question?

  1. hemigremmy

    Pulsa jet carb question?

    I just rebuilt my pulsa jet carb last night and noticed when I tore it all apart that the pick up tubes on the bottom of the carb looked like they had some kind of sealant around them where they go into the carb, it was VERY miinimal. Should I take a tiny amount of good high temp gasket sealer...
  2. Dragbikemini

    Max Torque Question?

    I installed black garter spring on my Predator Dragbike. I led myself to believe its the same as stall speed on auto trans. Well its not the engine bogged down till about 10mph then took off. I put silver back in and then the green and the green runs best. Why did the engine not rev high and...
  3. hemigremmy

    A quick question?

    I'm new around here, I like minibikes, I don't have very much money at all and we have a baby on the way. I have a good bit of car parts I no longer have a use for, I have put stuff on CList and all I ever seem to get there is somebody that wants to trade me stuff I don't need or offer me 1/3...
  4. hemigremmy

    iPhone question?

    How do people take the screen shots on there iPhone of a conversation and then post them out on the sites like "damn you auto correct" and others. I have a conversation with my ex where she is refusing me time with my daughter and i need to print out the conversation so i have proof when ever we...
  5. M

    Flywheel question?

    Just got my billet flywheel for my clone. I wondering if i need to adjust anything in the timing or can i just bolt it on and go? also does anyone know of a good site that explains advancing the ignition timing?
  6. S

    Gearing question?

    I know this isn’t a minibike but it should help anybody with minibike gearing. I have read tons of gearing threads and played with lots of calculators but all just tell me what numbers I will get. If I end up with the same number in the end – the best combination I used to get it – that’s...
  7. MikeBear

    Feeling stupid right now, Mikuni carb question?

    Ok, you'll probably laugh at me, and I'm pretty sure I know the answer, but I'm going to ask anyway. You know, when I was a kid, I was a real "Macgyver" on small engines, but never worked on 2 cycle motorcycle engines. I finally got spark back on my new 1974 Suzuki RV90, so it's sparking again...
  8. smallbikes88

    Rupp Question? how did this leave the factory?

    Ok i just got this roller from my buddy patrick in toledo. I really like the original green rupps, but they are hard to come by. It wasnt till i got the bike home and was cleaning it up, i noticed they never did any welds on the engine plate? usually the plate is welded all around the...
  9. J

    Just picked up a DB-30, motor swap question?

    Just picked up an DB-30 and I have a spare 6.5 clone that I'm going to install. After I got it home I noticed that the motor mount on the bike had 2 sets of slotted holes. I did some quick measuring on my other brand bikes with 6.5 clones and it appears as if the second (unused set of holes...
  10. alexp

    Crankshaft Question?

    Alright guys ill try to explain this as best i can. I need a clutch for my briggs 5hp but the problem is it has a 1in shaft. The clutch is going to cost me $119 but a clutch for a 3/4in shaft is only $29!!! Is there any way i can take my crank to a machine shop and have them turn it down to...
  11. Mr.GhettoRig

    clutch cover question?

    im not sure this is in the right topic, but i didnt know where else to put it. i guess its somewhat related. anyway. OldMiniBikes member Mac is going to sell me one of these clutch covers for way less than the manufactures i need it for my 1970 rupp scrambler and it looks exactly like the one sold on...
  12. x.fortin

    6.5hp install,question?

    hi,I bought a 6.5 hp engine to put on my baja db30 but i have some question.do i am obligated to have a second plate or i can just put my engine on the first plate. i want to know how you do to fit your motor on. it will be very appreciate if somebody can do me a (schémas),i don't know how...
  13. turftech 1

    flywheel key question?

    I have a 3HP Briggs flatttie. I had just cleaned the carb and cleaned and re-gapped the plug. So I fire it up, vroom vroom... sounds and runs 100% better. (It had sat for a long time, wouldn't run at all). It suddenly makes a nasty sound, one that I am pretty sure is the starter clutch...
  14. trailhopper

    Rupp and Honda pre Z50 question?

    Can you guys help me out with a couple of questions. I have looked thru the brochure postings here and on Minidoodle and cant find my answers. I have a guy that claims he has a very rare Rupp Chopper.....did Rupp ever produce one? He also says he has a Honda pull start mini that was sold in the...
  15. bandit 40

    Briggs crankshft Question?

    Does anyone here know if the older Briggs 3hp crank is the same as the 2hp? :confused:
  16. S

    Tire Question?

    Hello everyone, I was wondering if theese rims: AZ1144-MB - 5" Aluminum Wheel, 3" wide, 5/8" ID Bearing (2 required for Mini-Bike) Would fit theese tires: 8-6594 - 145 X 70 X 6 2-Ply Tubeless Knobby Tire Any help would be appreciated! :grind:
  17. MXMatt

    Painting Question?

    I'm interested to know from some or all of you who have actually taken a stock DB frame and painted it another color? What was your experience like? How did you go about doing it? Did you strip the old paint, use primer, sand it to the metal, use spray paint or a power sprayer, etc.? I am...
  18. Randy

    condenser question? Vintage Wards Engine

    Are all mag type ignition system condensers theoretically the same? I have a antique Wards engine I'm working on and it has no spark. When I pulled the flywheel the condenser was in pieces? So I would assume that was the problem? I sanded the points and gaped them, found a condenser laying...
  19. A

    New member with question?

    High guys, I have been restoring vintage motocross bikes for a while and recently got into vintage minis and I can tell this is going to be fun!! I have already picked up several nice projects, the one I have a question about is the arco e-z rider 1, does anyone know what the original engine...
  20. J

    H50 Carb tuning question?

    Hi folks, first post! I have what seems like a Rupp TT500? with a Tec H50 in it. I pulled the carb apart and cleaned it. the carb on it has the bottom main screw, and the side idle mix adjust. I'd like to get this running RIGHT, as its a bit rich now, and seems to lose power...
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