What in the world is this???!!! MS661 related.

Arborist Forum

Help Support Arborist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Deleted member 83629
D

Deleted member 83629

Guest
well sorry for stating inaccurate information it i always heard from people with 2 stroke bikes it burned dirty.
i guess they were running the castor or the super.
 
boxygen

boxygen

ArboristSite Guru
Joined
Feb 5, 2012
Messages
770
Location
maine
Pardon my ignorance, but what does the computer saw if you "hook it up"? You would think mtronic would recognize this as a problem and log it as such.
 
jughead500

jughead500

Sasquatch
Joined
Nov 24, 2011
Messages
5,191
Location
Tennessee
Hmmm sphincter effect.
A_sphincter_says_what__by_Viking_Heart.jpg
 
mdavlee

mdavlee

Tree Freak
Joined
Apr 18, 2008
Messages
18,144
Location
tn
would running premium gas rather than regular make a difference in deposits?
Klotz Super Techniplate at 32:1 I've been running this in all my saws for a couple years now and never seen anything like this buildup.
So, which of the above suggested synthetics should I go to? price/gal seems about the same with freight via Amazon.
the mystery continues...

If the saws get run hard and not a ton of idle time I don't see deposits that much. If they are run on a mill and only idle a minute or so after a cut and shut off I've not got a totally black piston top even with Maxima 927. H1R takes too much adjustment for me to run and then try to send a saw out to someone who doesn't have a tach to tune them. I've noticed almost a 1k rpm difference from Klotz to H1R. K2 is good oil as is Motul 800. The Motul 800 can be used to =54° according to the engineers I spoke with back in December.
 
Dieselshawn

Dieselshawn

ArboristSite Operative
Joined
Aug 19, 2012
Messages
253
Location
Ontario, Canada
Since I have those rubber rings in the intake, I should try the saw on the dyno and see what difference it makes.

At first i couldn't figure out where the rubber came from as one was on the floor and the other was sideways in the intake port of the cylinder, not the boot.

I asked randy but he was confused too until he sent the link to this post.

I've been asked to get the serial number of the 661 to compare.

Just waiting to get home from work.
 
singinwoodwackr
Joined
Jan 31, 2012
Messages
16,034
Location
“Free” State of Idaho
If the saws get run hard and not a ton of idle time I don't see deposits that much. If they are run on a mill and only idle a minute or so after a cut and shut off I've not got a totally black piston top even with Maxima 927. H1R takes too much adjustment for me to run and then try to send a saw out to someone who doesn't have a tach to tune them. I've noticed almost a 1k rpm difference from Klotz to H1R. K2 is good oil as is Motul 800. The Motul 800 can be used to =54° according to the engineers I spoke with back in December.
hmm, I wonder which way to go with this auto-tune system. obviously the stuff I've been using ain't workin'.
 
singinwoodwackr
Joined
Jan 31, 2012
Messages
16,034
Location
“Free” State of Idaho
Since I have those rubber rings in the intake, I should try the saw on the dyno and see what difference it makes.

At first i couldn't figure out where the rubber came from as one was on the floor and the other was sideways in the intake port of the cylinder, not the boot.

I asked randy but he was confused too until he sent the link to this post.

I've been asked to get the serial number of the 661 to compare.

Just waiting to get home from work.

this one is: 179211553 MS661RCM
bought from: https://sharpeningshop.stihldealer.net/ Turlock, Calif
I've been buying saws, etc from these guys since the late '80s and Mike and his bunch are great to work with...I highly recommend them.
 
Top