GSXR K4 Swingarm Swap

[El Gringo]

Right possibly problem solved

Drilled the slide and it now lifts like the other 3.

Found why no4 was filling with fuel, big bit of crap stuck in the float needle

So tried it again and it was still over fuelling, really rich and struggling to run until it was nearly out of fuel, then it ran great for a minute or so until it ran completely out of fuel

So carbs back off, double checked float heights, all ok, maybe they should be higher so jacked them up a bit to shut it off earlier.

It was only after a bit more interwebz research i realised the mistake i'd made

I'd forgotten to put the 4 rubber blanking plugs back over the pilot jets! 

So, fortunately I hadn't put the carbs back on, quick off with the float bowls, reset the float heights to 15mm put the plugs back in and fingers crossed that should sort it out!

[El Gringo]

It's amazing how much better things work when you put all the parts in..............

[Unique]

Hi
Just before I started my present rebuild I had trouble with bike running rough and found the same 4 rubber blanking plugs looses in pilot jets, wasn't sure if this was the problem? but now I'm sure was.. Thanks!!!     

[El Gringo]

Its amazing the difference it made Unique

Although its not perfect just yet, its still a bit rough on idle and the carbs won't balance, 1&2 balance and 3&4 balance but there isn't enough adjustment to get the 2 pairs together.

Have gone out to 2 1/4 turns on the mixture screws as per most peoples settings in the Jetting thread to see if that helps.

Now i need to tidy up the wiring loom and try it with the tank on.

I started a list of little things still to do, ended up at 2 sides of A4!!!

[El Gringo]

Litetek Carb seal kit on its way, and the carbs are off for a warm dunk in an ultrasonic tank this afternoon, hopefully this will help the fluffy idle

[El Gringo]

Hi All

Managed to do a bit more, got the carbs rebuilt and back on and now we have brakes.

I'm struggling at the moment to get it to pick up from idle when in gear, as in when you're pulling away.

I don't think the lack of filters is helping so I need to get on that asap. It bogs down and almost cuts out before the revs pick up as you let the clutch out, once the revs are up over about 3000-4000 it takes off like a scalded cat.

Maybe just too lean without filters. I notice most people are running the mixture screws around 2 - 2.5 turns out, currently mine are the stock 1.5 so i might try coming out a turn as well.

https://www.youtube.com/watch?v=4pn7SlS6hOw

Quick video of the second run up

[TJS]

This should help:

http://www.factorypro.com/tech/tech_tuning_procedures/tuning_carbtune,CV,high_rpm_engines.html

Get their Stage III jet kit and orger one size bigger pilot.

[El Gringo]

Funnily enough, I was reading that just this morning TJS 

I'll get some filters on first and then see about ordering a stg3 kit

Kinda running out of money now, so the final painting etc may take a while

[El Gringo]

Filters now fitted,

Having a few starting issues, sometimes will start fine, then once its warmed up it really struggles and won't even cough

Seems like fuel starvation but i'm mindful that the CDI units can be a known issue.

When it does run though its sounds perfect, picks up sweet as a nut and idles really smooth now.

[El Gringo]

Tank is now cleaned out, had a few issues with bits of crap in the tank.

Installed an inline filter to help keep the carbs clean.

Still having a little bit of a problem with it bogging of the bottom again, it had stopped doing it but now its come back, quite odd.

I think i'm going to go back through the carbs one more time and check the settings.

It seems as if the float bowls are taking a while to fill so will double check, so close and yet so far!

[TJS]

Things to do in 2nd gear:
* set idle
*set air screw

Make sure when you blip the throttle that the rpm returns to idle quickly, with out dropping to almost cut off, and responds to another throttle blip.

[El Gringo]

Thanks TJS,

I think it's a little lean as the revs are hanging a touch.

I'm not quite sure how/what you mean in 2nd gear?

[TJS]

Hanging throttle:
* check cable for binding
if carbs
*adjust air screw...usually they need to be turned out another 1/4 to 1/3 turn

After adjusting the carbs and idle setting in N, then put in 2nd gear, hold clutch in and blip throttle a few times. Bike should not respond differently. I think this is posted on tuning section of Factory Pro.

[El Gringo]

Cheers TJS

I've not heard of the testing in gear before, will give it a go

[El Gringo]

Right, finally I think I've cracked it.

Last thing I checked, the emulsion tubes were massively ovaled

Stuck some new ones in this afternoon, Boom! nice tickover and its rideable!

Now its time to fine tune and start the final build