Huztl MS660

[axeandwedge]

In preparation for my kit to arrive, I ordered some bits from a local Stihl dealer:

*Wrist pin bearing
*Fuel line
*Fuel filter
*Impulse line
*Decomp valve
*Decomp valve cover(?)
*Wrist pin snap rings

I'll likely source a clutch drum as well. I'll try to break-in the packaged chain tensioner bits. If that doesn't work out, what's a few more dollars lol...

Glad to see you've done your homework buddy.
Hope you get a good run out of it when you put it together ,I'm not a big fan of their carbs though.

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[Oldman47]

Today the kit is on sale here.
https://www.arbortec.net/dealoftheday.asp

 

[Definitive Dave]

John finished his 066 Chinese buildoff saw already - it runs pretty darn well!!

he went with OEM Stihl piston pin bearing, circlips and wrist pin and ported the Farmertec 56mm Big Bore cylinder

 

[kjudd]

John finished his 066 Chinese buildoff saw already - it runs pretty darn well!!

he went with OEM Stihl piston pin bearing, circlips and wrist pin and ported the Farmertec 56mm Big Bore cylinder

Nice. What kind of rpms is that turning?

 

[Definitive Dave]

he is a youtube/facebook guy, he isnt on any of the forums, but if you ask on his youtube channel he can probably stick a tach on it
he is a chainsaw madman, just loves to tinker and build fast saws, absolutely great guy

 

[kjudd]

he is a youtube/facebook guy, he isnt on any of the forums, but if you ask on his youtube channel he can probably stick a tach on it
he is a chainsaw madman, just loves to tinker and build fast saws, absolutely great guy

Cool. Thanks

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[blsnelling]

Mr NOS himself!

 

[kjudd]

I'm now thru 3 tanks of gas on the HZ660. Still running great. Still getting stronger everytime i run it. I have my oiler problem figured out. I installed the wrong rubber piece on the suction side of the pump.

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[Bedford T]

for repeat builders
I was surfing, up late and I ran up on this circlip installer. it is more affordable. i emailed and asked if it would work on a stihl chainsaw and the guy hit me right back @ 145am and said it will. so this would allow easy installation of the oem clips.

https://www.accu-products.com/accu-...circlip-installation-tool-2-stroke-model.html

 

[Bedford T]

There a report of a leaking tank. I needed one anyway for a build I am doing to make use of a spare engine so I ordered the assembly and it arrived today. I did a pressure/vac test and made note of the improvements I see they have made since my first build. I am very impressed with how well the throttle system functions compared to the early models. The notes and test are in the video I attached.

 

[Bedford T]

I got a little further along. will stop now and gather some more parts. the air filter looks improved too on the way it seals, it feels that way at least. I had to trim a little plastic on the carb shield to get the air filter mount in it, the mount had to be cleaned up slightly in the holes, a tiny bit of slag interfering with the studs. a quick file knocked it back. very nice. I have all ready put a high output oil pump on it.

 

[TRoller]

Here's mine. Went thru two farmertec jugs before I went with the cross MMWS jug. First jug had plating missing out of the box so it was a no go. The second one I ran on the saw for 1 tank and pulled it. Had plating damage so I tossed it. We will see how this cylinder does.

 

[Adam08ski]

View attachment 591745 Here's mine. Went thru two farmertec jugs before I went with the cross MMWS jug. First jug had plating missing out of the box so it was a no go. The second one I ran on the saw for 1 tank and pulled it. Had plating damage so I tossed it. We will see how this cylinder does.

This is where I don't get farmertec. I had an 038 Mag farmertec jug and piston with caber rings. It cut about 2 cords of wood before I sold it on (AM parts listed in advert) before I had the farmertec I had a hyway number. The farmertec ran better hands down.. but they are soo hit and miss by the sounds of it..

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[OTAlucard]

View attachment 591745 Here's mine. Went thru two farmertec jugs before I went with the cross MMWS jug. First jug had plating missing out of the box so it was a no go. The second one I ran on the saw for 1 tank and pulled it. Had plating damage so I tossed it. We will see how this cylinder does.

I Saw your thread on O P E
I Went to go look at my cylinder And the plating seems like its all there but there's some slag in the transfer and exhaust port that needs to be filed down

I Looked at my 365XP Cylinder and the cylinder is probably 5x the quality of the 660 cylinder imo from farmertec just the way the casting is and such

I Hope that my cylinders plating holds up for many hours of use like most peoples saws in here But we will see :/

 

[Bedford T]

View attachment 591745 Here's mine. Went thru two farmertec jugs before I went with the cross MMWS jug. First jug had plating missing out of the box so it was a no go. The second one I ran on the saw for 1 tank and pulled it. Had plating damage so I tossed it. We will see how this cylinder does.

The 038 jugs were about perfect

 

[Adam08ski]

The 038 jugs were about perfect

Mine ran well.

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[TRoller]

The 038 jugs were about perfect

The one I ran on mine looked perfect, and ran ok for a 660 till I pulled the jug I would have never known anything was wrong.

 

[Definitive Dave]

for repeat builders
I was surfing, up late and I ran up on this circlip installer. it is more affordable. i emailed and asked if it would work on a stihl chainsaw and the guy hit me right back @ 145am and said it will. so this would allow easy installation of the oem clips.

https://www.accu-products.com/accu-...circlip-installation-tool-2-stroke-model.html

I bought that style first, nowhere near as easy as the Stihl tool

 

[brenndatomu]

I have all ready put a high output oil pump on it.

Mine slobbers oil out the bar lube hole when its not running...common? Cure?

 

[Bedford T]

Mine slobbers oil out the bar lube hole when its not running...common? Cure?

Have you dialed it back. Mine, most stihl's just barely oil the chain for me.