Rev's holding

hey all, been a while

Before i came over here i had my 24k service done and i noticed on the ride back from the mechanics that the revs 'held'. say id rev it up to 4k then release the throttle the revs would hold long enough to be noticable then drop back down. The throttle does snap back like it should.

Would i be right in assuming they fucked the timings up? when i go back to aus will riding it damage the engine?

Cheers, brucey

 

If you push the throttle back, (as in actively back off) do the revs go down quicker?

 

yep I was thinking throttle cables, or a vacuum tube not connected
try turning the bars without hold the throttle and see if that cause the the engine to rev. if so they have moved or something is pushing against the cable/throttle mechanism

 

Going logically:

The throttle butterflies are slow to close.
The throttle snaps back as it should. Therefore the problem is probably not the throttle grip return spring.

If manually returning the throttle to position slows the bike faster then it may be that the throttle cable is sticking in its casing and needs lube, the cable is routed wrongly or snagging against something, the throttle butterfly spring is not performing well....?
Try moving the cable around, turning the bars, looking for snags along the routing of the cable. After someone pushed over my first trailbike the throttle would stick due to a damaged grip and I had instant cruise control. Unrolling the throttle would still slow it down but the grip itself wasn't unwinding.

If manually returning the throttle doesn't speed things up then it might be within the TB itself.

Can you get a look at the TBs and see how they're moving and if you can move them from the other end of the cable where it connects to the TB?

That said though, will you be in a position to take it back to them and let them sort it out?

Any other suggestions? That's all I can think of.

 

Sometimes the throttle grip can bind on the switch block stopping/slowing the rate of return of the throttle to the closed position. Just a thought.

 

Jaffa, that's what I had happen with my old trailbike but I think Brucey's throttle is snapping back into place quicker than the butterflies are closing.

 

are new ZX6's fly-by-wire ? If so.. could just be a whacky TPS... ??

 

pushing back on the throttle doesnt help, still has that noticable pause before dropping. Turning the handles bars doesnt make the engine rev either. i dont think its fly by wire, cant be 100% sure though.

when i get back to darwin i will be able to take it back without any dramas... still safe to ride? or should i chuck it on the back of a ute??

thanks for the help so far