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99 Maxima acts like clogged converter sometimes and other times as if the choke is stuck wide open. No backfiring instead it seams the fuel surges and is either has no power to get up and go or is full throttle and out of control.

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Hi, Dachelle you need to repost your question under the Nissan category, not Motorcycles. Thanks, Gregg

Posted on Nov 23, 2019

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6 Suggested Answers

6ya6ya

6ya staff

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Posted on Jan 02, 2017

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Anonymous

  • 2 Answers

SOURCE: homelite runs wide open all the time

intake boot under carb is probably bad, mine did the same thing and this was the problem. about a 6 or 7 dollar fix

Posted on Apr 11, 2009

carlsbiz

Carl

  • 1124 Answers

SOURCE: My Sears riding mower chokes itself out after warmed up,

Careful with the high octane.. That can burn a hole in the piston..

It might be fludding.. At the bottom of the carb should be a bowl.. One bolt at the bottom.. Take it off and clean it.. Spray some carb cleaner up in there where the float is..

If that dont do it --

Maybe the float is bad & taking in fluid..

If it has sat for long piriods of time - the carb might need to be cleaned & rebuilt..

When gass sits in there for a long time it shalacks and wont work correctly..

Pop off the carb & take to your local small eng shop. Shouldnt cost to much..

Posted on Jul 09, 2009

Wayne McNeil

  • 209 Answers

SOURCE: Craftsman 32cc Trimmer Runs with choke at idle, then stalls

Sounds like somewhere you have a air leak. Most likely it's somewhere near the carburetor intake or maybe the carb itself. Could be a line from the primer if it has one and i do believe it should that could be leaking or loose. Good luck.

Posted on Aug 02, 2009

bo manning

  • 290 Answers

SOURCE: 1995 Nissan Maxima idle problems

Let's try the cheapest fix first. Change the fuel filter out. You'll probably see a brown looking goop in the gas, This is an "ETHANOL" problem. Read up on it. These are all related to so many idle and acceleration problems. Buy a can of SEAFOAM at the parts house. Fill up tank with Premium and add SEAFOAM. Then change filter out before 500 more miles. This should clean out the water and the goop and the carbon build up caused by the ETHANOL. Add a can of SEAFOAM every 3000 mile after that to a full tank of gas. It will keep your emissions,engine, and fuel lines clean. And will keep your car from line freeze up. Good luck.

Posted on Aug 29, 2009

iain kelly

  • 311 Answers

SOURCE: ltz 250 wont idle needs full choke to run.cleaned

hi,sounds to me like the air fuel ratio is all up the ***,locate the air/fuel screw on the carb(normally on the side)screw the screw right in untill it stops,then back the screw out 1.5 turns,this should get the bike to run without the choke,once you have the bike running simply turn the screw in or out untill the bike settles into a nice steady idle,should be good to go,hope this helps...cheers

Posted on Mar 27, 2010

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First, what are you working on? Some cars (chevys) have ignition modules with a low rpm section and a high rpm section, so they may start and idle fine but act up at speed. Bad coolant temp sensor can act like choke is stuck on (or off as well). Weak coil can cause this. Clogged cat converter or muffler can do this. Weak fuel pump or clogged filter also.

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Hi, Bill 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.
99 Nighthawk Choke Needs to Stay up to Run Fixxit
Oakys Garage Carb clean Pilot Jet clogged Won run without Choke Carbs 101
Honda CB250 Shop Manual
https://www.partsfish.com/page/oem-parts-for-honda
Honda CB250 Nighthawk Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


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