Question about Motorcycles

Open Question

Zenith carb running to rich on 1978 MGB - Motorcycles

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 125 Answers

SOURCE: I have a 1978 Yamaha DT175E. It is runnig rough

Check the choke to see it is not stuck on.
Something is causing the bike to run rich as you said.
Make sure the throttle slide isn't stuck and is working ok.
Try a smaller size jet.

Posted on Jun 15, 2009

  • 311 Answers

SOURCE: yammy rd 200 1978 inconsistent running

check the neddle valve seats under the float bowls,may find that theseats are not sealing,to test,take the carbs off the bike,remove the bowls ,compress the floats untill they are all the way up(simulates full bowl of fuel)then blow through the fuel inlet pipe,you should not be able to hear air passing throgh the valve if you can replace the valve seat and the needle valve,sorry cant remember point settings,long time ago since i worked on one of these

Posted on Jul 04, 2009

  • 149 Answers

SOURCE: I have a 1978 R80/7

it could be that you have a vacuum leak between the cylinder and the carb that is leaning out your fuel, check the connection between the the two. to confirm that there is a vacuum leak spray some brake cleaner or any flammable gas on the connection between the two and if the revs go up, you found the problem... hope that helps

Posted on Aug 14, 2009

jakeslimco
  • 56 Answers

SOURCE: Apparent carb problem.

carb sync problem.. check online for some really easy to make carb sync tools from home..

the tubing with liquid fill worked well for me

cheers

Posted on Sep 17, 2009

ollie reece
  • 1167 Answers

SOURCE: Carb is running rich. How can I adjust it?

on the mixture screw in picture below buddy b4b6b13.jpg

Posted on Nov 03, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Where is the paint code on a 1978 MGB


The VIN for the later MGB circa 1970 to 1980, may be found stamped on a plate secured to the left hand door post, and on a plate secured to the top of the dashboard.

These colour codes maybe useful -
http://www.mgb-stuff.org.uk/paint.htm

Sep 07, 2014 | Cars & Trucks

1 Answer

Hi i have just restored my 1978 ssd darmah and when i downshift i get backfiring can u help


It sounds rich in fuel, try adjusting the screw of the carbs to make the fuel air mixture optimal.

Nov 23, 2010 | 1978 Ducati 900 SD Darmah

1 Answer

I have a 1978 ford inline six has a newer holley card having hard time adjusting it. Runs great at lower rpms and idel but when you drive it loses power and backfires.


As you know, you have one of two things going on. it is running too rich or too lean. Run it hard for 15 minutes pull the plugs and check for black, wet looking soot = rich. Brownish, whitish dry looking soot = lean. Be sure your vacuum advance on the carb is hooked up to the proper port. Check the full advance of the timing with a light to be sure you have proper advance during rev up. You want 22 degs. full advance. If you have a pull choke try to close the choke to see if that will level out the hi end. If that works you are running to rich. adjust as necessary to lean it out. Too big a carb can also be your problem. For the best carb to engine size double the cubic inch of you engine. If your engine is a 290 ci you max size carb should be approx 550 cfm, Now if you engine has a hi rpm cam profile you have to factor in needed cfm at hi rpm. Thats why such and engine for racing will not have good bottom end or low rpm power. Sounds like you have just the opposite going on. Which can still be caused by a over sized carb. Too much fuel not enough air or room in the engine to burn it.

Sep 04, 2010 | Ford F-150 Cars & Trucks

1 Answer

I have the Suzuki GS 750E, the spark plugs are constantly becoming fouled, how do i correct this problem


sounds like its running to rich, check your air filter is clean, set your carb mixture ,
turn the screws in untill they bottom out ,but dont turn to hard !(they have a fine needle point end and are easy to break leaving the broken point inside the carb making adjustment impossible )back all four screws out 1.5 turns and start from there.run the bike and adjust from there to rich turn out to lean ( weak turn in )

www.thegsresources.com a good web site for these bikes.

good luck

Nov 23, 2009 | 1978 Suzuki GS 750 E

1 Answer

Apparent carb problem.


carb sync problem.. check online for some really easy to make carb sync tools from home..

the tubing with liquid fill worked well for me

cheers

Sep 17, 2009 | 1984 Yamaha FJ 1100

1 Answer

I have a 1978 R80/7 BMW motorcycle with Bing diaphram carbs that have been rebuilt with new parts. It will start and run but only if I almost completely cover the carb inlets. I will not run with the choke...


it could be that you have a vacuum leak between the cylinder and the carb that is leaning out your fuel, check the connection between the the two. to confirm that there is a vacuum leak spray some brake cleaner or any flammable gas on the connection between the two and if the revs go up, you found the problem... hope that helps

Aug 13, 2009 | BMW R 80 Motorcycles

1 Answer

Yammy rd 200 1978 inconsistent running


check the neddle valve seats under the float bowls,may find that theseats are not sealing,to test,take the carbs off the bike,remove the bowls ,compress the floats untill they are all the way up(simulates full bowl of fuel)then blow through the fuel inlet pipe,you should not be able to hear air passing throgh the valve if you can replace the valve seat and the needle valve,sorry cant remember point settings,long time ago since i worked on one of these

Jun 30, 2009 | 1978 Yamaha RD 250

1 Answer

I have a 1978 Yamaha DT175E. It is runnig rough like runnig rich but idles ok put on a new carb checked autolube oil pump and timiing,found that runs better when air box is not conected to carb but still...


Check the choke to see it is not stuck on.
Something is causing the bike to run rich as you said.
Make sure the throttle slide isn't stuck and is working ok.
Try a smaller size jet.

Jun 12, 2009 | 1974 Yamaha DT 360

1 Answer

Running too rich


there should be a screw on the front of the carb that has a spring on it you want to turn that screw

Apr 05, 2009 | 1978 Chevrolet C1500

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

17 people viewed this question

Ask a Question

Usually answered in minutes!

Top Motorcycles Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

75117 Answers

kakima

Level 3 Expert

102366 Answers

Are you a Motorcycle Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...