Question about 1988 Honda VFR 400 R NC24

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Vfr 400 has poor performance at low RPM, any

Vfr 400 has poor performance at low RPM, the exhaust also makes a lot more noise at 5000 RPM then what it used too and the petrol is clean, any sugestions?

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Try a compression test of your cylinders ,and check your valve clearances .

Posted on Apr 26, 2010

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I have 2001 nissan maxima that loses power while driving


This means a lot of issues can be the result of poor loss and is a poor performance on the engine or drive. Sometimes a poor fuel tuning or an improper timing can cause this issue. Also a faulty fuel filter, fuel pressure at higher RPM , fault with auto advance which can be a vacuum loss or a friction on the brakes.
Also check for good spark, check the firing for good burnt indication of fuel and finally check exhaust clogging and the catalytic convertor.

Oct 11, 2011 | 2001 Nissan Maxima

1 Answer

Knocking nois from rear cams at 5000 rpm


adjust your tappets its its normaly the rear that goes out

Oct 21, 2009 | 1995 Honda VFR 400 R NC30

3 Answers

Vfr 400 nc24 whining noise when engine is reved


The loud whining noise is just normal for vfr 400 because it is gear driven cam.. As you reach 5000rpm up, the bike's electrics try to misfire the plugs so it would act as a speed limiter (180kph).. You have to bypass the sensor at the speedo..

Sep 28, 2009 | 1988 Honda VFR 400 R NC24

2 Answers

Misfiring 2007 Honda VFR 800


I would say that your bike may be running a little lean. I usually replace the jets on all my bikes as soon as I get them as the emissions requirements mandate that the manufacturers pass stringent emissions tests prior to the dealer selling them. Some bikes wont even idle or run, especially off road bikes from places like California. and in these cases you must re jet it is a must! I even throw away or drill larger holes into my air cleaner cover.

Good Luck!
Geodesygold

Sep 22, 2009 | Honda VFR 800 Motorcycles

1 Answer

Misfiring 2007 Honda VFR 800


try new plugs also maybe a different plug also check air filter is clean

Sep 22, 2009 | 2005 Honda VFR 800

1 Answer

I need to balnce my carb on my vfr 400 because i cant get it to go over 180km/h


Synchronizing the carbs will help out the starting, idling and acceleration but won't have a lot of effect on the top end power. I found a website that you might find interesting. Check it out and scroll down to the section listed as Speed Restriction. It may answer some of your questions. http://en.wikipedia.org/wiki/Honda_VFR400

Aug 27, 2009 | 1995 Honda VFR 400 R NC30

1 Answer

I was riding along on my vfr 400 nc24 when i heard a bad clunk and started belching blue smoke,lots of smoke the bike has competly died now have i blown the engine?


Chances are there is a hole in a piston or a piston ring is broken. A timing chain could have broken or jumped so that a piston hit an open valve. Either way, it is time to visit your dealer.

Can I get a “very helpful” rating on this answer?

Aug 17, 2009 | 1988 Honda VFR 400 R NC24

1 Answer

Honda civic ek3 1999 model


I assume you mean low idle speed 500 rpm. Genarally a tapping noise comes from the valve train, and a knocking noise comes from the crankshaft connecting rods. The way that a mechanic will narrow it down is to use a mechanics stethoscope. You can get one pretty cheaply at an auto parts store. Put the metal end of the scope on a part of the engine and listen for noise. On the other hand, if your car is idling at 5000 rpm, it would also be making ALOT of noise.

Jul 24, 2008 | 1998 Honda Civic

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