firing up - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 12 (permalink) Old 12-11-2012, 06:27 PM Thread Starter
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firing up

dunno if this is a typicall rc51 trait, but when im firing my rc up it taken its time coming to life. i know those big pistons take alot to get going and fire into life, but id there anyway to cure this? maybe an uprated starter motor from a newer fireblade, or uprated ignition system?

b4 you guys ask, theres plenty of life left in the batt

my old nc30 used to fire into life after months of downtime at the drop of a hat!

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post #2 of 12 (permalink) Old 12-11-2012, 07:05 PM
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With a decent battery mine fires right up (with the choke/high idle). Get a weaker battery and it can spin over for a while.

Check your battery draw voltage.
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post #3 of 12 (permalink) Old 12-11-2012, 07:23 PM
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Easy....

.....install a Shorai Li-ion battery.
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post #4 of 12 (permalink) Old 12-11-2012, 08:33 PM
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Originally Posted by kwtoxman View Post
With a decent battery mine fires right up (with the choke/high idle). Get a weaker battery and it can spin over for a while.

Check your battery draw voltage.
+1....even on a marginal battery mine kicks right over.



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post #5 of 12 (permalink) Old 12-12-2012, 02:51 AM Thread Starter
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my local garage is about to do a major service on it and will also be changing the plugs, would new plugs make a difference?

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post #6 of 12 (permalink) Old 12-12-2012, 08:05 AM
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are you using the choke?

go to youtube and watch some rc51 videos to get an idea of how others' bikes start. it seems like every model of bike i have ever owned had its own little starting quirks and none were really the same.
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post #7 of 12 (permalink) Old 12-12-2012, 08:13 AM
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Only if the plugs are fouled.
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post #8 of 12 (permalink) Old 12-12-2012, 08:29 AM
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Only if the plugs are fouled.
As he said, replacing good plugs with new will have no effect. Replacing a good starter with another good started will do nothing. Replacing a good battery with a new battery will have little effect.

You will need to find out what the weak part is and replace it.

If the motor is turning over well, and the bike is simply not starting, you might have bad plugs, weak spark (coils or ignition unit), bad fuel, clogged injectors, etc.

If the bike is barely turning over, you could have a weak battery, weak starter or corroded connections between them. Check the amp draw on the starter and you can determine if it is drawing too much and that would be a good start.
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post #9 of 12 (permalink) Old 12-12-2012, 08:43 AM
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Cbr 600 coil mod... worth every penny

With a proper map in the ten years I have owned mine I have never used the enrichiner valve and my plugs last forever
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post #10 of 12 (permalink) Old 12-12-2012, 06:20 PM Thread Starter
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are you using the choke?

go to youtube and watch some rc51 videos to get an idea of how others' bikes start. it seems like every model of bike i have ever owned had its own little starting quirks and none were really the same.
yeah i pull the choke right out br starting the bike. maybe thats the prob, cos its not really a choke, more of a fast idle option.

will try firing it up without it next time.

do you guys pull out the choke b4 firing it up?

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