Howdy.
Have been riding a VFR400 for about 4 weeks now - just upgraded from an FZR250. Lovin' it, to say the least.

I noticed the throttle response was kind of crap - I measured 7mm of free play before the cable was engaged when trying to roll the throttle on. That was easy enough to adjust.

But there's also a problem with the throttle return - it's *really* slow. If you roll the throttle on and then take your hand off, it sloooowly rolls itself off again, revving all the while. I can't see an adjuster for the return cable up by the lever... Is this just normal behaviour?
It's probably worth noting that with the engine off, if you roll the throttle on and then let go, it just sits there - doesn't return at all.

Great forum btw!

welcome max'f

you can adjust the throttle cables at the carburator end which will be much better,

try the basics, lube the cables, and check for any frayed wires, lube the throttle tube on the bar, and in the houseing where the cables attach, also make sure the cables are routed the right way.

hope this helps

Rick

maxfacta wrote:But there's also a problem with the throttle return - it's *really* slow.

Check also that the grip isn't rubbing on the handlebar or bar end weight.

Check in this order:

1. is the grip rubbing on the bar end weight? Trim grip or remove it, clean and glue on further up the twistgrip. EBay for grip glue.
2. are the cables adjusted too tight? With dual cables this will cause tightness, so allow a little more slack.
3. are the cables themselves stiff? if so, lube with a silicon spray (e.g. GT85) only, DO NOT use oil or WD40. Oil will destroy the nylon cable liner over time - if this is already been done you may need new cables as the liner absorbs oil and expands, so the cables run tight.
4. is there rust on the clip-on underneath the twistgrip? If yes, sand the bar smooth and clean inside the twistgrip, but DO NOT lube as any grease you use will only cause a gummed-up motion. At most, put a wax polish on there like Mr Sheen.

Hope that helps!