Another 08 busa valve help thread. Please help

[6002abusa]

OK. First trip out on the dope (36hp) and I hurt the motor. Im pretty sure its in the top end. I think a shim fell out. I think its gonna happen again if I dont at least upgrade the springs. Im thinking Carpenters. With better valves or springs I can put more juice to it. The bike was tuned for the shot. I only got 6 passes out of it.
The question is as follows.
1. Can I just change the springs and keep the Ti stock valves?
2. If I go with s/s valves, will I need to have machine work done for the valve job?
3. What would yall do? Thanks in advance.

[mrultra1300r]

if you got the money go with the ss valves(just lap in unless you have a bunch of miles) and carpenter 60# springs and if money is tight go with gen 1 springs and your ti valves. let me know i have probly 5-8 sets of gen 1 springs with 0-1000 miles on them for cheap.

[6002abusa]

I was thinking about keeping the Ti valves and pre 08 stock springs. Im wondering if its worth it to drop in a cam while Im in there. Im gonna look into the Carpenter springs. If I go 60# wont I need better retainers?

[6002abusa]

I hate the well while Im in there thoughts. Im thinking carpenter springs and  ferrera s/s valves. Now I need to know if i can run that with stock 08 retainers, pre 08 stock retainers, or if I will need high$ Ti retainers.

[mrultra1300r]

99-09 retainers are all the same

[6002abusa]

Ok s/s valves and 60#springs. I still have to get into it and make sure this is the problem.

[ZX-ALAN]

Get into it Robert...

I will show you how to lap the valves.

[6002abusa]

Its under the knife as I type this.

[6002abusa]

Lost shim on #3 cylinder exhaust side.

[ZX-ALAN]

Cool, glad it was nothing melted.  Get the valves/springs in it and have no more problems.   That was a fuck up n suzuki's part putting those junk ass valve springs in them...

[Draco1340]

Lucky you didn't spit a keeper and drop the valve.

Light springs "freeing up HP" never made sense to me... The extra camshaft torque to lift the valve against a heavier spring is mostly gained back with the torque the spring generates on the back side of the cam.  I'd be curious to know if the difference between 28# springs (what I measured on my Gen II head) and 60# springs is more than a single HP.  Doubt it.

[6002abusa]

Alan. I need to call Mark still. I ordered the Carpenters, 48hp and 60 hp jets (not sure if the fuel system can handle 60) and the gasket. Schnitz says 3-25 delivery.

[PetriK]

OK. First trip out on the dope (36hp) and I hurt the motor. Im pretty sure its in the top end. I think a shim fell out. I think its gonna happen again ...

Just to understand why, is this bike with an ignition shift kill box ?

[Got-Busa?]

I believe he is using the Bazzaz quick shifter.

[6002abusa]

The Bazzaz is doing the kill for the shift.