Jeff, I 100% agree with you. The APi box of tricks controls absolutely everything unlike a piggyback controller. And has way to many options for the amateur guy just wanting a power boost etc.

Getting this bike running was always going to be a bit of a gamble, as i could
not find one real success story on any forum using conventional piggyback controllers. If the bikes we're running fast then the idle suffered or if the idle/low speed was ok then the top end was suffering....on no forum was a bike with a 330+ kit running good low/med/high.

Why i wanted this system is it has delivered what i wanted with the 330sm with cams, as my bike is running great at the moment......something NOT so many people have achieved with a 330 kit in Thailand or anywhere for that matter with EFi.

Sometime very soon i will take my bike to APi Tech in Bangkok & have Mr Pattapong or someone experienced with the software give me a full tuning session on a dyno!! They say they can do 3 MAPS for me, a grunty/torque low down thumper setting. A smooth fuel efficient cruising MAP & a super fast hooligan MAP for street racing etc.......can't wait

 

Sorry graham, I can't really give a full report as I still can't fully use the APi software!! Me & my old school mechanic just bolted in the big bore kit & the cams, then put in the Beet injector & took out the secondary throttle......the tuning is all APi.

As you can see in the video, i'm just watching my bike getting remotely tuned by APi tech guy over the internet!!

All i can report is the bike runs well.....in fact it is as quick as any standard DRz400, just with snappier acceleration & lighter handling as well. I have got to ride a few DRz's in my time but don't get me wrong a well tuned (pipe n jetted etc) DRz will leave me behind!! But not by to much.....

 

I was assuming that the mix your EJK controler order to the injector is suitable for a cold engine, and when the engine warms up it becomes too rich. But you may be right about an automatic choke on the kawa ECU. Maybe this can help diagnose the problem:

Remove your aibox cover: if your problem gets worse, you're too lean, if it gets better you're too rich. Either way you may need to bring the issue to EJK and have some guys there advise you on this specific issue with their device.

As for the big bore kits on efi KLX, not too much info.
Joel is probably the success story in the field with a kk330! He changed ECU/injector/cam to get the performance of his kit and he's still getting some tuning done. ( Btw Joel, Chat thinks Pap from Epap stunt shop is a better tuner than Pong, i'll try pap when i'm done running in )

A 300 kawa kit is likely more forgiving as it runs decently with API ECU or with the power commander on stock injector. If you're not in thailand or a mechanics yourself, power commander or EJK is the easier solution.

As of my klx, still running in for a couple hundred km, only the top is new my bike has 10 000k on the clock. Right now it has very nice torque but the acceleration is not like wow. I'll start tuning and modding the throttle body and tuning again, reports in a month.
Many guys have the butterfly removed, any improvement report appreciated here and I really want to investigate the versys nozzle, really looks the same as KLX, and is suitable for a hi revving 325 cc....

cheers,
Oliv

 

Thx for the tip owelter, let me know how your tuning session goes & if good can you pass on the contact info...cheers

EDIT: Just got my Thai friend to call the stunt shop & she spoke to Pap & Pap said he doesn't really do much tuning he just sells APi boxes, he recommended using a guy called Pong for tuning!!! HHHmmm

 

Well maybe Chatbovon is really not friend with the chaps at API... He told me Pap was the master...

 

I chatted to EJK tech guy, Matt Stoken. He checked the 250 EJK and reckons it is not delivering enough fuel from idle to cruise to handle 300 jug. He is checking with sales guy if they can send me a RE-Programmed unit for the 300. If they do, then it is great service and I will sing their praises, lets wait and see.

 

That's excellent news Graham, some tuning with some competent mechanics will surely fix the problem. Let us know the result.

@Joel: I was looking for Beet injector at Motorcycle Parts & Accessories from Japan - Webike and i can't get a pic of the device, it is a nozzle only isn't it?

 

I'm not convinced you actually need it but here is a picture I took before fitting the injector.

 

thanks Joel, just trying to figure out what i can be doing with the injection beside the ECU.
I'm at 84 km per tank right now, running in the engine top end, not going for it, i figure there's something wrong with the tuning. Does yours pops and detonates like crazy on deccelerations?

 

You must be running super rich to be burning so much gas. I am still getting 120 km per tank with 300 kit.{ Fuel light to fuel light, 20 Km / L . Previously 25 Km/L } I cannot run it in cruise mode so am riding uneconomically, mostly in acceleration mode to keep the the revs smooth.

Mine does backfire on deceleration if I ride quite hard.