andyldean wrote:


On closer inspection the pipe in my hand is a breather so that should be easily sorted the other one running off the back of the inlet manifold is not so easy.

Could I just block this one off?
I am also struggling to find a workshop manual for the 4v. Is it to be found in the downloads? I cant find it thats all.
Thanks in advance :-)

andyldean wrote:I am also struggling to find a workshop manual for the 4v. Is it to be found in the downloads? I cant find it thats all.

Laitch wrote:

andyldean wrote:I am also struggling to find a workshop manual for the 4v. Is it to be found in the downloads? I cant find it thats all.

You can find a scruffy pdf here.

Motorbike Mike wrote:On my 4 valve track bike both of my crankcase vents go into a breather bottle. It runs just fine and ticks over without any problems.
There's not that much to take care of when you look at what's left after removing the airbox.

Motorbike Mike wrote:Sometimes called a catch tank, it's a container that all overflows and breathers must deposit into on race bikes as a bike pumping oil/fuel/water out onto a race track would be obviously disastrous.

This kind of thing below although I made my own but as I'm away at the moment I can't show you mine.

BobT wrote:

Motorbike Mike wrote:Sometimes called a catch tank, it's a container that all overflows and breathers must deposit into on race bikes as a bike pumping oil/fuel/water out onto a race track would be obviously disastrous.

This kind of thing below although I made my own but as I'm away at the moment I can't show you mine.

Great information there I never realised that there was such a thing. I feel another baby feeding bottle is needed, just like the one that I use for my coolant overflow. 
I am not sure that I want to do away with the airbox yet. The pictures that I have seen of the four K&n type filters looks like a dogs dinner to me.

andyldean wrote:Ok blanked off all the pipes etc and now dont seem to have any air leaks.

But the motor dies when I rev it.

Certain its a fuel problem of some description and more than likely something to do with the original airbox removal.
Any ideas?

Motorbike Mike wrote:The motor will of course run differently because you've taken the velocity stacks off with the airbox. My force fed airbox uses the stacks-maybe that's the difference here. If you make a significant change to an intake system you're going to have a little experimentation on your hands.

Kafflut wrote:

Motorbike Mike wrote:The motor will of course run differently because you've taken the velocity stacks off with the airbox. My force fed airbox uses the stacks-maybe that's the difference here. If you make a significant change to an intake system you're going to have a little experimentation on your hands.

My 4-cylinder car, 2007, has a single throttle body. Why does the K100 have four? It seems to me one can do away with synchronization problems if there was only one.

I recently made an "air flow" measuring jig & spent several hours adjusting the inter TB linkages (on the bench). Then fine tuned the TBs on the bike. My engine is running fine. I'm not about to rip out the four TBs and replace them with a single TB. I ask the question because I'm thinking if in the future I have to work on them, they become U/S, is a single TB not an option?