jeffrow68

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About jeffrow68

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  1. Sent you a pm
  2. I am thinking of going one step bigger with my current 230 project and would like to source larger valves, a cylinder sleeve, and a 69mm piston. Regarding the valves, does the intake valve only need to be enlarged? I am assuming that I would be using a valve from another Honda that is larger than the 230 valve? What sizes would I be looking for? There are several listings for cylinder sleeves on eBay, I just need to verify they can be bored to 69mm. Then find an available piston with an extra set of rings. TThe other question I have is which carb would be good for the engine combo? I am using the PD03A pumper now and really like it but not opposed to trying the PWK if will feed this combo.
  3. BTR, thanks for the updates. I have copied most of your mods to my bike and I am very happy with the performance and durability. I don’t ride as much as you, but I do ride a lot and I push the little girls bike very hard through some extreme conditions. I very much identify with the comments about switching over to the 230 from a full on race bike. It took me a long time to swallow my pride and finally embrace the 230. I couldn’t get past the idea of having brand new, top of the line, super fancy KTM’s, Beta’s, Yamaha’s, etc but I wasn’t any faster or safer on these versus my little 230. I can ride the 230 for longer, faster, more control and safer, and go just about anywhere. I wish I had made this transition a long time ago.
  4. Thanks very much for the verification. No estart, 5 speed, broken cases, etc all good reasons not to use the 150F base. So far I have a nice complete 230F engine just waiting to be modified. I have a nice set of XR400 forks and a nice set of XR600 triples (does any of this sound familiar). I am going to experiment with a few swingarms for possibly a PDS setup, but not sure yet. Stay tuned, I am sure to be leaning on you guys for advice
  5. I was gifted a basket case 05 150F that I was planning to use as a base for another Enduro bike build. After asking around, I decided it was not the best idea to use the 150F engine due to kick start gear failure issues. I have since obtained a 230 engine and I am moving forward with this project. I wanted to verify that 230F engine will fit in the 05 150F frame using the 230F mounting brackets. I plan on replacing all the suspension components and wheels and brakes, so I will only use the 150 frame, tank, plastics.
  6. I did a fair amount of testing with carbs on my modded 230 and ultimately ended up with a PD03A pumper. I quickly outgrew the OEM carb then switched to an XR250R carb. It had better top end but didn’t seem to perform as well on the bottom with a noticeable loss of grunt. I then adapted a 28mm OKO PWK clone and worked out the bugs to get it jetted correctly. This one worked very well compared to the previous two carbs. I then purchased a cheap Chinese PD03A clone and worked through all the quality issues to get this one working very well, even better than the previous PWK. I was very concerned with quality, so I purchased a used PD03A pumper and used the clone for spare parts and gaskets. With all that being said, I think the PD03A has been the best performing carb from this group and I am very happy with it.
  7. Chad, for me the twisted engineering bars are very high on my list of recommended upgrades, if not the top. I was struggling with arm pump and numb hands from CT when riding 2T bikes which was aggravated by the vibration. I initially used the Flexx bars but they were very heavy and only flexed in one plane. The twisted bars are very light and the flex in all directions. I have had the same pair for several years and I keep switching them over when I get a new bike. You don’t notice the flex when riding, but man they work great for absorbing sharp hits and hard landings and even with vibration reduction. I am so used to these bars that I don’t like riding bikes without them, it is really a huge difference. They are also very durable as I have tested this repeatedly. The only downside is the price, pretty darn expensive but a mandatory upgrade for me to keep me in the saddle and somewhat safer. I have the 3X flex version, just discovered they now have a 4X version which I may purchase for my DR650. Please note that I did not get paid for this review, but if this somehow gets back to Twisted Engineering I will accept sponsorship to help advance my racing career!
  8. Chris, I love the tubliss setup and have been using it on all of my bikes for a while. I am using a dual compound front tire at 6psi as recommended by BTR and I love it. Vulcanduro ve35 on rear at 8psi. No issues at all, but only positives such as much better control and noticeably softer ride. The power delivery of the 230 coupled with enhanced traction make me feel like I can do anything on this bike!
  9. Daled, what year CR and what size bike (125,250) did you use the triples? Also, are the stem bearings correct size and only need shimming to fit? I agree there are lots of CR parts available on eBay. I am assuming with the different spacing dimensions between the two triples, you would have to use wheel spacers for the specific clamps? (CR triple clamps with CR wheel spacers) Again, I like the availability of CR parts, just not sure which years/models are useable. I am collecting parts for a 150F conversion to 18/21 wheels and modded 230 motor. I plan to replace the entire front end with 400 forks and whatever triples, wheel, brakes, etc to make it happen. Still undecided about the rear, contemplating the PDS setup similar to what woodsrider did but maybe flipping the 230 swingarm and trying to find a compatible pds shock. I enjoy working on these bike, but I need a steady steed in the stable while I experiment on this other bike.
  10. Thanks for the responses. It definitely feels weird racing on this vintage era bike, but I am riding faster and with more endurance than I ever have on a long list of modern race bikes. It is hard to explain this transformation, even my riding friends are at a loss as to explain how I am kicking their asses on a trail bike. Regarding overheating issues at the mud race, I don’t think I had any. I use always fresh Motul synthetic oil and change it frequently. My oil appeared used but not burnt or excessively fouled after the race. I was very hard on the clutch, and especially harder since I only had 2nd gear for the latter part of the race. I will probably change the clutch over the summer just to be safe. The only real issue was the drum brake, it gave up pretty quickly. Luckily the little girls bike doesn’t go fast enough to need brakes..HA. As far as upgrades to my 230, I have followed this forum religiously and all the awesome fanatics that share their knowledge and experiences to convert my little girls bike in a very reliable and competitive Enduro bike. I am a trial and error/test and tune type guy and always searching for mods and improvements ideas to make my 230 great for me and where I ride. Here is a short list of mods to my 230: Suspension/chassis Fox Podium RC2 shock, CRF150R USD forks, twisted engineering 3X bars, tall and soft gripper seat, IRC rear and Washougal DC front tires both with Tubliss and low air pressure, Scott’s damper, oversized foot pegs relocated for better ergos, light side stand, aluminum shifter (currently broker). Engine 67mm BBR Piston, 4mm stroked crank, ST1.0 cam, very thin head/base gaskets, Head porting, PD03A pumper Carb, pro circuit full exhaust, 150F flywheel, delete judder spring, procom ignition, lithium battery.
  11. Philjay, I have the same unit on my 230. I researched the procedure for setting tension and this is what I did: use an Allen wrench and tighten the tension by hand, then rotate the engine by hand and continue to hand tighten the tensioner. It worked perfectly. I will try to find a link using this method and post it if I can.
  12. Thanks for the update on the seat bolt part. I had been using a lynch pin in place of the seat bolt without issue, that is until the massive amount of mud that I endured disabled the Lynch pin. My ass was stuck/glued to the seat from the mud, so every time I stood up the seat came with me and then fell off. I will update to this system, thanks.
  13. Yes, I have probably lost my mind but I am campaigning my CRF230F in the National Enduro Series this year. Man, do I get some funny looks when I roll up to the line on my 70’s technology race machine! But, so far I am actually doing quite well. The first race was in South Carolina and the biggest race of the series with over 750 bikes. I got pretty nerved out at this big event, and I was on row 1 so that added to my stress. I rode really tight the first few test sections and finally found my groove on the last test and ended up finishing 2nd in class (50C). The 2nd race was scheduled in my home state (Louisiana) but unfortunately got canceled, so I really got screwed on that deal since I am very familiar with the course and it is 2 hours from my house. The 3rd race was this weekend in Indiana. I arrived with a good attitude and confidence even though it was a MUD fest This was the most difficult test I have ever endured on a dirt bike. I had a great 1st test section, (150 out of 500), but I got stuck several times in the 2nd test section and quickly got exhausted, completely exhausted! There was so much carnage and overheating bikes and stuck bikes and exhausted riders, it was a fight for survival. I ended up finishing 3rd in class. I broke my shifter and my seat bolt came out and the seat kept falling off every time I stood up, and I didn’t put the film in my new roll-off goggles that I bought the day before the race so I had no goggles! So, despite all the funny looks my little 230 is exceeding expectations. Next race is Virginia in a few weeks, wish me luck.
  14. Just from the picture, I really like the skid plate, nice engine coverage. I also like the red anodized COLOR of the forks, does it really matter if they work? I am also a sucker for the black rims, I hear the black color makes rims lighter and stronger.
  15. This footage was recorded December 2017 on our family property in SW Mississippi. I have been riding these trails since I was but a small child. Several parts of this trail are sections of a natural terrain track that I practiced on when I raced MX, 40 plus years ago. We had a warm winter, notice All the greenery. This is my own little slice of heaven that I often retreat to ride my dirt bike and forget everything else.