MS 650 Ported
- Thread starter Fire8
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gcsupraman
ArboristSite Operative
Stumpys Customs
Stumpbroke
Nothing wrong with porting what you got. Sure the extra displacement will help, but if the top end is good, then no need to replace it.
What is missing is a non decomp ported 066 jug,..just sayin...
fearofpavement
Trying them all
I am confused by your posts. It sounds like you like the 650 better than the 660, don't want the bigger displacement of the 660, but aren't happy with the 650's power. What is it you are trying to accomplish?
gcsupraman
ArboristSite Operative
I think what pioneerguy is trying to say is that you have a sucky jug to begin with :msp_smile:. Im not sure about the 650 jugs, but I have read that the 660 jugs from that era are not as desirable for performance mods as the older non-decomp jugs as suggested.
Its my thought if your going to spend $250-$300 to get it ported, you might as well swap the jug out to a better jug to maximize performance.
A little birdie told me there might be a new thread soon about a "new to the market" cylinder kit that will fit your saw. The hope is that it will offer increased performance, good quality and for a reasonable price. But we'll have to wait for the thread I guess
Stay tuned.....CRE1992
ArboristSite Operative
I will be following this! I just picked up a nice MS 650 at a pawn shop for $250! I would love to see what its does when ported.
fearofpavement
Trying them all
A "nice" MS650 for $250 earns a "you suck" award.
I have ported a 650 for a friend of mine and it turned out pretty good,but its no ported 660 by any means.
Seriously port the head you have if thats what you want to do. If done correctly it will run better than a stock 660.
Seriously port the head you have if thats what you want to do. If done correctly it will run better than a stock 660.
CRE1992
ArboristSite Operative
Here it is along with its little brother the 460 Magnum, which I paid $400 for.
Get Yourself a Stock 066 Mufler
I agree that the 650's have a sweet powerband. I had one, and regret selling it. I would pick up a stock Stihl 066 muffler, retune, and call it a day. That alone will wake up the 650 quite a bit. It did on mine.
I agree that the 650's have a sweet powerband. I had one, and regret selling it. I would pick up a stock Stihl 066 muffler, retune, and call it a day. That alone will wake up the 650 quite a bit. It did on mine.
Mastermind
Work Saw Specialist
Just send it Danny.........I'll knock 50.00 off for you since you are a fireman and stuff. 
Just send it Danny.........I'll knock 50.00 off for you since you are a fireman and stuff.
I guess what I'm look for the 650 made into
A felling chaser,stump and butt cutter running a
32" bar the 365/372 and the 550 to do the rest
Does that make sense
Mastermind
Work Saw Specialist
Just send it Danny.........I'll knock 50.00 off for you since you are a fireman and stuff.
You said you were gonna add $100 to the price on mine because I'm a fireman...
Mastermind
Work Saw Specialist
You said you were gonna add $100 to the price on mine because I'm a fireman...
200.00 now.
So apparently there is a difference in where the powers at between the two saws. Could someone elaborate on this?
Mastermind
Work Saw Specialist
The MS650 is 85cc and the MS660 is 92cc.....or so
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