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All my 56mm have been showing up at .022 with the gasket! Hitting tdc without! Very fun to yank on with the advance.... Not.

Using multiple base gaskets to fine tune squish is common amoungst manufacturers in engine building. Shouldn't be a problem. If you don't want to do it (for whatever reason), find some card stock or gasket material that is around .024 thou and you have the optimal squish that he is looking for.

Find yourself some paper stock that mics out in the .004 to .008 range. Use a pencil to transfer the top of the case profile and bolt hole locations onto the paper. Cut it out and then use (whatever gasket sealer material you like, I use Threebond 1184) and glue the paper to the top of the...

Do yourself a favor and check the squish again. Did you check 4 different spots? What are you using to check the squish? The reason that I'm asking, is that if your squish is actually that tight, the fix isn't that simple. Is it the 54mm jug? So, here is the answer if you are getting an...

2002 is the new clutch. 2005 is the old one. 2002 is 6 2002 is the new 6 coil clutch. 2005 is the old style 5 coil. Doesn't make a whole lot of sense that they would have a "smaller" number for the new style clutch, but that is my understanding.

https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F173554614916

Oregon has a complete kit with Oregon drum and sprocket, bearing, both spacers and E clip and a Highway clutch for $50....

Hey guys, update on my clutch. I said the other day that I had noticed that the clutch was getting weak on one of my 660 builds. I ordered the Oregon/Hyway clutch kit and replaced it today. There wasn't anything wrong with the kit clutch and drum. There was just a bunch of gunk inside the...

Seems like the direction my business is going. We have a woodworking business and started milling to build a barn, and now everyone around us wants stuff milled. I've been booked milling for 2 months solid. I'm milling all the lumber for a 12x16 shed right now.

This bar was new on this saw when I built it.

One of mine got a good workout today. I've noticed that the clutch has gotten a tiny bit weaker. I'm gonna upgrade to the Oregon package. I probably have 50 tanks through this one.

I hate to say this, but it sounds like it isn't holding the fuel charge in the system "well". If you have the ability to pressure test the fuel circuit, I would do it. Also, I would vac/pressure test the top end as well. You could be losing vacuum and not pulling the fuel charge well enough...

I agree with Bedford. I noticed no difference in the way my saws(660's) start in the winter and summer. I don't have "high idle" and not because I "can't" fix it, but because I "haven't" fixed it, or needed to. Mine pop within 2 pulls and are running within 5-6.

Congrats Rich. Funny you ask, because I have been thinking that I'll do exactly what you asked as part of a "every winter" service. Seems like the least I can do and keep them fresh for the spring. I'm not a big fan of "unsealing" well sealed ****, but what the hell. Mine are running so...

Yup.... Just get the right ID and the thickness of the tube shouldn't be an issue. I got some right at my local hardware store...

I'm running two BB jugs on my mill saws. They both have almost an entire 36" chain sharpened through them. Haven't had one single issue with either (besides recoil assemblies blowing up about a year ago). Like stated above, you "need" to use the base gasket to minimize the Freeport. With the...

I saw your original fix "66", how is it holding up? So the "mo" for the fix is to replace the control shaft and trigger with OEM, or shim the control shaft. I tried to put some of that thick ass black gorrilla tape on the face of the shaft cam, it worked on one and didn't work on the other...

I run all mine wide open as well.

The HO pump almost uses a whole tank of oil... I'm estimating at 3/4.