Stihl 200T won't stay running

[jbolts]

I like using the real Tygon tubing (it'll say Dupont Tygon right on the tubing) seems to hold up really well

Have you got a source?

 

[jbolts]

100% agree.

Yellow line will be fine but does harden up over time. Is the intake boot OEM? I had nothing but problems with the AM boots. I could see one heating up and leaking.

I had swapped out the boot with a farmertec.
I had a few on hand and I don't think any 2 of them were quite the same. Some were softer some were harder. I received tehm all at the same time! lol
That said the original boot seems fine so I put it back on.

 

[Stump Shot]

I had swapped out the boot with a farmertec.
I had a few on hand and I don't think any 2 of them were quite the same. Some were softer some were harder. I received tehm all at the same time! lol
That said the original boot seems fine so I put it back on.

Which has been the problem all along, run low on rubber, no problem, just add more plasticizers to make up for it. What is platic made from? Oil.

 

[Scotty Overkill]

Have you got a source?

I bought pieces on ebay a while back. Here's one of the loops I bought, I can't remember what exact size I used on the impulse line (you'd have to mic it to see as it's been a while since I did it), pretty sure it was this 3/16 ID line. This seller has many different sizes, I bought several to have for fixing ethanol-wrecked saws and trimmers.

Make sure it is REAL Dupont Tygon. It'll be stamped on the tubing. There is lots of fake Tygon tubing out there. Real Tygon is pricey compared to the junk stuff. But it'll last.

 

[Al Smith]

Keep in mind these little saws were born to be hot rods .That is if everything is working .If not they falter .I do have a crankshaft in my garage and old bearings .If there's an interest I can snap a picture showing the bearing with the thrust washer inside and the seal witness marks plus the build up of oily residue that eventually will take out the seals when the bearings gets worn out .I'm not certain if I kept any old seals .

 

[jbolts]

Which has been the problem all along, run low on rubber, no problem, just add more plasticizers to make up for it. What is platic made from? Oil.

Just to be clear, the am boot didn't help but the saw was problematic even with the oem boot.

Also the Farmertec fuel line never sealed properly when installed on the tank either

In summary basically every aftermarket part I tried did not work.

If nothing else maybe this will be a refresher... lesson learned?

Avoid after market parts at all cost, don't even bother

 

[jbolts]

I bought pieces on ebay a while back. Here's one of the loops I bought, I can't remember what exact size I used on the impulse line (you'd have to mic it to see as it's been a while since I did it), pretty sure it was this 3/16 ID line. This seller has many different sizes, I bought several to have for fixing ethanol-wrecked saws and trimmers.

Make sure it is REAL Dupont Tygon. It'll be stamped on the tubing. There is lots of fake Tygon tubing out there. Real Tygon is pricey compared to the junk stuff. But it'll last.

View attachment 375640

I would say closer to 1/8", 3/16" seems big.

Just measured ... as far as I can tell it's 2.5mm so closer to .100"

 

[Scotty Overkill]

I would say closer to 1/8", 3/16" seems big.

Just measured ... as far as I can tell it's 2.5mm so closer to .100"

They have quite a few different sizes

 

[jbolts]

They have quite a few different sizes

I think the 3/16" od tubing is 3/32" id so I think you had it right

 

[Al Smith]

Here is 200T cranks showing the marks from the seals and crud that wears out the seals

 

[Al Smith]

Now the bearing showing the thrust plate inside the assembley which goes towards the out side .The inner rides on a shoulder cut into the crank shaft .I've taken saws apart the rollers fell right out of the bearing .They say the seals from an 024 will work but I can't attest to that because all I've used were OEM.both seals and bearings .

 

[Al Smith]

I might add in a pinch you can clean the crud off the crank and just change the seals in order to keep running but they will wear out too in time .

 

[telejed]

Now the bearing showing the thrust plate inside the assembley which goes towards the out side .The inner rides on a shoulder cut into the crank shaft .I've taken saws apart the rollers fell right out of the bearing .They say the seals from an 024 will work but I can't attest to that because all I've used were OEM.both seals and bearings .

seals for a 201 work just fine

 

[telejed]

Just to be clear, the am boot didn't help but the saw was problematic even with the oem boot.

Also the Farmertec fuel line never sealed properly when installed on the tank either

In summary basically every aftermarket part I tried did not work.

If nothing else maybe this will be a refresher... lesson learned?

Avoid after market parts at all cost, don't even bother

I wouldn't say avoid them all together. I've built a 200 kit, subbing in a lot of OEM (most of the expensive stuff) and it's still going. Got another kit sitting, need a few parts. The kit fuel tank bolt holes don't line up with the kit crankcase holes. . .

Still in all, the kit, a carb, intake boot, bearings, seals, and a P&C, handle linkage, you can put one together for less than a new 201 and as far as I'm concerned have way more saw. 201 needs some expensive massaging to get it to 200 performance.

 

[Scotty Overkill]

I use 026 seals in all of my 020T/200T builds with no issues at all.

 

[jbolts]

I use 026 seals in all of my 020T/200T builds with no issues at all.

Am or oem?

 

[jbolts]

The 200T starts one pull no choke even after sitting
Pretty happy
My only other saw that starts no choke is one of my 357xps and even that one takes at least 2 pulls

 

[Scotty Overkill]

Am or oem?

I've been getting them aftermarket with no issues

 

[jbolts]

I've been getting them aftermarket with no issues

Great to know.
It sounds like you've done several?
Have they undergone long term real life testing?... in their natural habitat?

 

[Ketchup]

I’ve had very few problems with AM crank seals. That’s mostly what I use in 200t. All daily users.