NoBrakes, $600 for an FCR ready to drop in is a GREAT deal!!! I was thinking about buying one over here (Keihin is a Japanese company after all), but Jerry is cheaper! Straight out of the box they're like $700 in Japan. This country is too expensive :-(

Do you happen to know if Jerry has any FCR33's or does he only do the FCR35's?

 

just out of curiosity, where you at in japan?

 

I'm in Tochigi, about 100km due north from Tokyo.

 

who needs connectors? Solder and electrical tape will do just fine!
I can't wait to hear the reports about the CDI mod - who's gonna be first? My money's on Brian! He's got all the gadgets!

 

Not me. I've already spent my mad money for this month on the Keihin FCR. I think we'll be hearing from NavKLX first on on this one.

 

What's the problem it seems perfedtly clear to me

 

Wow 500-600 bucks for a Carb guys. Seems like a awfully lot for just a carburator. I know when I put the Mukuni HSR42 on my Harley I got it for about 275 from ebay and I thought that was a lot.

If I'm spending that type of money I would spend it on the 300cc upgrade instead. And to those of you who have done the 300cc upgrade do you think it was worth it as far as bang per buck. Also if one plans to do the 300cc upgrade down the road will that make a difference in the type of mods one does in the begining such as exhaust, free mods, etc, etc. Thanks in advance.


LV

 

I've already done the 300cc upgrade so the carb is really the next logical step for me. I did choose the 300cc upgrade first, since it offered more of what I wanted, low-end torque.

The Mikuni is quite a bit cheaper than the FCR, but I've heard better reports about the FCR. I've seen a brand new Mikuni TM33 for as low as $270. But take a look at what all the modern dirt bikes have on them - the Keihin FCR.

One of the reasons I chose the 300cc upgrade first was that can affect what carb is optimal for the bike. What is best for a 250 is not best for a 300, and vice versa. If I bought the carb first, that might not be the best carb later after a cylinder upgrade.

I personally think the 300cc was worth every penny. I really liked what it did for the KLX - more torque all across the RPM range. As for its pricing, it was a little more than an aftermarket pipe. But as always, do your own homework - it wasn't cheap so you'll want to feel good about plunking down that kind of cash. Basically I wanted to easily loft the front end over obstacles on the trail such as logs and stream crossings without pulling my arms out of socket. Can now do that with a blip of the throttle and a small tug on the bars, so it acheived my goals. This made the bike a lot more fun for me to ride. YMMV.

Based on how things work out for NavKLX, a new CDI might be in my future, too.

I'm slightly concerned about what this FCR pumper and a possible CDI replacement is going to do to my gas mileage, though. But only slightly.

 

Nobrakes

My understanding is the 300cc upgrade is about 4-5 hundread bucks and in australia they actually sell a Kit to do it. Did you buy a Kit or did you have to Piece it together from seperate parts and how much did it cost you if I can ask. Did you install everything yourself and was it hard to do. Finally do they make a bigger overbore then the 300cc that will fit. I have heard the make like 350cc kits for the klx300 and since the motors look to be the same couldnt one go with more then 300cc like say a 350cc upgrade. 400 would be real swett but probably not doable. For sure if I keep the bike long enough a 300cc upgrade will be in the cards.

As far as that jap wiring diagram goes I would think it would be pretty easy to translate. Just need to show it to a person who speaks / writes japanese and english.


LV

 

LV,

I installed mine myself and it wasn't too bad. I photo'd and documented my experience a month or so back on this forum.

The install:

https://www.kawasakiforums.com/fb.asp?m=49288

And what it felt like:

https://www.kawasakiforums.com/fb.asp?m=49745

Took a few evenings of work for me, would go faster now that I've done it once. Also, I accidentally poked a small hole in my radiator so that slowed me down a bit as I was forcibly entered into Radiator Repair 101, self taught curriculum. [:@]

I've seen reference to larger boards being used - 331cc, 340cc, and 364cc. These are usually talked about in reference to "Stroker" doing the work, a company that is no longer in business to the best of my knowledge. In fact, Jerry Leighton of Four Stroke Works where I got my FCR carb is formerly of Stroker so I'll try and remember to ask him the next time I speak with him. But yes, it should be possible to bore it out even more and get even more displacement. That's always and option for the future. But as of yet, I have not seen a web site or other on-line place where can exhange money for the larger bores. Again, most of the references I've seen are a little old and revolve around Stroker who is no longer in business.

But the 300cc is very easy by comparison - just buy the KLX300 parts to do the job, remove the old parts, bolt on the new parts, do a little break-in of the new sleeve / rings, and you are good to go. I bought the parts individually and got the parts list from MaverickAus (Garry) who supplied the part numbers off his kit he got for free with his bike in Australia. I actually first tried to buy his kit from him, but he would have none of that nonsense. It was worth a try.

He posted the parts list on the "common part numbers" sticky thread at the top of this forum. I bought my parts from RonAyers.com and I think the total was just under $470, not including shipping. I dissassembled Thursday evening after work. Cleaned gasket surfaces and reassembled Friday evening after work. Repaired radiator Saturday morning - let JB-Weld setup for about 8 hours. Broke in the cyclinder and rings Saturday evening. First real test ride on Sunday, so it was a good weekend of wrenching for me but well worth it. I now have nearly 20% more displacement which is very noticable and learned a lot, even about things I didn't want to such as radiators.