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My 99fzr400 not idling proper,at times struggle to throttle out of 1st gear.i have changed the spark plugs,cleaned the carbs as well as the battery and battery leads/how do i solve this problem!

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Does the fuel line have a filter, if so try cleaning / replacing filter, otherwise you may have dirty fuel in tank

Posted on Nov 30, 2014

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Timing on a 1997 50 hp Evinrude model BE50TLEUC.Carbs has been clean new plugs refuse to idle and struggle to start.


OK.. have the carbs been professionally cleaned and set?
Has the engine been sitting up? - Check the compression.
If the compression is good and the carbs ARE clean and set properly.. check for air leak.. this will make idle rough and hard to start.
Check the choke and make sure its working properly.

May 24, 2017 | HP Boating

1 Answer

I have a 1999 suzuki gsxr I sync the carbs and changed the spark plugs I started my bike and idle fine put in to 1st gear and the bike starting spuddering every time I put a load every gear it would...


If the motorcycle has sat more than 6 months with reformulated gas, it more likely has jets plugged up and will need a carb cleaning. Plug jets will cause sputtering and bogging down when the engine is loaded.

Nov 22, 2014 | Motorcycles

1 Answer

I have a 1999 suzuki intruder 1500 lc and I just replaced the spark plugs about a week ago. Before I replaced them, it would act odd while ridding and would hesitate to start. I thought it was the spark...


Brother,if it's fouling plugs,your running rich.Idle circut in one of your carbs may be stuck open.If the plugs are a pretty light brown or white,they're good.Why fix what ain't broke.As old as it is,you may just need to clean the carbs.Do this one at a time on a clean surface putting the parts in order as removed.Use lengths of small guitar string to push through the tiney ports for removing any particles stuck in them.Don't change any settings,after reasembled,just set the idle mixture screw after warmup for the fastest idle,then turn the throttle screw down to proper idle on the tach.

Oct 02, 2013 | Motorcycles

1 Answer

2006 buell blast struggles to start and barly idles


Then your carb IS NOT CLEAN or IS NOT ADJUSTED PROPERLY. Flooding is a direct result of your carb having issues.

Mar 08, 2012 | 2002 Buell Blast

1 Answer

I changed the batery and the spark plugs on my 2003 trailblazer but now when I turn on the ac the rpm needle drops and the truck turns off. What can I do to solve this problem?


$4.00 fix Unhook the battery and clean the throttle body with throttle body cleaner, should be nice and shiny. When finished, hook battery back up and drive around for 5 miles or so with all accesories off so the computer can relearn a properly functioning throttle body.
The computer or PCM learned some bad habits with that dirty throttle body, so when you changed the battery, computer thought the TB was clean, and you'll have idle problems with the AC or defrost on.

Important note.....do not use carb cleaner or brake cleaner, will harm sensors, use sensor safe cleaner or one marked for throttle bodies. I just bought a can today for $3.99, I'm over due to clean mine as regular maintenence. We don't have a traditional PCV valve, so our throttle bodies get gunked up faster than others. Should clean once a year or more depending on driving habits.

If you can change our plugs, you can do this....dealer charges around $85-$100

May 27, 2011 | 2003 Chevrolet TrailBlazer

1 Answer

My ZZR 400 has no power. I've replaced the jets .


Hi there and welcome to fixya,

I can share with your sentiment there. Here's are some of my ideas, you'll need to be patient enough though.

the jets you used, is it the stock replacement or a bigger one? I would recommend using the stock jets to eliminate the possibility of it being the cause. Tune your engine using a timing light, synchronize the carburetors so each intake manifold receives the same amount of fuel on throttle. Drain the fuel form the carb reservoir (or clean the whole carbs including the jets). Adjust the air-fuel mix to standard or 2.5 -3.5 turns out. Check for hose dents and check for proper plug firing.

Make sure cylinder compression is also good otherwise you'll suffer power loss on peak RPMs at high speeds.

The above process should eliminate any possibility with regards engine idling and poor idling.

To answer your question regarding valve clearance you'll need to download the manual to assist you on dissassembly. You'll need to remove the top cover on the engine and use a feeler gauge for adjustments. I'm not sure how to find the TopDeadCenter of this particular bike but the manual should.


Hope this in any helps you out,
levibit

Dec 21, 2010 | 1995 kawasaki ZZR 400

4 Answers

My 1974 Yamaha 250 Enduro wont start I have cleaned and redone the carb. I have changed the coil pack and spark plug. Any suggestions will help Im not a mechanic by any means so not sure where to start...


you need good compression ( at least 90 psi , kicking it with the throttle open) , good crankshaft seals for sucking the fuel/air into the botton end, proper point gap and timing set for spark ( spark should be big and fat,if not the source coil is weak,, this is a flywheel magnito ignition and it needs no battery to fire the plug) if you clean the carb, make sure you also clean the choke pickup tube or it wont choke. also make sure you have the slide installed in the right direction ( not backwards and the idle is not set too high at first...compression/****-good spark at the right time-proper fuel/air ratio and it will run

Jul 04, 2010 | 1974 Yamaha DT 360

4 Answers

Toyota Camry idles then dies


It is NORMAL for the engine computer to have to "Relearn" how to idle the engine after a battery replacement. This should only be temporary and will go away after a few trips.

If it does not go away, or if the Check Engine light is coming on, it will require diagnosis to determine the cause. Nobody can tell you if the problem is related to your recent work until the cause of the problem is located.

Poor idling and stalling on deceleration can be caused by anything from a bad Idle Speed Control motor (ISC)
to low fuel pressure (Clogged fuel filter, bad fuel pump) to a bad connection in the A/C clutch sensing circuit. (Kicks the idle up when the A/C compressor is running)

Nov 02, 2009 | 2002 Toyota Camry

2 Answers

01 ford ranger 4x4 4.0V6-- rough idle like it wants to cut off. loses power or studders under acceleration. struggles to get up to 55 or 60


I agree. Try replacing the spark plugs, install new spark plug wires, change the air filter, change the fuel filter, and test the battery and alternator. Run a bottle of fuel system cleaner and water remover through it. To replace the spark plugs you'll most likely have to go through the wheel wells cause of their hard accessibility from the top. The fuel filter is located on the inside of the frame on the driver's side. Hope this helps. God bless

Oct 22, 2009 | 2000 Ford Ranger SuperCab

1 Answer

1991 Corsica dies after being put in gear.


Hi

You need to get two things checked. Ignition and Fuel.

Ignition: typically in this order ... Start off from sparking plugs ,,, move to leads (get them changed) and on to the ignition coil if there is no spark coming out of it. In case of fuel, the carb needs a clean and a good carb cleaner or fuel treatment (added to the fuel tank) wont do any harm. You should open up the carb filter. Remove it and change it if its dirty. Start the engine rev it up and while its revved up (throttle flap open) spray the carb cleaner or in this will clean the carb cleaner from inside. If the power gradually increases its a clear sign that you need to open up the carb and get the jets cleaned. properly.

Hope that this fixya will get you on the roads soon :)

Regards :)

Jan 07, 2009 | 1991 Chevrolet Corsica

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