BillingCBR wrote:Nothing changed, still clattering and knocking, so fearing the big end has gone bang, so stripped the bike down to see if it was something simple like a loose shim or something. Nothing obviously out of place, so fitted my RVF cams and put the tops back together (first time taking cams out of a V4, wasn't too scary, and setting the cams was a doddle, thanks Honda!)

While I have the carbs off I decided to clean them up a bit and do some of the jobs I wanted to but couldn't be bothered to strip the bike down to do them they were that minor. Double checked the pilot screws were set to 2.5t out, and fitted my NC24 slides with J51 A and B needles and an extra .5mm washer.

Couple of pics from the last few days;

My view from my bedroom door


Spark plug colours in the rear cylinders



Slides, Jap NC30 on the left, stock NC24 on the right.



As you can see the NC24 slide is higher, with 2 small holes instead of 1 also small hole. The needle exits the slide at the same height, the sides have just been pulled down a bit to smooth off the venturi at WOT hopefully it'll make a tiny difference in throttle response, and a bigger difference if I start going big power :)

BillingCBR wrote:Hey Ricky,

I didn't notice any immediate difference as the engine was kaput, but what I have noticed is it's a bit better at the top end, it used to struggle to 130 on the old engine and setup, but now it zips up there and has plenty to go :)

Don't know what the difference is between the 2, maybe they're a slight change in the years, or yours are actual HRC?