mm in diameter and the actual spur gear itself measures 16mm so it in no way what so ever will fit, has...

Hi all, As the title suggests, I sent in my 660 to a chainsaw repair mechanic after the piston failed, probably due to over-revving. I usually do my own service work but was not in a position to on this occasion. The piston was clearly scored, grey and dry with seized rings in a manner...

Anybody have a Holzfforma chainsaw bar from Huztl that is losing paint? If you are had/have or were having problems with your oiler say something with you post. I have a pile of the Holzfforma bars and the rails look new and none of mine are losing paint but every stihl loses a little each...

I am looking for the fix for a Stihl MS660 brake that engages too easily. The basic symptom is that it will occasionally engage during normal cutting. The brake handle has excessive play as well. Short of replacing the entire assembly, which components are the normal failure points? Thank you!

Low Hour MS880 I took on trade towards another one. I swapped the Clutch Cover & Air filter with the one I traded. This is the Air Filter Cover: $1,100 shipped PHO. I have a couple bars & chains if wanted.

Its been a year since we started building these kit and we have come along way and FarmerTec have made significant improvements. So newcomers don't have to wade though 160 pages. Lets start from scratch. I will put a link in both to the other so if there is something that need to be found, it...