Since the other thread on this topic is locked, I'm starting a new one here to share my findings.
@Edwad went way over the top and sent me a very nice MS661 and said to do with it whatever I wanted. You can't beat that! So that's exactly what I'm doing
Thanks Edwad. I can't say thank you enough!
The first order of business was to determine if it was something wrong with my saw, or something in the mods I have done to it. So, here's what I did this evening.
1. Run it just like it came out of the box, bone stock.
2. Install my gutted and opened up muffler, recalibrate, retest.
3. Install my MaxFlow air filter, recalibrate, retest.
4. Advance ignition timing, recalibrate, retest.
5. Swap the ported P&C from my saw, recalibrate, retest.
Guess what. I made it all the way through step five and his saw runs PERFECTLY! It doesn't have a hint of hesitation! There is nothing in my mods causing this issue. Something somewhere is amiss with my saw. I put nearly a full tank of fuel through his saw and it didn't even try to hesitate or stutter one time. I lugged it hard, I let it rev, I let it idle, I did everything I could think of. I knew that I had never experienced it with any other saw I had modded. So, I wasn't loosing my mind. It's a great relief knowing it's not my mods either. I arrived at what I'm doing with these saws by trial and testing, and don't care to go backwards on any of them. Now I know I don't have to.
Next I have to determine the source of the problem. Since his is running perfectly, I'm thinking I'll put my parts on his saw, one at a time. There are only a handful of components to deal with here.
1. Coil
2. Flywheel
3. Carb
4. solenoid on side of carb
5. Choke switch on side of carb
6. Wiring harness
Is there any reason not to swap the carb/solenoid and coil as a set? I don't think the Stihl setup is anything like the Husky where they're programmed to match.
@Edwad went way over the top and sent me a very nice MS661 and said to do with it whatever I wanted. You can't beat that! So that's exactly what I'm doing
Thanks Edwad. I can't say thank you enough!The first order of business was to determine if it was something wrong with my saw, or something in the mods I have done to it. So, here's what I did this evening.
1. Run it just like it came out of the box, bone stock.
2. Install my gutted and opened up muffler, recalibrate, retest.
3. Install my MaxFlow air filter, recalibrate, retest.
4. Advance ignition timing, recalibrate, retest.
5. Swap the ported P&C from my saw, recalibrate, retest.
Guess what. I made it all the way through step five and his saw runs PERFECTLY! It doesn't have a hint of hesitation! There is nothing in my mods causing this issue. Something somewhere is amiss with my saw. I put nearly a full tank of fuel through his saw and it didn't even try to hesitate or stutter one time. I lugged it hard, I let it rev, I let it idle, I did everything I could think of. I knew that I had never experienced it with any other saw I had modded. So, I wasn't loosing my mind. It's a great relief knowing it's not my mods either. I arrived at what I'm doing with these saws by trial and testing, and don't care to go backwards on any of them. Now I know I don't have to.
Next I have to determine the source of the problem. Since his is running perfectly, I'm thinking I'll put my parts on his saw, one at a time. There are only a handful of components to deal with here.
1. Coil
2. Flywheel
3. Carb
4. solenoid on side of carb
5. Choke switch on side of carb
6. Wiring harness
Is there any reason not to swap the carb/solenoid and coil as a set? I don't think the Stihl setup is anything like the Husky where they're programmed to match.
)
The debris problem is bad enough Stihl sent Nelson tree service something like 150 new carbs that had been hand disassembled, cleaned, reassembled a few months ago. I had the luxury of changing out quite a few.
