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@merc_man , I just ordered 13 of those sediment bowl filters so don't go ordering one, I'll hook you up when they come in.
Sweet. Thanks. I read somewhere on line ther was a dilter in ther. Never owned anything with a sedimate bowl befor. Dont know a whole lot about the.

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Does anyone know if a lightly scored piston will make it impossible for a saw to hold a tune, particularly on the low end? Having problems with the Homelite and wondering if that may be the cause.
 
Does anyone know if a lightly scored piston will make it impossible for a saw to hold a tune, particularly on the low end? Having problems with the Homelite and wondering if that may be the cause.
I would think not. I would be check the seals and or carb.

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Got around to playing with the pioneer 620. Pulled plug to see if any spark. Has giod spark so figured i would put a little splash down the carb and see if it wpuld fire and she lit rite up for about 3 seconds and died. Kind of excited now. Shouldnt take much to hopefully get her running on her own. Will play arou d this week and see if i can get it vping then ill pull it apart and start cleaning it all up. I would like to mabe repain it and make it look new again. Always wanted to do that.

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I would think not. I would be check the seals and or carb.

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That's what I was thinking, but I had to ask. I'm getting some new av mounts for it so the saw will have almost a full teardown soon and I will check pressure/vac on everything now that I have the tools.
 
Got around to playing with the pioneer 620. Pulled plug to see if any spark. Has giod spark so figured i would put a little splash down the carb and see if it wpuld fire and she lit rite up for about 3 seconds and died. Kind of excited now. Shouldnt take much to hopefully get her running on her own. Will play arou d this week and see if i can get it vping then ill pull it apart and start cleaning it all up. I would like to mabe repain it and make it look new again. Always wanted to do that.

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Those old 600 series pioneers look really good when they are repainted.
 
Does anyone know if a lightly scored piston will make it impossible for a saw to hold a tune, particularly on the low end? Having problems with the Homelite and wondering if that may be the cause.
Check out the carb boot. It's a big piece of rubber and can look good but have a pin hole. They are available and cheap insurance.
 
Check out the carb boot. It's a big piece of rubber and can look good but have a pin hole. They are available and cheap insurance.
I have been in it and replaced it already, but that was quite a while ago, I have learned quite a bit since. Figure I must've missed something and caused an air leak somewhere.
 
I have such a good son! He went with a friend to help sort out tools in the friends grandads old shop. He brought me 2 new projects and a few other goodies.
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@Kensie1988 those carbs on the 600 series pioneers have fuel shut offs or just like any other saw?

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From what I've seen it's an old tillotson HL carb, they are really good carbs, I haven't looked the 650 carb over real well, but I did notice the low speed jet is in the normal spot on the left but the high speed jet is actually tapped on the front right of the carb and has a handle that you can tune on the fly. But I'm not sure I know exactly what you mean by fuel shut off.
 
From what I've seen it's an old tillotson HL carb, they are really good carbs, I haven't looked the 650 carb over real well, but I did notice the low speed jet is in the normal spot on the left but the high speed jet is actually tapped on the front right of the carb and has a handle that you can tune on the fly. But I'm not sure I know exactly what you mean by fuel shut off.
I had had an old homelite that had a fuel shut off befor carb and wasnt sure if all the older bigger saws had that.

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