Question about 1976 Honda CB 100

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Having problems starting honda ruckus i can get it runing buy spraying gas into the carb but then dies any ideas

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This sounds like no fuel flow to your carb. I would proceed as follows:
Pull fuel hose from the inlet of the carb and see if you have flow, if not, check for plugged screens. While in this step, consider draining all fuel and replace with new fuel.

If you did have fuel flow, you will need to take the carb(s) apart and see what is wrong. Some times the float needle gets stuck and a moderate tap on the carb body with a screwdriver handle sometimes releases it, otherwise, you need to open the carb and look for gummed up orifaces and inlet valve issues.

Posted on Apr 06, 2011


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My o3 Ruckus only runs with the carb drain open,,, why is that??? please help

Hi, Bryce and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
8. Damaged petcock diaphragm allowing fuel to flow through the vacuum line into the combustion chamber.
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Since I don't have info on your machine, I'll just give some general ideas. If your machine has a fuel pump check it to see if it's working. Take off fuel line from carb to see if pump is pumping fuel. Check fuel filter. The problem may be clogged/ dirty carb. Use carb cleaner spray into carb throat , and approx. 1/3 can of carb cleaner into fuel tank.

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Honda ruckus

Give the "Whatever" a good service. Plugs, oil, filter and air filter.

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2004 Honda Shadow VT600C VLX Carb?

You may want to give this product a try its the brand name is Sea Foam they have in spray form i use the non spray form because a lot of bikes just sit for a year or longer and the gas turns to gum to green hard deposits and this was the only product that would desolve the green deposits when i do carb clean / rebuilds.

Oct 24, 2012 | 2004 Honda VT 600 C Shadow

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92 Honda Accord LX Won't start at times.If I spray starting fluid in breather it will start, will start Any help will be appreciated

/tom..only a half way back yard mec....i would spray some carb cleaner into the intake ..losen the hose going from air filter and spray directly into that...u have to gas it while spraying or it will die....then put a bottle of fuel injector into gas and fill up or as much as your wallett lets you and just MAYBE it will stop that up and down...fuel injectors may have clog...or...may be one of the 500 sensors that are on these hondas!

Nov 08, 2011 | 1992 Honda Accord

1 Answer

I have a 1980 Honda 750k. I recently purchased it and it wouldnt hold an idle at all. would just die if you wasnt giving it gas. I had the carbs tore down checked and rebuilt but I am still having the same...

you may have a vaccume leak try spraying some carb cleaner around the carbs and intake ports while running and see if that changes the idle speed or allows it to idle for a second, otherwise it still sounds like a carb problem please rate

Aug 01, 2011 | Honda CB 750 Motorcycles

1 Answer

1973 CL100 Scrambler, died while riding, won't start

Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side or bottom of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the
carb and spray into the screw holes as well.
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Put the rest of the
carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine.

A “very helpful” rating for this answer? Thanks!


Jul 01, 2009 | 1973 Honda CB 100

1 Answer

Trouble starting gas trimmer

Yes. It sounds like you need to clean the carburetor. Take the carb. off, disassemble and spray with carb. cleaner. Make sure to clean the small screen in carb. Clean the small portals with a Den Tek Brush, (used for cleaning between teeth). They work great for this job. Reassemble carb. and try starting. If this doesn't cure the problem then you will need to buy a new carb. kit and replace the needle valve, gasket(s), diaphragm, & small screen.


Jun 03, 2009 | Ryobi Garden

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