Ok, had dremel and we'll see how much damage I did.

[Motoschwinn]

Last night I decided to match the ports on my bike. I sat down, and carefully opened up the poo poo pipes flange to match the exhaust on the cylinder. Looks really good ok, then I glued the new exhaust gasket and after it dried, i reamed it out too with the dremel.

I did the same as much as possible with the intake. So this afternoon, the first test drive. I'll let you know if it was worth it.

[Dave31]

Keep us posted

[Motoschwinn]

Ok, well it seems to have a bit more power on the hills, but now it's running to rich as I can smell fuel. Runs a bit better choked up. So my thinking is I need to adjust the carb clip again?

[Andyinchville1]

Hmmmm...If the engine is running better with the choke up....that means it is running too lean (rather than rich).....be careful not to fry the engine by running it too hard in a lean condition....

Good luck

Andrew

PS - Have to lower the clip (raises the needle) to richen it up...

[Motoschwinn]

Originally Posted by Andyinchville1

Hmmmm...If the engine is running better with the choke up....that means it is running too lean (rather than rich).....be careful not to fry the engine by running it too hard in a lean condition....

Good luck

Andrew

PS - Have to lower the clip (raises the needle) to richen it up...

Well it's confusing. It's much cooler today than when I was running the bike before I did the dremeling... It's been a hot humid summer, and it was running better before. So the settings were for the hot weather. Also noticed fuel all over the carb. This is weird.

[Motoschwinn]

Ok... update. Pulled the cable and sleeve out of the carb and it was on the lowest notch. So I put it on the second from the top. Seemed to run much better with the choke on just a touch. I'll move it to the second lowest notch and see what happens. I do run a bit heavy on the oil side. I guess opening these ports, opened a can of worms too. However, it does really pull on the hills. I've noticed since doing this work, and replacing the gaskets it doesn't seem to have the crackle as much.

Any opinions at this point are very welcomed!

[Jemma Hawtrey]

Originally Posted by Motoschwinn

Ok... update. Pulled the cable and sleeve out of the carb and it was on the lowest notch. So I put it on the second from the top. Seemed to run much better with the choke on just a touch. I'll move it to the second lowest notch and see what happens. I do run a bit heavy on the oil side. I guess opening these ports, opened a can of worms too. However, it does really pull on the hills. I've noticed since doing this work, and replacing the gaskets it doesn't seem to have the crackle as much.

Any opinions at this point are very welcomed!

The more the ports are matched and blueprinted - the more they are free flowing... if you dont have a tuned pipe on there then the more fuel/oil per stroke is escaping.. hence the richer you have to run the motor.. but the more power you will get because the scavenging in the engine is better.

If I am right - the crackle might have been whats called 'four-stroking' but not having heard it in the wild I am not sure..

Jemma xx

[Motoschwinn]

I think I'll install the original manifold and see what happens...

[Bikeguy Joe]

Hold on...you can't chase down a problem, you have to diagnose it.

What color is your plug, regardless of "C" clip settings? Black- too rich. tan/brown- good. Grey or white+ death to the engine.

Leave the pipe on and get the mix right. You'll be happy when it's all sorted.

[Motoschwinn]

Originally Posted by Bikeguy Joe

Hold on...you can't chase down a problem, you have to diagnose it.

What color is your plug, regardless of "C" clip settings? Black- too rich. tan/brown- good. Grey or white+ death to the engine.

Leave the pipe on and get the mix right. You'll be happy when it's all sorted.

Ok, the plug is brown to dark brown. Only runs right with the choke is just slighty on. I pulled the aircleaner off, and visually I would say the choke is about 15% on.