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CBR 600 cutting out


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i was riding today and my bike just died on me thought it was battery its showing 12.65 volts but when i got it started again it was showing 11.2 volts could this be the regulator i need to change it kept dieing when i opened the throttle can anyone help please thank you

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Definitely something on the charging system.


Reg/rec would be the first thing to check, then alternator, then (as we found out the costly way :P ) all the wiring and connections between the three.


Take the plug off the reg/rec and check AC voltage across all the pairs of incoming wires from the reg/rec when the bike's running. If there's power getting that far it's reg/rec or the wires/connections there.


After buying 2 reg/recs and pricing up an entire wiring loom for cat's R6 we found out it was the white connector block that plugs into the reg/rec, an entire £1.50 piece

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also check continuity on the red from the reg rec plug to the battery ( probably to/from the main fuse/starter relay..check your wiring diagrams if you have a manual), clean and grease the terminals in the plugs...if the ac output from the generator is fine , and everything above the reg rec is ok, then its probably the unit itself

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A mod on my Blade is to add another earth wire from the reg/rec connector block directly to the battery negative terminal. :mrgreen:

 

Do it with the positive too ;-)


With the bike been a Honda its more then likely the reg rec that's gone test it first though and check wiring

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thank you for all your help ive ordered a new regulator now so should be here tom thanks again ill let you know how i get on with it :) :cheers:

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thank you for all your help ive ordered a new regulator now so should be here tom thanks again ill let you know how i get on with it :) :cheers:

 

ive now got the regulator fitted but still have the problem managed to get it started but when I touch the throttle it just dies do you think I should change the alternator not sure what to do now ?

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check the wiring, charge the battery, and made sure there not a fuelling problem.

if you havnt got one , buy a multimeter, saves a shit load of expense replacing parts that arent knackered

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Surely its got to be a fuel problem as the only thing that alters when you open the throttle is the demand for fuel?...It doesnt alter the spark etc?


If this were a normaly aspirated engine, eg carbs, then it would be the symptom of a blocked jet...

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Surely its got to be a fuel problem as the only thing that alters when you open the throttle is the demand for fuel?...It doesnt alter the spark etc?


If this were a normaly aspirated engine, eg carbs, then it would be the symptom of a blocked jet...

 


it alters the load which in turn will kill a weak spark if the battery isnt charging the battery voltage could be too low to allow any load on the engine

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It does sound like that


But as the voltage reading is off (given mine reads 13v when charging, anything over 14.5 or below 12v and its knackered).

CBR600's have a know reg/rec fault. Always worth swapping it for an aftermarket one anyway.

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  • 3 weeks later...

Thanks for all the advice it turned out to be the connector on the fuel pump that went i cut the connector off and put new one on its working sweet now thanks again :cheers:

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