Question about 1985 Honda CB 700 SC Nighthawk

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Problem starting i bought a 85' honda nighthawk that sat in a garage for three years. i got a new battery and got it home. i cleaned out the carbs and gas tank.had it running like new. drove to the store, got out of the store and tried to start it and it turned about a quarter then it sounded like the starter spun free. i tore it apart and the starter is fine but the gear it is hooked up to will spin in both directions and dose not crank the motor over.my ? is what is going on with it please help!!! if you can help me thank you very much....in advance

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Sounds like timing chain broke.

Posted on Sep 06, 2009

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Posted on Jan 02, 2017

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1992 Honda CB 250 Nighthawk only runs with choke on


Hi, Gracie and the usual suspects are:
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2. Fuel filter clogged.
3. Fuel line pinched or kinked.
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2007 Honda VT600 Shadow Fuel Valve


http://www.hondashadow.net/forum/53-general-bike-discussion/65725-2007-2008-vt750-vt600-vtx1300-recall.html

Mar 28, 2017 | Honda Motorcycles

1 Answer

My 92 nighthawk has sat for almost two years. now it not starting. what should i try?


drain gas in the tank and put some freash gas check for spark if all good try to start if it doesnt the carbs will need to be cleaned if that is so pull off the carbs pull the bowls of and spray every little port with air dont lose any thing so be carefull when doing this that your jets dont fall out any ways reassemble and fire it up i hope this helps good luck

Jul 06, 2011 | 1992 Honda CB 750 Nighthawk

1 Answer

1992 Honda CB 750 Nighthawk will not idle without choke


Hi, Emeraldcp and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Vacuum line from the petcock to intake manifold cracked.
5. Float needle and seat sticking.
6. Float level too low.
7. Carburetor bowl vent line clogged/blocked/pinched.
8. Idle adjusting screw set too low.
9. Air/fuel mixture screw set too lean.
10. Idle port, transfer ports, slow air jet clogged.
11. Slow fuel jet clogged.
12. Faulty fuel pump.
13. Faulty auto choke or wiring connection.
For more information about your issue and valuable "Free" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
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https://www.partsfish.com/page/oem-parts-for-honda
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1 Answer

My 1982 Honda v45 will not run without the choke on. It sat in the garage for years with old fuel in the tank. We drained the fuel, changed all the oils, etc and completely REBUILT all 4 carburetors. I...


The slow jets and adjoining passageways are still dirty. As painful as it may be , take the carbs off and clean the slow circuit again or it will never idle. Double check the fuel pump is working properly and the fuel filter is not plugged. One time it took me four cleanings to get all four carbs working on a Suzuki that sat for five years. Also make sure none of the carburetor boots have developed rips from age.

Aug 31, 2010 | 1982 Honda VF 750 S

1 Answer

Wont start


If it sat for two years, you probably have varnish and gum buildup in the carb. You'll need to take the bowl off the carb and clean it with carb cleaner. You'll also need to spray the cleaner around the linkages and the jets inside. Be very careful taking apart the carb so you don't lose the float needle.

May 03, 2009 | Honda Ev Plus Cars & Trucks

1 Answer

Gas leak as soon as engine starts


needs a good carb cleaning an replace float needle&seat on ythe eaking carbl

Mar 29, 2009 | Honda XR 200 Motorcycles

2 Answers

Starting up a garage queen


The carb may need cleaned! make sure tires are not dry rotted! The seals may have dried out after a long wile but in most cases you should be alright!

Jan 07, 2009 | 1988 Honda CBR 600 F Hurricane

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