Question about 1992 Honda CB 750 Nighthawk

Open Question

Motor runs at idle but will not rev up - 1992 Honda CB 750 Nighthawk

Posted by Anonymous on

2 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

  • 30 Answers

SOURCE: idle problem: motor revs up and down at idle

it sounds like your idle control valve needs cleaning or replacing

Posted on Oct 08, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Real up and reving in park fast idle in drive


motor revving - CarGurus

www.cargurus.com > Questions > Chrysler > Town & Country

CarGurusDec 28, 2012 - motor revving - Sometimes the motor revves up and the light go dim on... If in park it takes alot of rev. to make the pop sound. ... 1996 chrysler cirrus change a bad fuel injector and now the engine revs ... Used Nissan Quest".

Idle issues... cold runs great... after warms up it hesitates ...

forums.nicoclub.com/idle-issues-cold-runs-great-after-warms-up-it-hesita...
Feb 20, 2009 - TYC 800107P Nissan Altima Replacement Cabin Air Filter ... when i go to park the car and throw it in park it goes up to like about .... If I leave it in drive when the idling starts to hesitate it tends to make the car jump forward.

All Questions and Answers for Nissan Repair - AllExperts.com

en.allexperts.com > Autos > Auto Repair

Jan 13, 2016 | 1996 Nissan Quest

1 Answer

I own a 1990 3cv it increases revs from idle to around 3000 once it has warmed up if I stop the motor for a bit then start it again the revs will do the same I have cleaned out the carbs and replaced


You mean the revs come up even if the throttle is left in idle?
If yes: it means your idle runs too lean AND the carbs aren't balanced ( one gives more air than another )
Unscrew all the idle mix screws 1/2 turn
To balance, remove 1 spark plug lead, check the rev falling.
Replace the lead and remove another one. Check the rev fall etc...
Regulate the carb opening so that all the cilinder disconnects give the same rev-drop.

Dec 20, 2014 | Bikemaster 1986-1990 Yamaha Fj1200...

2 Answers

Motor only runs on high idle how do I fix it


Check your govenor linkage and action. Your engine has a plastic gear running the govenor inside the crankcase.

Sep 27, 2014 | 5.5 HP GX160 Engine

1 Answer

1993 jeep wont rev over 3000 rpm and idles rough


Run a fault code test as a starting point for diagnosis of this problem, learn how to do that here

Sep 17, 2012 | Cars & Trucks

1 Answer

Motor wont rev up when starting cold with choke on trys to run on idle but will not rev up


the motor wont rev high on choke.the motor is suppose to fire once on choke. then turn the choke off.pull the start cord and the motor should start and run.check that the throttle conrol is on full. it should run fine.

Dec 26, 2010 | Honda 8 HP Engine

1 Answer

On startup engine revs at 1500revs after some time itslows to 800revs but is spasmotic


The car "should" rev higher and then idle down. this is normal programmed behavior. However, when the idle is low the car the motor should run smooth. If there is a "miss" like the motor is lurching, replace the plug wires. If there is a rough idle (revs up and down) then look for a vacuum leak starting with hoses between the motor and PCV valve. Anything squishy or oily in the rubber hoses indicates a hole. Also check the air ducts between the air filter box and the throttle body. If you can't find a leak, spray carburetor cleaner around the intake. If the motor revs faster at some point you have found a leak. Also check for a faulty fuel regulator by removing the rubber hose to the regulator to make sure it's dry and contains no fuel in the rubber hose (any fuel means the regulator has failed and requires replacement or repair by someone who can replace the diaphram).

Sep 06, 2010 | Ford Festiva Cars & Trucks

1 Answer

1990 lincoln town car 5.0, hard to start then


air idle control motor probably sticking remove motor and spray w-d-40 inside then reinstall and tap with a hammer while running

Dec 07, 2009 | 1990 Lincoln Town Car

1 Answer

1998 Pontiac Grand AM GT motor revs


it would not be an O2 sensor, period, they would never cause a high idle, have u had this checked for trouble codes? A sticking idle speed control air bypass can cause this problem as well as a throttle position sensor, but run the codes, Kragen does it for free was well as other parts stores.

Mar 10, 2009 | 1998 Pontiac Grand Am

1 Answer

Too fast idle running speed.


Typical idle for this motor is right around the amount you have described. Check to see if any check engine lights are on, or if the ABS light is on. A typical issue with this motor is the OVP relay that when not operating properly causes the engine to rev much too high (~1500-2000). Also do your revs drop significantly when you put the car into gear? If not then there really isnt an issue. When the motor is idling too high and you stick it into gear the car will typically lurch really hard.

Jan 19, 2009 | 1986 Mercedes-Benz S-Class

Not finding what you are looking for?
1992 Honda CB 750 Nighthawk Logo

Related Topics:

23 people viewed this question

Ask a Question

Usually answered in minutes!

Top Honda Experts

Arnie Burke
Arnie Burke

Level 3 Expert

4514 Answers

yadayada
yadayada

Level 3 Expert

75066 Answers

Gino Cussen
Gino Cussen

Level 2 Expert

216 Answers

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

Answer questions

Manuals & User Guides

Loading...