Pilot Jet issue. NEED ADVICE

[vbednarek209]

Hello, I have a 1980 cb750 custom. I just recently purchased the bike. I took it into the shop for a service and basic check over, and they found that the pilot jet on carburetor #4 wasn't functioning. In essence, my 4 cylinder has been riding on 3 cylinders (at least at half throttle and below).The people at the shop said there was nothing they could do, but the service at that place was absolutely terrible, so I don't trust them.

Is there anything that can be done to fix this issue? is it not that big of a deal? Idk if i should look into buying aftermarket carbs, or try to find the parts used.

Any help/advice would be greatly appreciated.

Thanks!

[shinyribs]

Pilot jets are very easily plugged up. Their passages are just so tiny.

 Remove it and run a very thin piece of wire through the holes and then flush it with carburetor cleaner. Rinse and repeat until you can see through all the holes in it.

[icerigger]

If that doesn't work, try this

http://www.cb750c.com/modules.php?name=Forums&file=viewtopic&t=19823&highlight=remove+pilot+jet

I did this over last winter and found that two of the jets were plugged with corrosion beyond help. New jets can be had from Sirius Consolidated part # KHS-47A035x4.

Good luck

[vbednarek209]

Hey shinyribs, thanks for the reply. I haven't been on the site in probably over a month now. The guy said the the pilot jet for the year my bike was made (1980) couldn't be removed..? I'm calling bs. Everywhere I look there are replacement jets. Can you confirm or deny this suspicion?