Back for Carburetor help.. part 2 1985 Honda 200S

[Fratolicious]

Had a problem over the weekend with an aftermarket carb. I could not get it tuned correctly. 350for350 suggested in a previous thread that he has found most aftermarket carbs are correct in size but multiple people have found problems with the jet size and I should unscrew pilot and main jets from my OEM carb, clean, and install.

I wanted to follow up on my previous thread since I had a long weekend changing /tuning my carb. 350for350 was correct on the jet size difference. I found the aftermarket carb jet holes that are all around the pin were almost 1/2 the size. Long story short I ended up using my original carb after a thorough cleaning because I couldn't get my aftermarket tuned correctly still. So now a new question as a result. I've attached a picture that hopefully will help. My OEM carb has a hole coming out left side near the choke lever. The aftermarket carb has the same hole except it's plugged with a small hollow brass pin. It has one small pin hole on it that's visible. I'm able to pop it in and out. What is the hole? Did I have a problem getting my this aftermarket carb to tune properly because I left that in? I worked so much on this carb stuff that I want some closure. Haha. Thanks for all the previous help. I sure learned a lot this weekend.

[Shep1970]

It’s the vent for the bowl- if it wasn’t there gas would not flow. There’s usually a 6” inch hose attached that just hangs below the carb. U should be able to blow through it.(into top of float chamber)
This hole correct? screwdriver is pointing at.

If the float didn’t stop the fuel hight/ then I suppose fuel would leak out. Sound right?

Shep

[Gabriel]

Some of the chinese carbs have a brass extension pressed into the aluminum body but it is NOT drilled. The last one I bought was that way. Made me wonder if poor float chamber ventilation could affect the quality of running.

[Shep1970]

The carb in the pics is also a china paperweight/ no matter what I did the machine never ran right—— i would melt it down for casting but the aluminum too is probably also crap.....

Shep

[Fratolicious]

The carb in the pics is also a china paperweight/ no matter what I did the machine never ran right—— i would melt it down for casting but the aluminum too is probably also crap.....

Shep

That's the exact hole that I'm talking about! So it doesn't effect operation at all? Thanks for the response. The only way I could get my machine to run perfect was to just clean my OEM carb and re-install. I was thinking that could of been why the aftermarket carb didn't work all that well.

[Fratolicious]

Some of the chinese carbs have a brass extension pressed into the aluminum body but it is NOT drilled. The last one I bought was that way. Made me wonder if poor float chamber ventilation could affect the quality of running.

It made me wonder because I could not get the aftermarket carb to tune.

[Shep1970]

Some guys have had good luck with the Chinese carbs. I’ve learned just to use oem and a good rebuild kit..... well my Tri-zinger has a China carb body “but” all oem insides and it runs great.

Shep
If your carb wasn’t venting, yes it would affect it-

[350for350]

I just stick to OEM too. If I have to pay as much as four Chinese carbs to get one, so be it. When I got my SX in 2014, did have to have Flyingw rebuild it for me? NO! I did it because I wanted it to be right when I wanted to use the trike. That's the same reason I just use OEM carbs. Quality isn't expensive, it's priceless!

[Tri-Z 250]

I just stick to OEM. Quality isn't expensive, it's priceless!

Quote of the day

[Fratolicious]

Quote of the day

After my battle this weekend is my quote for life!