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Don_Parsons

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May 6, 2020
Messages
645
Thanks for the feed back CL,,, I'll have to back read and the link too get up to speed on this...

I see a home made pipe will be in order for my next build combing up...

Also,,, They show in the diagram a lower tube,,, or a center one leading out the back,,, what is the idea of this extra tube,,, it looks like a secondarily blow down tube off the tuned expantion chamber...

Not sure what's its for... seen a photos of it on a few links,,, the main chambered,,, them another tube leading to the rear of the pipe... 🧐

Don
 


Don_Parsons

Active Member
Joined
May 6, 2020
Messages
645
Founded it,,, it's called belly stingers channel...
15923160764225888823746902025868_1355480642592222.png


It must do something,,, and what's size wouldn't it be ???
 

Don_Parsons

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May 6, 2020
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645
Thats awesome. Please do share CL, I haven't a sneaking suspicion that we will build a prototype like yours,,, then I'll rap out 10...

I'll send you 1 for free if yould like...

Dang namit,,, what a great way to get 0.4 too 0.8 extra ponys depending on jetting of course...

Expansion Chambers """should""" be mandatory on all 2 stroke engines...

Pal Don as i follow along 👍
 

FurryOnTheInside

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Sep 23, 2013
Messages
3,926
Okay I'm posting my whiteboard sketchy. I'm not going for a full thread hijack though. 😅 promise.

You only need put your tuned length on your sketchy when youve decided what RPM you want it to be tuned to.
Wider pipes are usually harder hitting but theres things people do with stealthy slim pipes that are not too bad and definitely beat the stock hotdog muffler. In fact, with the side drilled end closed stinger I hope my next pipe will be both quieter and also faster. 😄

Nanight, all.
 

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Chainlube

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Jan 5, 2020
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1,383
I had it out riding, but the carb needs tuning. Goes good on the flats but on the hills it can barely get up.
Well, the motor position that I picked wasn't the greatest for pulling the carb so I decided to change it. It needed to go forward an inch or so, so I made two new motor mounts. Actually, I just shortened the front one and all new for rear.
 

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Don_Parsons

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May 6, 2020
Messages
645
Got too love trial and error 👍...

1 out of 10 should work... Ha...

I'm running with at least 20 + fails since getting into this hobby a few months ago... 🤔

But hey,,, we won't know unless we give things a try...

Plus it helps build up our scrap metal pile...

Now I'm thinking about building a air plane... ✈

Lol

***Not***

Don
 

Chainlube

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Jan 5, 2020
Messages
1,383
There I go, lots of room to service my carb now. You can see where I had to trim part of the air filter to get it to clear the seat post.
 

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FurryOnTheInside

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Sep 23, 2013
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I can see but I'm not sure anyone else can. It's an attachment to your post on your own build thread. Why not just post it full size in the post? 😀

The stock filter box holds back a perfectly functional little (14mm?) carb anyway. Its better with the hole! 😁👍
 

Chainlube

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Jan 5, 2020
Messages
1,383
I can see but I'm not sure anyone else can. It's an attachment to your post on your own build thread. Why not just post it full size in the post? 😀

The stock filter box holds back a perfectly functional little (14mm?) carb anyway. Its better with the hole! 😁👍
That's what I thought too, and easy to do. I just carved it out with my utility knife.

If you click on the picture it becomes full size.
 
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