Hi folks! First post here!
A little background: I had an R when I was 18, back in 1995-1996. Loved it, but was sold when I was away at basic training. Now, 20 years later, I came into another R, by chance, through a trade with a buddy. It had been completely gone through about 8 years ago, frame powder coated, cases split powder coated, and complete rebuild, new plastics and A arms. He rode it a few years, and after an airbox issue, he parked it for 3 years, and then I got it about a month and a half ago.
I went through it, cleaning, lubing, adjusting, and put a near new 69mm top end on it, and a new Keihin PWK 38 airstiker quad vent carb, and went through all the wiring and put in a good OEM coil.
I have it running pretty well the past couple days finally. Carlos from BDT had set up the carb with a # 165 MJ (included a 162 also) and a # 52 pilot (included a 50 also). The DGH was set in the middle notch. It was way rich at idle with the #52, and would only idle when cold, even with the airscrew like 4 turns out. I went down to a #45 I had on hand, and at 2 turns out on the airscrew, it idles pretty well, but is still a bit rich, so I have a #42 coming that should put it in range.
The quick spin I did the other day, the 165 MJ seemed a big boggy (but I didn't get to ride it much at all), so I put a 160 MJ in with the 45 PJ. I rode it at speed, for the first time today. It seems to run very strong at full throttle and maybe a bit soft through mid range throttle. One thing I did notice, was after making a full throttle run through all gears, then slowing, downshifting, and turning around, when getting back on the gas, it seemed like it was bogging down, like it either was loading up, or the ignition was going flat. I think it was fuel related bogging, since it did clear up after a few seconds on the gas, and since it had been running strong at full throttle. When parking it, the cylinder wasn't overly hot, but pretty warm to the touch, and warmer than I would have guessed, since it was 34 degrees out, and I had putted it slowly, for about an eighth mile, to bring it back to the garage.
So, I guess my plan is to maybe bump the MJ back up a notch to a 162 (the heat concerns me a little), and lower the needle, and do some more testing. I know I need to do a plug chop, but I want to get it close by seat of the pants before doing that.
Any thoughts on the bogging or power loss (it almost felt like I had left the gas valve off, and it was cutting out as I hit the gas) after slowing and downshifting from the open throttle run through the gears? Needle too rich cause that? I also have an inline fuel filter.... could that be restricting fuel fast enough that the bowl was to empty, until recovering?Thanks for reading my thread, and I look forward to participating here. By patient with me.....I have been on 4 strokes for YEARS, and this two stroke thing and jetting is taking a while to come back to me.
