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Search took 0.04 seconds. Search: Posts Made By: katumo_jtb
Forum: Thumpers 05-05-2013, 02:15 AM
Replies: 552
Views: 55,518
Posted By katumo_jtb
OK, I misunderstood, I thought you had the timing...

OK, I misunderstood, I thought you had the timing gear off. Since you didn't, there's no way the valve timing could be off. It doesn't matter if things move around with the valve cover off, the cam...
Forum: Thumpers 05-04-2013, 09:02 PM
Replies: 552
Views: 55,518
Posted By katumo_jtb
The timing gear being off wouldn't throw off...

The timing gear being off wouldn't throw off spark timing as the spark happens relative to the crankshaft position, which hasn't changed; the sensor for spark timing is in the stator cover. But it...
Forum: Thumpers 05-04-2013, 03:38 PM
Replies: 552
Views: 55,518
Posted By katumo_jtb
The recent changes were timing gear and valve...

The recent changes were timing gear and valve lash, so it's probably one of those, as you said.

Are you sure you adjusted the valves at TDC on the compression stroke? You can lock the engine at...
Forum: Thumpers 04-08-2013, 12:41 AM
Replies: 22
Views: 1,497
Posted By katumo_jtb
That's great, glad to hear the OBEKR needle seems...

That's great, glad to hear the OBEKR needle seems to be working. Thanks for posting back.
Forum: Some Assembly Required 12-31-2012, 12:13 AM
Replies: 667
Views: 163,130
Posted By katumo_jtb
I guess there's a reason BMW went to a different...

I guess there's a reason BMW went to a different setup on later models. It can be a slight compromise sometimes where you get a cross-over at a certain RPM. However I've never found it to be a...
Forum: Some Assembly Required 12-30-2012, 11:52 PM
Replies: 667
Views: 163,130
Posted By katumo_jtb
Never seen one like that, but if your FCR has the...

Never seen one like that, but if your FCR has the open/close dual-cable setup like mine, you could run a short cable from the "close" side of the first carb to the "open" side of the second one. ...
Forum: Thumpers 12-01-2012, 01:04 PM
Replies: 552
Views: 55,518
Posted By katumo_jtb
OEM fenders from later year KTM's will fit. The...

OEM fenders from later year KTM's will fit. The bolt pattern is the same, you just need to make sure you get a fender with the "nubs" that hold the mask in place. I'm using a fender from an '04 625...
Forum: Thumpers 11-26-2012, 12:14 PM
Replies: 154
Views: 17,528
Posted By katumo_jtb
I don't believe the fender in that picture is...

I don't believe the fender in that picture is actually the one for sale. It looks too narrow for the LC4 sub-frame. I think it's more likely that's the same Acerbis fender mentioned earlier in this...
Forum: Some Assembly Required 11-14-2012, 09:45 AM
Replies: 369
Views: 145,123
Posted By katumo_jtb
That's a good point, the 604 should be a near...

That's a good point, the 604 should be a near bolt-in given how many parts the ATK shared with the KTM. The swingarm and rear frame area looks very similar. However those engines are not easy to...
Forum: Some Assembly Required 11-14-2012, 12:18 AM
Replies: 369
Views: 145,123
Posted By katumo_jtb
Hey Lukas, I hope you're still checking this. ...

Hey Lukas,
I hope you're still checking this. I have an LC4 rolling chassis with no engine. Looking at used engines, the BMW 650 single seems to be much more available than LC4's (so, cheaper),...
Forum: West – California, the desert southwest and whatever is left 10-17-2012, 06:23 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
Nice ride. I'm jealous, hope to get back out...

Nice ride. I'm jealous, hope to get back out there soon. :freaky
Forum: Thumpers 10-17-2012, 09:37 AM
Replies: 22
Views: 1,497
Posted By katumo_jtb
I can't speak to the lack of response to the...

I can't speak to the lack of response to the pilot jet/fuel screw changes, but my personal opinion is that the JD needles are just not thick enough at the base an uncorked LC4. I think our problem...
Forum: Thumpers 10-16-2012, 09:05 PM
Replies: 22
Views: 1,497
Posted By katumo_jtb
I'm tuning with a wideband 02 sensor, so I can...

I'm tuning with a wideband 02 sensor, so I can see the results immediately. I'm too rich at 1/8 throttle already, adding squirt there just makes it richer. Delaying the squirt is a compromise for...
Forum: Thumpers 10-16-2012, 07:54 PM
Replies: 22
Views: 1,497
Posted By katumo_jtb
I ended up ordering an OBEKR needle. I measured...

I ended up ordering an OBEKR needle. I measured the JD red needle and it's pretty close to the OBEKR, but the JD needle has less taper and a narrower base. I believe the OBEKR will be leaner off...
Forum: Thumpers 09-10-2012, 09:09 PM
Replies: 552
Views: 55,518
Posted By katumo_jtb
Do you have oil in the frame? The correct amount...

Do you have oil in the frame? The correct amount for bikes with oil in the frame is over 2 quarts. It might be 1.3 in the crankcase and 0.8 in the frame or something like that. Since you mention...
Forum: Day Trippin' 08-24-2012, 11:49 PM
Replies: 16
Views: 1,682
Posted By katumo_jtb
Cool ride Mike. Those are some of my favorite...

Cool ride Mike. Those are some of my favorite roads in California -- Hwy 1, Usal, Briceland, Mattole, 36, 89, and 70. Great idea to put them together in a loop. I'd love to do that ride sometime....
Forum: Thumpers 08-06-2012, 11:10 PM
Replies: 552
Views: 55,518
Posted By katumo_jtb
Sounds like you have been doing your work sorting...

Sounds like you have been doing your work sorting out the overheating. The one thing I'll throw out there is a possible restriction in fuel supply before the carb. I use Motion Pro quick disconnect...
Forum: West – California, the desert southwest and whatever is left 08-01-2012, 01:05 AM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
Aww man, what happened to Eric's KTM? We need...

Aww man, what happened to Eric's KTM? We need more LC4's on this thread.

https://lh4.googleusercontent.com/-rIhQx3vhopg/UBjetTxm9GI/AAAAAAAADtk/mExcSj9oyis/s640/DSCN0031.JPG
Forum: Thumpers 07-30-2012, 01:20 PM
Replies: 552
Views: 55,518
Posted By katumo_jtb
A Mikuni BST, DellOrto PHM, or Keihin FCR carb...

A Mikuni BST, DellOrto PHM, or Keihin FCR carb would do the trick for you. I have a spare BST and DellOrto. However they're jetted for a 620, you'd probably need to re-jet for a 400. The 400 was...
Forum: Thumpers 07-06-2012, 08:20 AM
Replies: 45
Views: 16,586
Posted By katumo_jtb
I ordered the gasket kit from KTM World in...

I ordered the gasket kit from KTM World in Georgia using the KTM part number, they had it in stock.

However, I also ordered some odds and ends from a Moto Guzzi site that had a good selection. ...
Forum: West – California, the desert southwest and whatever is left 05-30-2012, 11:31 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
Touch up the exposure and that's front page...

Touch up the exposure and that's front page material. Nice shot!
Forum: Thumpers 05-23-2012, 10:59 PM
Replies: 22
Views: 1,497
Posted By katumo_jtb
Well, I called up JD and got the word from the...

Well, I called up JD and got the word from the source. He said there are several things you can do, but the most straightforward fix is the needle. The JD red needle has the biggest base diameter...
Forum: West – California, the desert southwest and whatever is left 05-22-2012, 08:24 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
Love that last pic. What a beautiful area, I...

Love that last pic. What a beautiful area, I gotta get back out there soon.
Forum: Thumpers 05-22-2012, 10:10 AM
Replies: 22
Views: 1,497
Posted By katumo_jtb
I have a non-leak jet float bowl, stock...

I have a non-leak jet float bowl, stock diaphragm, blue spring, and BK mod. I backed off the AP timing just a hair so the squirt doesn't start until a little over 1/8 throttle (since I'm rich off...
Forum: Thumpers 05-22-2012, 08:37 AM
Replies: 22
Views: 1,497
Posted By katumo_jtb
The bike is a 95 620. It has a forged Wossner...

The bike is a 95 620. It has a forged Wossner piston on a fresh bore, nickel plate, and rings. It also has a fresh valve job with rally cam and valve springs, full Uptite exhaust and open air box. ...
Forum: Thumpers 05-22-2012, 12:04 AM
Replies: 22
Views: 1,497
Posted By katumo_jtb
FCR Tuning: way rich just off idle (LC4 if it matters)

I put an FCR41 on my KTM LC4. I've done a lot of experimenting throughout the throttle range, and the one thing I absolutely can't cure is a way rich condition just a hair off idle -- up to about...
Forum: Thumpers 05-17-2012, 10:14 PM
Replies: 552
Views: 55,518
Posted By katumo_jtb
I've got an Emig stabilizer on my 95. They're...

I've got an Emig stabilizer on my 95. They're not cheap, I found it used for a good deal. The biggest problem is fitting the post. The old gas tanks go right up to the triple clamp so there's very...
Forum: Thumpers 05-17-2012, 12:14 AM
Replies: 552
Views: 55,518
Posted By katumo_jtb
That's a sweet looking ride. Really nice...

That's a sweet looking ride. Really nice exhaust. Who makes it, and which carb are you running?
Forum: West – California, the desert southwest and whatever is left 04-29-2012, 01:44 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
I put the round rubber things on the KTM and rode...

I put the round rubber things on the KTM and rode through Clear Creek yesterday. It's an awesome time to ride there -- the mud is gone, weather is clear and cool, and the scenery is great. ...
Forum: West – California, the desert southwest and whatever is left 04-23-2012, 08:15 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
I learned a few things this weekend. A Miata...

I learned a few things this weekend.

A Miata can haul a snow bike with 2 people and gear up to 7000 feet (just barely).
...
Forum: West – California, the desert southwest and whatever is left 03-15-2012, 10:54 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
I've wanted to do CBDR/OBDR for a while. I had...

I've wanted to do CBDR/OBDR for a while. I had some tracks laid out last year but never got time. I just started a new job so I wont have the vacation days until later this summer, but I would be...
Forum: West – California, the desert southwest and whatever is left 03-13-2012, 05:55 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
If you have time for a less direct route, try...

If you have time for a less direct route, try taking highway 33 through the Los Padres Nat'l Forest and 25 between San Benito and Hollister. If you want some graded dirt, you could take the road...
Forum: Thumpers 02-05-2012, 09:32 PM
Replies: 154
Views: 17,528
Posted By katumo_jtb
Just a word of caution about ordering overseas, I...

Just a word of caution about ordering overseas, I ordered some plastics from the above mentioned vendor last year. They sent me the wrong ones, then gave me the runaround, then stopped responding to...
Forum: West – California, the desert southwest and whatever is left 01-05-2012, 02:43 PM
Replies: 3,920
Views: 329,187
Posted By katumo_jtb
There's usually no traffic on Tunitas creek...

There's usually no traffic on Tunitas creek :wink:

I'd love to join, not sure if I'll be able to make it. Have fun!
Forum: Thumpers 12-07-2011, 12:17 PM
Replies: 18
Views: 2,981
Posted By katumo_jtb
I haven't bought a bike from them because they...

I haven't bought a bike from them because they don't ship, but I give all my other KTM business to KTMWorld in Georgia. They're great folks, very helpful and really know KTMs. You might be close...
Forum: Thumpers 12-02-2011, 11:49 AM
Replies: 45
Views: 16,586
Posted By katumo_jtb
Whether you can do it without replacing gaskets...

Whether you can do it without replacing gaskets probably depends on the age of the bike. I did the gaskets on mine because they were 15 years old. I didn't want to put everything back together only...
Forum: Thumpers 11-28-2011, 12:36 PM
Replies: 45
Views: 16,586
Posted By katumo_jtb
There aren't really any trick parts for this...

There aren't really any trick parts for this carb, so the only ways to improve running are keep it clean, set the float height, and improve fuel mixture. You can clean it and set float height pretty...
Forum: Thumpers 11-26-2011, 12:57 PM
Replies: 45
Views: 16,586
Posted By katumo_jtb
Bottom vent is the float vent. Do not tighten...

Bottom vent is the float vent. Do not tighten it! If there is gas leaking it is probably your float height set too high or a leaky float valve. My money is on the float valve, since the carb is...
Forum: Thumpers 11-17-2011, 11:24 AM
Replies: 22
Views: 1,868
Posted By katumo_jtb
Yes I did, thanks for the comment and the...

Yes I did, thanks for the comment and the supporting research. I did not know that fuel economy would improve up to 15.4, that's news to me.
Forum: Thumpers 11-16-2011, 05:33 PM
Replies: 22
Views: 1,868
Posted By katumo_jtb
Robertson: Interesting... looks like you're at...

Robertson: Interesting... looks like you're at sea level too? That seems like a very lean setup to me, however I have a lot of mods in my motor. I had the valves ground and ported, cylinder bored,...
Showing results 1 to 40 of 359
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