4 cycling mystery solved!

[bandito]

Thanks Motor biker thats pretty clear explanation. I liked that bike lance was riding, he stated it was a moped but I didnt see any pedals on it. It looked alot bigger cc wise.

 

[Evan]

mine 4 strokes most of the time except at full throttle and. it seems to level out and run nice at certain points in the range if i keep it at a steady trottle. But I am still in the breakin period. Sounds like from what im reading this is probably normal. Am I thinking right on this?
Evan

 

[BarelyAWake]

Yeppers 'cept I'd wait...

If it's still doin' it after a few hunnerd miles then I'd start to wonder if it's a touch on the rich side - but it sounds like yer right on the edge so I wouldn't sweat it, it'd be movin' the clip up a notch at the most.

These carbs aren't known for their precision so don't kill yerself tryin' to "tune" it beyond a certain point - it's a waste of time really without a air/fuel adjustment screw.

Remember - yer spark plug can tell ya a lot more 'bout things than we can

 

[Evan]

The plug looks good and im already on the top notch so sound like like i should leave it. BTW, my elevation is not quite 200 feet. Thanks Evan

 

[Evan]

Well Nougat that is great advise. I'm barely through the first tank but some small holes in the filter cap sounds like a good idea being that i'm all the way up on the needle. This would give me more adjustment. I'll wait to get through this tank before I do anything.

It also brings up another question. I have never been able to get my exhaust apart. It is the type that has 2 small screws on the side to hold the end cap in and try as I might I could never get the cap off. I finally gave up when I worried I was gonna break something. Any ideas on that one? Evan

 

[Evan]

I can get the screws out but the end cap wont come off. I'll try a bit of heat