help on power cut!!!!

[Javer_]

hi all... i have change my vtec 1 speeddo metter to digital..

and now there is a power cut when rpm went to 5500!!??

the rpm just cant go up.. must ram the bike when reach rpm5500...

anyone can help me give me some advice.....

[biting_point]

hi all... i have change my vtec 1 speeddo metter to digital..

and now there is a power cut when rpm went to 5500!!??

the rpm just cant go up.. must ram the bike when reach rpm5500...

anyone can help me give me some advice.....

 

you first need to tell us you changed to what digital speedo..?

brand, etc..

 

the RPM shown on the digital speedo may not be accurate..

[joajas]

This problem is similar to unplugging the speedcut sensor connector at the speedo area.

 

Read through this http://hondacb400.myfreeforum.org/Japanese_Grey_imports_400cc_180KMPH_RESTRICTOR_about5.html

 

It is about removing the speed restrictor. It is mentioned inside that by remove power supply to the meter, you will encounter misfiring at 5500rpm if your bike has speed cut.

 

Check the 3-wire connector that is mentioned in this thread. Your new meter should provide the same signals to this connector as your stock to prevent this misfiring problem.

 

Most likely this connector is left hanging somewhere when you install the new meter

 

Alternatively you can do what is mention in the link, do a bypass of your speed cut and your problem should be solved.

[skateboy]

even changing the speedo, the bike shd b working normally rite? so is ur bike working fine b4 u change the speedo? did the engine actually stop at 5500 rpm n not rising or is it just the speedo?

 

please specify?

[Javer_]

'TRAIL TECH' vapor Speedo/Tachometer but when be4 fix on, mi on the way to bikeshop mezzo @kaki bukit rd 1... got tis pro le..

change it becoz of accident my old meter spoil.....

[Javer_]

when rpm 5500 the bike will pull back... i tink is after the accident....

[biting_point]

mine was on Vapor, and nothing like this.. but stucked at 177kph when i tried my top speed..

 

the above link to solve your problem is on a Ver S..

[dingjc]

what is spec1 power cut. i had tried hitting 180km (as shown on meter) and it does not go up further, neither i experienced power cut.

 

what does this mean? my fren who rides spec1 says can go to "190" which is not indicated on the meter but is the one box after 180.

[biting_point]

what is spec1 power cut. i had tried hitting 180km (as shown on meter) and it does not go up further, neither i experienced power cut.

 

what does this mean? my fren who rides spec1 says can go to "190" which is not indicated on the meter but is the one box after 180.

 

All JDM bikes produced after 1998 had this 180kph powercut.. even on those monster cars GTR and NSX..

 

you friend that goes "190" is the meter error.. i also experienced that, but my GPS told me my max speed that time is only 179kph..

 

the only Super 4 without powercut is Project Big 1.

[dingjc]

okay. but is it possible that power-cut to be removed?

 

i dun intend to remove. but i dunno if my previous owner have removed.

[biting_point]

okay. but is it possible that power-cut to be removed?

 

i dun intend to remove. but i dunno if my previous owner have removed.

 

the only possible way would be installing the redrev..

 

the below links are some previous discussions on powercut.

 

http://www.singaporebikes.com/forums/showthread.php?t=201209&highlight=powercut

 

http://www.singaporebikes.com/forums/showthread.php?t=144748&highlight=powercut

 

http://www.singaporebikes.com/forums/showthread.php?t=168265&highlight=powercut

[Javer_]

like tat is my engine got problem liao....

ya biting_point, is ur rpm meter keeps on go up n down when 6th gear mi running at the speed 60kmh, the rpm is at 8000...

u know any shops can i check my bike....?

can intro mi coz mi still new to cb400... pls....

[biting_point]

like tat is my engine got problem liao....

ya biting_point, is ur rpm meter keeps on go up n down when 6th gear mi running at the speed 60kmh, the rpm is at 8000...

u know any shops can i check my bike....?

can intro mi coz mi still new to cb400... pls....

 

how is the RPM sensor connected?? if it's coiled around the plug cable, it'll be erratic and not stable..

try to hot wired it onto the ignition coil.. it's more stable this way..

and the grounding for the RPM sensor also must be wired properly..

[Javer_]

thanks biting_point...!! u know any shops can i check my bike....?

[silverstein]

like tat is my engine got problem liao....

ya biting_point, is ur rpm meter keeps on go up n down when 6th gear mi running at the speed 60kmh, the rpm is at 8000...

u know any shops can i check my bike....?

can intro mi coz mi still new to cb400... pls....

 

maybe not fixed properly.. usually mine 6th gear is 3.7k rpm at 60km/h..

 

cheers..