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rpt50

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  1. Experiences like this make me wonder if bikes really are getting better. Anyway, I recently was fortunate enough to pick up a 2004 KTM exc with less than 25 hours on the clock. The bike is all stock down to the hockey stick silencer, but at some point the rear tire was replaced with a Pirelli MT 43 trials tire. The bike had been sitting in a garage for a long time, so I cleaned the carb, replaced the fluids, replaced some rubber bits that looked sketchy, and I put on a new front tire as the original was rock hard. I left the Pirelli trials tire on the rear as it appears to be in good condition. I set the forks about 5mm up in the clamps as that is how I have run other KTMs I have owned, and the sag ended up being 110mm geared up on the trail, so I added two turns of preload on the shock. I did not get a chance to recheck the sag. Conditions were excellent at the riding area (damp sandy soil). I would describe the trials as tight but flowing eastern single-track. I have been riding woodsified YZ 125s almost exclusively for last several years, so that is where I am coming from. Engine: The engine is surprisingly strong. It felt stronger than a freshly rebuild 08 200 XC that was present. There is a good "braap" at the top of the rev range, but overall the main impression you get is smooth power from the bottom to the top--very impressive indeed! Despite the smooth running engine though, I am going to have to mess with the jetting, as there was a good bit of spooge. My initial impression of the gear ratios is not so favorable. Both first and second seem unnecessarily low (especially first), but because the motor is so smooth with good low end that even 3rd is usable. It will take more seat time to determine is this is something I will get used to, or if I need to start messing with the final drive ratio or even the gear set. I think the really low 1st would be great for super slow technical single track, but I never really ride that stuff. Suspension: This was a lot better than expected. The clickers were still at the factory settings so I left them alone. The suspension was not nearly as plush as late model KTMs have become, but it felt pretty good the faster and harder I rode. As I became more comfortable on the bike and the pace picked up, I began to think that I probably won't do anything to the suspension other than normal service. Is it as good as my woods-revalved YZ suspension? No. But it's a hell of a lot better than, for example, trying to ride MX suspension in the woods. Handling: Overall the bike feels lighter and more flickable than a 250, but not as quick and fun as a YZ125. Part of the issue is the stock tank. It must hold around 3 gallons, but it makes the bike feel wide around your shins. If you don't need the capacity I think swapping on an SX tank would be a great mod. I also wonder how much effect that rear tire had. It is huge and has a square profile. It did hook up great, but a tire with a more rounded profile might improve the handling. I also use a Scotts stabilizer, and I am definitely adding one to this bike as it feels kind of twitchy. The bars were also at stock length, which is too wide for Georgia single track, so clipping trees without a stabilizer was definitely not building my confidence. A mount kit for my stabilizer will be ordered today! Overall this 04 200 is an impressive motorcycle. I think folks would buy it if it were being sold today as a new model.
  2. rpt50

    04 KTM 200sx starting issues

    Just clean the carb. You let it sit with gas in it. Now the jets are likely clogged.
  3. rpt50

    YZ125 Over Rev

    I have a PC pipe with a stock silencer currently on my 03 (previous generation motor). While I don't think it does much for overall power, I specifically like it for woods racing as it does allow me to hold a gear a little longer with higher revs. It definitely has better over rev than my 06 which is currently sporting the stock pipe and silencer. Not sure if the new motor would respond the same way with a PC pipe. As others have discussed, gearing is a big issue. In general, I think people gear down too much, which makes you shift more. Get yourself a couple of cheap sprockets break out the stopwatch at your favorite track. Remember that the butt dyno is a pathological liar. Stopwatch always tells the truth. Call me skeptical on the timing mods. Better check with Mr Stopwatch.
  4. rpt50

    YZ125 vs KTM150 EXC

    Thanks for the tips on the 200! Setting the sag is on the "to do" list for today, so I will start Thanks for the tips on the 200! Setting the sag is on the "to do" list for today, so I will start with 105mm. I'm sure I will have lots of questions as I sort this bike out. Motor seems fine as is for my conditions, so I will probably be focusing on suspension. First real ride will be this weekend.
  5. rpt50

    YZ125 vs KTM150 EXC

    I would disagree about the suspension. I have both an SSS YZ125 (06) and a pre SSS yz 125 (03), both of which have be revalved for eastern hare scramble racing by the same tuner. I find the 03 bike to be superior to the 06. It's not a huge difference, but the 03 works better in the woods for sure, and if I ever sell one, it will be the 06 As for the comparison (yz125 vs 150) here are my thoughts after riding numerous examples of the 150. 1. older 150s (pre 2016) just feel a little more powerful across the rev range. I find the Yamaha chassis superior 2. Newer (2016 on) KTM/Husky bikes are a different animal. They have better brakes, more power, and feel lighter than either of my YZ 125s (steel 03 or aluminum 06). Now how much of that translates into lap times, I do not know. But I suspect that it would not be a big difference. Is it worth it? That's what I've been wrestling with the last couple of years since I rode a 2016 Husky TC 125. The new 150 is unmistakably more powerful than a yz 125, but again, that's out on a fire road or other open area. Not sure if it would really make a difference whipping through the trees. 3. I do know that if I buy a new small bore KTM/Husky, it will NOT be the XCW model. I am a high rpm guy, and to me the gear ratios are all wrong on the XCW. 1st is way too low, and 2nd is too tall. The ratios just don't work for me. If I buy, it will be a TC or SX to get the close ratio transmission, and I will pay for a revalve. There's a guy who posts in the Yamaha section that goes by "Tuner". Check out his posts, He has both a YZ 125 and a Husky 150, and has discussed many times how they compare. Feel free to check in with me over the next few weeks. I just picked up a low hour (really low!) KTM 200 (04), and the first real ride will be this weekend. I will be glad to let you know how the bike compares with my YZs. I have been looking for this model bike forever. Before 07 the frame was a little smaller on the 125/200, so it fits me a little better than later model KTMs I have owned. This bike also has the really low 1st that I hate, but I think it may have enough torque to allow me to effectively use 2nd at race pace in the tight stuff.
  6. rpt50

    What mods are actually worth putting on?

    Nice! As for "bang for the buck", tires and suspension are the way to lower lap times (and of course more practice).
  7. rpt50

    My new to me 200 has a thermostat?

    I understand what a thermostat is and what it does. I just don't understand why this bike has a thermostat. Do the radiators have too much capacity or something? None of the other race bikes I have owned (including other KTMs) have had a thermostat. This bike will likely see some duty as a race bike, and lots of hard race-pace trail use, and a thermostat is just one more thing that could fail.
  8. The 2004 200 I just bought has what appears to a thermostat. It seems entirely unnecessary. What is the best way to eliminate this? Can one by some kind of spacer that eliminates the thermostat, or do you have to buy new hoses?
  9. rpt50

    The KTM 200 Club

    I'm not so much concerned (in fact, not at all concerned) with power and the hockey stick, as all I've been riding for the last few years are 125s. I'm sure the bike will have plenty of power. I mainly want to have that light-weight 125 feeling, and the hockey stick sure looks like an obvious place (along with removing the lights) to save some weight. I do like the stealthy sound levels of the hockey stick. Been quite a few years now, but at one point I would occasionally mount a hockey stick with a dB snorkel on my 250 sx woods bike for super stealth.
  10. rpt50

    The KTM 200 Club

    Well I've just joined the club! I came across a 2004 200 exc with 26 hours on the clock that has been sitting unused for years. The first order of business will be fluid changes, replacing the 10+ year old tires, buying a mount kit for my Scotts stabilizer, and re-jetting for 32:1. Any tips for this particular model? Also, does anybody have a silencer they would part with? The bike has the original hockey stick. If you do PM me. I'm in the Atlanta area and do the SORCS races.
  11. rpt50

    what year model Yamaha yz250 for hardcore enduro

    If both bikes are in equal condition I would take the 200 all day long. But it all depends on your preferences. I have had plenty of 250s, but I prefer small bore bikes and ride 125s pretty much exclusively these days. Having owned KTMs as well as YZs, the PDS suspension and off road specific transmission ratios of the KTM would likely be of significant benefit for your needs. I personally don't like the low first gear of non MX KTMs, but if you are riding difficult terrain at slow speeds that would be real handy. The PDS is simple to maintain, and there is nothing hanging down to get damaged on rocks and such.
  12. rpt50

    what year model Yamaha yz250 for hardcore enduro

    If you are serious about extreme enduro you probably need to look at bikes with electric start. Although I don't do extreme enduro myself, just from course videos and listening to buddies who did the Tennessee Knockout the past couple of years, e-start makes a huge difference in how competitive you will be, although a rekluse clutch will help for sure. As for the year, it does not matter really. Considering how badly the bikes can get trashed, I would be going old, back into the steel frame era. A lot of guys (myself included) prefer the steel bikes over the aluminum for off road riding in general. If you are just doing the amateur races, you might consider a trials bike. They are legal in those classes, and if you are a normal size/strength guy, a lot easier to wrestle around in those conditions.
  13. I never really looked---do those stubby little vent lines everyone seems to have on their gas caps have a check valve, or is it just a simple vent?
  14. rpt50

    Flywheel weight vs retarded timing.

    Assuming that you are trying to control the power, don't forget a throttle cam system. I'm a FWW guy, but I was impressed by the beneficial effects of a throttle cam on my 250sx I was using for woods racing/riding. That bike is sold, but if I buy another MX style 250, the throttle cam will be the second mod (first will be suspension).
  15. rpt50

    Help with head shake

    It sounds most likely that something wrong (warped wheel, loose steering bearings, etc.). It's a long shot, but check your front brake rotor. I bought a YZ once that felt fine on a test drive around the previous owners yard, but had crazy instability when my neighbor and I test drove it at higher speeds on our street. Turned out the front brake rotor was bent, and at high speeds it set up a crazy oscillation that came through the bars. On the other hand, if you like the way the bike handles, and can't find anything wrong, maybe you just need a stabilizer for your set up. I owned a KTM that was stable with stock settings on sag and fork height, but it did not turn as well as I wanted. When I got it to turn with fork height, sag, and wheelbase adjustments, it was unstable. The instant fix was a stabilizer. Yea, it was expensive, but much cheaper than an ER visit. That same stabilizer of mine has been mounted on many bikes since, and gets switched between all the bikes I own now. I feel like stabilizers improve all bikes (although some bike need it more than others).
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