big/small

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  1. A

    Twin/single plug big/small valve heads...

    I have an 03 rsv, and (yet to have another look) am pretty sure it has twin plugs in each cylinder (spark plugs) yet I have read that this years model (03) is supposed to be single plug big valve heads. Can anyone shed any light? I'm just off to check it out now to confirm whether is single or...
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