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Everything posted by jamesm113

  1. jamesm113

    1999 TTR 250 seat same as a 2001 seat?

    Try cross referencing the seat part numbers on partzilla.com
  2. jamesm113

    2008 Yamaha 230 TTR

    Try ebay for a used one. You can check with partzilla.com or you local dealer to see if the 230 shares any parts with other models.
  3. jamesm113

    Honest opinions on the 2015 WR450F, please!

    definitely not OEM.
  4. jamesm113

    Honest opinions on the 2015 WR450F, please!

    +1 on cmsnl, that's where I got mine. Shipping was another 25.5 euros, so just under 100 euros... About $113usd
  5. jamesm113

    Honest opinions on the 2015 WR450F, please!

    The FI tool helps with starting. Mine fires right up both cold and hot with the CO level set to -8. However, it doesn't like starting when warm (ie, cold, start it for 30 seconds then kill it), so I just let it warm up fully before killing it Experiment with different values to see what's best for you.
  6. jamesm113

    2012 WR450 Headlight not working

    So you are not getting 12VDC at the H4 harness after the bike starts? If not, check the headlight relay, between the battery and the fuel tank. You should get 12VDC there as well.
  7. jamesm113

    The WR450F Clutch Hub "Swiss Cheese" Mod Thread

    I'm surprised this post never got any responses. I absolutely love this mod! 👍👍 Clutch feel is 100x better, I can modulate the clutch easily over technical trails. Just an awesome, buttery-smooth clutch. When I got a 2012 WR450F last year to replace my 2007, I realized how much I took it for granted and quickly performed this mod to my 2012. My buddy has an old 03 YZ450f that was always a pain to start. After performing this mod (and some valve reshimming), it starts in gear easily.
  8. Time Left: 20 days and 9 hours

    • FOR SALE
    • Used - Like New

    * OEM tank - $140 * OEM ECU - $50 * OEM Skid plate - $40 * OEM fork springs - $70 All parts is in good shape. Shipping is extra


    , California

  9. Yeah, we have some nasty clay out here in Southern California. Me, being an idiot, unloaded my bike, and immediately climbed up a hill that was covered in wet clay, and I couldn't get down. In the process of trying to get down, I f'd up my bike so bad that it never delivered any power to wheel, even when in gear. If I let the clutch out, the bike did nothing... Tonight, I pulled the clutch, and immediately was greeted by a nasty burnt smell. Most of the middle plates were below the wear limit. Some of the outer plates were close to the min spec. I do a fair amount of technical riding, so I'm ordering an OEM clutch kit, which has discs, friction plates, springs. (Rocky Mountain FTW, $110!) Anything else I should be doing? I also plan on doing an oil change.
  10. jamesm113

    Roasted the clutch in 5 minutes...

    Yup, will change the oil filter too. As requested:
  11. jamesm113

    headlight bulb switch H6M to H4

    Pre FI bikes have AC output for the headlight, so, yes you would need a rectifier. I think you could get the Cyclops WR450F kit to work with some modding on your bike. Probably $80 total. Would need to perform this mod, and solder in an H4 harness (like $4 at the auto store)
  12. jamesm113

    08 wr450 valve replacement

    You'd want a machine shop to do a valve job. Ask around and see who does dirt bike heads (or more specifically, the yamaha 5 valve heads) Drop the head off with them, and ask them to inspect the head/valves and they will tell you what it needs and how much they charge. Definitely a good idea to do valve stem seals if they are replacing the valves. They can grind the seats down, but not Ti valves. But, what makes you think they need replacing? Have the valve clearances been off?
  13. jamesm113

    Carb Leaking From Overflow Hose

    I've had some luck with the visu line in-line filters. Helps keep the carbs a little cleaner. My dealer has them for like $3-4 bucks. https://www.amazon.com/Visu-Filter-Universal-In-Line-Fuel-Filter/dp/B00J4ZAOIA
  14. jamesm113

    New to me ‘04 WR450FS

    Look into the 2008 CRF450R pumper mod- https://www.crfsonly.com/howto/keihin-fcr-carb/honda-crf-fcr-carb-update-how-to-install/how-to-install-honda-accelerator-pump-update-crf450r.php That, a 45leak jet, and an upgraded accelerator pump spring (https://www.amazon.com/gp/product/B011EUGY18/ref=oh_aui_search_asin_title?ie=UTF8&psc=1) cured the bog on my 07
  15. jamesm113

    05 TTR230 hard starting, recent development

    It was the starter circuit that was clogged. While I'm an expert at cleaning the Keihin FCR-MX carbs, I never paid much attention while cleaning these TK carbs. I completely overlooked the starter circuit. The starter circuit has its own fuel supply in the float bowl, delivered to the choke plunger by its own dedicated pipe.
  16. Until the past month, my 2005 TTR230 has been easy to start. Last month, before a desert trip, I noticed it wasn't starting, so I cleaned the carb, then put it back together, and it started fine. I then took it to said desert trip, and it wouldn't start. Even bump starting it, it wouldn't go. I eventually had a friend tow, but it would fire, then die immediately. Eventually, I started holding the throttle open and it kept running. After it was warmed up, it idled fine, and it started fine. Next day, same problem. Took an excessive amount of effort to get it started. I did notice the spark was a little weak, so I changed the plug when I got home from the trip, but it was still kinda weak. Today, I switch the battery out, the spark is much stronger, but it's still not starting cold. ARGHHH Mods: Inline fuel filter between tank and carb Airbox cut #130 main jet #38 pilot jet Rewound stator
  17. jamesm113

    Good Skid Plates for TTR-230s?

    Ricohet Off-Road makes one too: https://ricochetoffroad.com/products/yamaha-tt-r230-aluminum-skid-plate
  18. jamesm113

    05 TTR230 hard starting, recent development

    Might as well ask now. How do you all pull the carb? I've been pulling the airbox to carb intake, but it's a pain to put back on. Is there an easier way?
  19. jamesm113

    05 TTR230 hard starting, recent development

    Well, the valves were a little loose, but that didn't help. Even with newly adjusted valves, the bike wouldn't start. I suspect the choke might be clogged as outlined in this thread:
  20. I'm helping a friend with an 02 WR250F that has a whole bunch of problems, but the biggest one has is it's been a real pain to start. It's currently only starting with the choke on. Once started and the choke is removed, it will idle just fine. Doesn't matter if it's hot or cold. And even with the choke, it takes lots of kicks to get it going. So, I measured the valves yesterday. The exhaust valves were around .20mm, (spec's .17mm to .23mm). But the intake valves were all loose. All were above .15mm, one was even above .18mm (spec is .10mm to .15mm). I always thought as valves wore, they got tighter as the valve seat and valve face wear. Is it normal for valves to get looser too? PS. In case someone asks, jetting is 178 main, 45 pilot, 72 starter, 2 turns on the pilot screw, OBELQ-4 needle, 60 leak jet, 200 main air, 75 pilot jet, with an O-ring on the AP linkage. We've had a decent amount of success with this configuration. Temps typically 50-80F, altitude is 0-3500 feet.
  21. jamesm113

    Hard starting 02 WR250f, loose intake valves

    Well, the main jet was a #125. I think it got mixed up with a CRF230 jet when trying to jet for altitude (should have been a #175) 🤦‍♂️. Explains the bog it's been experiencing. Didn't have time to clean the carb, but I have a feeling it's hard starting problems are going to be solved once that's done.
  22. jamesm113

    Hard starting 02 WR250f, loose intake valves

    We will be an hour or two into our ride, and he'll kill the engine for a few minutes, and can't start it back up without the choke. It'll be ~60F out, so it's not like the engine is suddenly too cold to idle properly. For sure, that's my plan. He's had the bike a few years, and we've never checked the valves, so I figured it was time. I've fixed the carb plenty of times, and that's next on my list of things to mess with after I ensured the valves were in spec. Yup - I got the bikemaster feeler gauges. They're not perfect, as they jump from .10mm to .13mm to .15mm to .18mm to .20mm to .23mm to .25mm, but they do have both metric and imperial markings.
  23. jamesm113

    TTR 50 run w/o oil, won't start

    For future reference, the Yamaha part number is the same at any dealer. So you could have gotten it on Babbits, ThumperTalk, RockyMountainATVMC, or Partzilla, and plugged it into any of the sites. Keep us updated!
  24. jamesm113

    TTR 50 run w/o oil, won't start

    +1 on checking the cams, & journals. Those are probably toast if your piston looks like that. Also - pick up some assembly lube for when you put everything back together.
  25. jamesm113

    TTR 50 run w/o oil, won't start

    New cylinder is $120 on partzilla. Try bringing into a machine shop or two in your area to see if they think they can repair it for less. If you are lucky, they can run a hone through it for pretty cheap and still have it back to service. Replating costs significantly more, but you can try calling Millenium Tech or Power Seal USA. But quotes I got were well north of $120.