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  1. whereshaldo

    Rear Shock upgrades?

    I bought these: https://www.ebay.com/itm/10-1-4-260mm-CHROME-SHOCK-ABSORBERS-PAIR-SUSPENSION-SPRING-w-12mm-10mm-EYES/190863294554?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 I eventually went back to the original Honda shocks and just turned them the other way out so that the...
  2. whereshaldo

    Rear Shock upgrades?

    I have a set of generic chrome ebay shocks that are stiffer than the stock. I'm 180 lbs and they were just too stiff for what I wanted but you are welcome to them for the cost of shipping if you want them. Hal
  3. whereshaldo

    Pursuing Maximum Velocity

    As usual you always have very solid advice, in this case more about the experience than the facts and figures. I can tell you with the latest set of changes (going from 15x37 to 15x36 and reducing the main jet from 96 to 94) has made this bike into an absolute dream to ride. The reduction in...
  4. whereshaldo

    Pursuing Maximum Velocity

    I hit 44 today according to the speedo app. The feedback speed sign said 46. So at least its not the bike, its the speedo. Hal
  5. whereshaldo

    Pursuing Maximum Velocity

    I'm trying to push this little bike to maximum potential velocity in a generally stock scenario. As a refresher, I've got an '81 C70 with the Dr. ATV Long Duration Power Cam (XR70 grind I believe) and the 88cc jug and piston. Running stock carb, exhaust and intake. I had been running a...
  6. whereshaldo

    Speedometer nut

    can you wiggle the cable so that the nut falls through the steering column? Once its through, you could put a piece of fishing line through the nut and attach a paperclip or fish hook to the line and pull it back up through the steering column. sometimes you have to go further backwards before...
  7. whereshaldo

    WOT Jetting Issue

    Oh man it's amazing what a simple jetting change, some adjustments to the A/F mix, and resetting the points gap will do. It's a whole new ride. I'd love someone who knows these bikes better than me to take it for a spin, but I think I'm nearing optimal tuning, as least based on how fun it is...
  8. whereshaldo

    WOT Jetting Issue

    Ive got a curious jetting issue that, as I write this, I suspect may be a needle height issue. I've got an 88cc with a slightly hotter cam in it I've been riding all winter with it just fine, but I've started to notice that going from 95% open throttle to 100% WOT, the bike actually loses a...
  9. whereshaldo

    A Little Help with Carb Tuning?

    One thing worth trying is to just disassemble the carb and make sure all the jets are clear. a little carb cleaner sprayed through each orfice and then some compressed air. go both directions. its possible you have a clogged jet or passage that is impeding the transition from idle to...
  10. whereshaldo

    Semi Auto Clutch Question

    Stupid Question on Semi Auto Clutches: Does the clutch wear more when in 1st and sitting at a stop than if you're in neutral? The reason I ask is that the rear wheel definitely spins when it gear even at idle -- not enough to move the bike forward but it does spin with enough force that its...
  11. whereshaldo

    Gearbox question

    Will a 4 speed transmission from a '60s S90 fit into a 6v C70? If so feel free to tell me why I don't want to do this. Hal
  12. whereshaldo

    88cc upgrade

    Ok, I've been tweaking the carb all week, playing with different needle positions and different jets. I finally went and double read the Honda Motorcycle Carbeuretion manual (available in the C70 Yahoo Group Files). With that, I tore back in today and went back to the 98 jet, which is what I...
  13. whereshaldo

    88cc upgrade

    It's a stock Keihin PB32C. Will adjust the clip at lunch today. H
  14. whereshaldo

    88cc upgrade

    So I've rode this around a bit and put in a 102 main jet over the weekend (up from a 98). The 102 is definitely too big, I think I'll dial it back to a 100, it seems a bit slower at WOT than it was with the 98 almost a bit constricted. I'm still not happy with mid throttle however -- from...
  15. whereshaldo

    Engine RPM/Speed/Gear Calculator

    Is there a calculator for these bikes that will tell you how much your RPM will decrease with an increase in gearing? I realize tire size is a factor (C70 vs CT70) as is the gearing of the transmission itself. I've found gear calculators to compare the ratio if I switch from a 14x36 to a...
  16. whereshaldo

    88cc upgrade

    I'm currently running a 14 x 37 which is just slightly longer than the stock but shorter than running the 15 x 36. I'm trying to find that balance between the extra top speed with the longer gears but not too much sacrifice on the torque for the hills i encounter. Once I get the carb sorted...
  17. whereshaldo

    88cc upgrade

    I just rode to work on my newly upgraded C88 and while it has not turned this little machine into a crotch rocket, I have to say it does make a decent improvement in the overall performance of the bike. A hair quicker off the line, definitely pulls stronger, and a noticeable improvement in...
  18. whereshaldo

    Fuel Starvation Issue and the Cold?

    Ok, I've got a follow up question now related to jetting and the needle jet. The bike runs well now but seems a little boggy in mid throttle range. How does the position of the needle clip and needle relate to the overall carb function? Right now I have the clip in the lowest position which...
  19. whereshaldo

    Fuel Starvation Issue and the Cold?

    Today I finally had some free time to monkey around with things. Granted its a balmy 42 right now, but the issues were happening at this temperature too. In round 1 I switched from a CR7 to a CR6 plug. RacerX I know you say it wont help at all but the manual says to do it, and so I do it. I...
  20. whereshaldo

    Fuel Starvation Issue and the Cold?

    Yeah it was 27 today and the bike just would not go with any oomph at all. I could chuff along at half throttle but at speed it just bogs down. I need to get the CR6HSA plug put in to see if that helps. I have some velcro backed neoprene, so I was going to try to make an insulator that I can...
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