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Old 12-04-2009, 08:04 PM   #16
Fubars
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Joined: Aug 2003
Location: Ventuna, California
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I like looking at older KTM's. There's one for sale in my area, but I just can't swing another bike in the garage.

http://ventura.craigslist.org/mcy/1491698889.html



Orange flames---that's just too hip!

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Old 12-06-2009, 06:57 PM   #17
mbmt OP
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Fcr 39

Hey fellow RXC riders, I have a questions for ya...

I have a line on a Keihin FCR 39 carb...I know a FCR 41 would be better, but would the FCR 39 work? Like my privious posts have stated I have a '96 KTM 620 RXC.

What do you guys think?
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Old 12-06-2009, 09:01 PM   #18
demononthebrakes
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If your bike has that pos Quicksilver go for it. It will run soo much better.
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Old 12-07-2009, 07:01 AM   #19
xr400r
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interesting that these older bikes had USD forks while some of the newer 2 stroke excs had conventional forks
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Old 12-07-2009, 08:57 AM   #20
heinej
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Thumb

Wow!! That's nice.

That bike looks like new!! I would love to have some of those decals. Haven't even tried to see if they are still available from KTM just because of the crazy high price... Mine had a cool purple "620" decal on each side of the rear fender that I blasted off with the hose on accident. Sure wish I could find a set of those.


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Originally Posted by Blakebird
Purple rocks!


'95 LC4 400 Super Competition
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Old 12-17-2009, 12:32 PM   #21
mbmt OP
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Just wanted to keep this thread alive...

What do you guys think about riding the 620 RXC for extended periods of time on say, the interstate or a paved country road. I'm talking like three to four hours of at least 70 mph on a paved road. Do you think the 620 is up for it? Would I have to make some serious mods to the bike ie: oil cooler, gearing, etc.

I know the 620 is basically a big dirt bike with blinkers, but its the only bike I've got and I want to ride everywhere I can.

If I do ride it like I have described, what do you think the life expectancy would be for the bike.
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Old 12-17-2009, 07:48 PM   #22
Blakebird
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Quote:
Originally Posted by heinej
Wow!! That's nice.

That bike looks like new!!
It should - the bike was a '95 and I bought it in mid '98.
It was a great bike - came with Dick's suspension, an Uptite Racing pipe...
The Dell Orto was perfect once the shop got the jetting dialed in.



Quote:
Originally Posted by mbmt
What do you guys think about riding the 620 RXC for extended periods of time on say, the interstate or a paved country road. I'm talking like three to four hours of at least 70 mph on a paved road. Do you think the 620 is up for it? Would I have to make some serious mods to the bike ie: oil cooler, gearing, etc.
Many 640 Adventures have covered a lot of ground that way, with essentially the same LC4 motor. How is the gearing of the RXC compared to say, the LC4e? Is it geared more like an XR650L than an XR600R?
With that much use, stay on the maintenance - clean oil and check valve lash often until you know if they're staying put.
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Old 12-18-2009, 05:47 AM   #23
dibdob69
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Here's my KTM 620 LSE, It had never been off road when i got it but now its done 2 Rallys



dibdob69 screwed with this post 12-19-2009 at 12:50 AM
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Old 12-18-2009, 07:52 AM   #24
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Sweet ride! I always like to see other peoples 620's...it makes me feel like I'm not alone .

How many miles were the rallies were raced in? How did the old 620 do?
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Old 12-18-2009, 11:19 AM   #25
dibdob69
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Quote:
Originally Posted by mbmt
Sweet ride! I always like to see other peoples 620's...it makes me feel like I'm not alone .

How many miles were the rallies were raced in? How did the old 620 do?
We do about 120 miles a day and most Rally's are two day events, The bike could of gone a lot quicker if it had a quality rider on board and it didn't help that i had a stinking hang over on the second day of both events.
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Old 12-18-2009, 01:15 PM   #26
katumo_jtb
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I did a trip to Death Valley recently on my 620. Pics coming soon in a ride report. 2500 miles total, several 400+ mile days, lots of dirt. No problem on the 620 with 16/38 gearing, even with camping gear, spares, tools, etc. 75-80 on the highway was no problem (for the bike), except for the lack of wind protection (for me).

John
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Old 12-18-2009, 01:54 PM   #27
dwayne
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A few questions hanging there...

There are at least a few here who have used the FCR 39, and like it better because of throttle response and improved low end.

The 50mm conventional forks (50mm extreme), at the end of the nineties were a more developed and refined fork compared to the 40mm and 43mm USD forks that KTM was using at the time. They wound up on the SC and SX lines, as well as the adventures. My '98 LC4 400 SC had the 50mm. They still are a pretty good fork leg. I have 2 pair, one pair on my BMW F650 GS Dakar.

The LC4 engine is up for extended highway riding, the question is are you up for the LC4 (which I think in your bike may be uncounter balanced).
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Old 12-18-2009, 04:30 PM   #28
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Can't wait for the ride report featuring the 620 .

When did KTM go the counter balancer on the LC4?
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2002 Kawasaki ZX6r (sold)
2000 Kawasaki Ninja 250 cafe racer (sold)
2000 Yamaha WR400F (sold)
1996 KTM 620 RXC (sold)
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Old 12-18-2009, 05:34 PM   #29
katumo_jtb
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counter balancer

I think the first counter balanced LC4 was the '94 Duke? The 620 continued for a while (99?) in both versions. Dukes and Adventures had the balancer, SC/SX didn't, and I think RXC's may have gained them somewhere in the middle.

Death Valley pics in the mean time:

http://picasaweb.google.com/jbrody/DeathValley2009#

John
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Old 12-18-2009, 06:46 PM   #30
dentvet
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Quote:
Originally Posted by katumo_jtb
I think the first counter balanced LC4 was the '94 Duke? The 620 continued for a while (99?) in both versions. Dukes and Adventures had the balancer, SC/SX didn't, and I think RXC's may have gained them somewhere in the middle.

Death Valley pics in the mean time:

http://picasaweb.google.com/jbrody/DeathValley2009#

John
i think 96 is balanced. look at the left side cover. if it has three circles, its counterbalanced. if it has two, its not. look at the picture of the 95 vs the pic of my 97. 2 vs 3 circles. one circle is the crank gear, the big circle is the clutch and the small circle off the front is the counterbalancer. this third hump means that skidplates don't interchange between all lc4s.

btw, my 97 has the sudco fcr 41mm carb and it does have more response than the dellorto, which i thought was pretty good too. (stock exhaust)
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