having issues with my single carb

made2care · Post by **made2care** » Fri Mar 03, 2017 7:09 pm

Used a VW 34-3 single carb. Bike runs but is fouling the plugs very quickly. I set the carb per DKL ( dude on steve saunders site) and she idles well but fouls plugs like crazy !!
Once the plugs are fouled, when i open up the throttle at highway speed , she stammers. no backfiring at all.
Is she running rich or maybe a possible vacuum leak but then it would run lean.
The plugs are sooty(dry) black.

If anyone has converted to the 34-3, your help would be greatly appreciated.

made2care · Post by **made2care** » Fri Mar 24, 2017 8:39 pm

Update, the main jet size interestingly enough was too small. adjusted , and she runs amazing.

Joecop · Post by **Joecop** » Mon Mar 27, 2017 1:06 pm

Any chance you could share some pics of your intake?

Jag · Post by **Jag** » Tue Mar 28, 2017 2:25 am

Thanks for the update I would also love to see some pics of this setup. Also how did you figure it out???

made2care · Post by **made2care** » Tue Mar 28, 2017 5:46 am

Yes, I will get pics sometime this week.i just ran some test runs , decreasing the main jet size each time. That was causing it to starve even more when I opened up the throttle. I went back to the size it came with and then went 1/2 size bigger, runs perfect now.

Dirtyoldman(DK) · Post by **Dirtyoldman(DK)** » Mon May 03, 2021 8:37 am

Hey that size main jet didn't you use

dingdong · Post by **dingdong** » Tue May 04, 2021 3:51 pm

Dirtyoldman(DK) wrote: ↑Mon May 03, 2021 8:37 am Hey that size main jet didn't you use

Say what???

Rambozo · Post by **Rambozo** » Tue May 04, 2021 4:36 pm

dingdong wrote: ↑Tue May 04, 2021 3:51 pm
Dirtyoldman(DK) wrote: ↑Mon May 03, 2021 8:37 am Hey that size main jet didn't you use
Say what???

With typos and autocorrect my wild ass guess is:

"Hey, what size main jet did you use?"

LAB3 · Post by **LAB3** » Tue May 04, 2021 5:36 pm

Rambozo wrote: ↑Tue May 04, 2021 4:36 pm
dingdong wrote: ↑Tue May 04, 2021 3:51 pm
Dirtyoldman(DK) wrote: ↑Mon May 03, 2021 8:37 am Hey that size main jet didn't you use
Say what???
With typos and autocorrect my wild ass guess is:

"Hey, what size main jet did you use?"

I'm running the same set up, it would be nice to know so I can compare notes.

AZgl1800 · Post by **AZgl1800** » Tue May 04, 2021 6:11 pm

I suspicion that 90% of our forum followers now only use a cellphone, I did NOT say a "smart phone" as those damn things keep screwing up my text AFTER I have approved the text, then click submit, and the "auto-correct" modifies my text...

I refuse to use a cell phone to surf the forums, I only use my laptop so that I can control exactly what is posted.

if it is wrong, it is my dyslectic fingers.

Dirtyoldman(DK) · Post by **Dirtyoldman(DK)** » Wed May 05, 2021 4:31 am

Well being dyslexia and from denmark english isn't my first language

Dirtyoldman(DK) · Post by **Dirtyoldman(DK)** » Wed May 05, 2021 4:35 am

Right now mine is running a 145 main jet but will be trying some bigger

having issues with my single carb

having issues with my single carb

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Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb

Re: having issues with my single carb