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  1. bob58o

    Murray Hard Drive 420cc 40 Series TC gearing

    7” Driven is 1:1 in high. 8.5” Driven is 1.24:1 in high. With 16” tires, I might go with a 16T instead of 14T. 16” Tires, 16T -> 26T, 10T -> 36T, 1.0 : 1 TAV ratio in high gear… 5.85 : 1 overall ratio in high gear. 3600 RPM 29 mph at 3600 RPM. But it depends on what you want to do and where...
  2. bob58o

    Murray Hard Drive 420cc 40 Series TC gearing

    (26 / 10) x (36 /10) = 2.6 x 3.6 = 9.36 Sprocket Ratio is using 10 -> 26, 10 -> 36 is 9.36 to 1. With a 40 series TAV, lowest gear is 2.43 :1 and highest gear is 1:1. This gives a total reduction of 22.75 : 1 at engagement and 9.36 : 1 when fully shifted out into highest gear. Gearing is...
  3. bob58o

    AliExpress Engine Deals

    These engines are born to be down. They’ve learned all their lessons before now. They’re born to be down. I think they’ll get used to it.
  4. bob58o

    Predator 212. Oil Pump.

    Is it an issue that oil doesn’t get up to the rockers? I’ve seen (and copied) people hog out the oil drain hole (between the pushrods) so the oil doesn’t pool up there. anyway… always thought this DTV Shredder Engine with oil pump was cool. This one supposedly does feed the rod bearing.
  5. bob58o

    Air Filter Suggestions?

    People seem to like the oiled UNI filter don’t they? I’ve also used these types of prefilters. “PreCharger® - The K&N PreCharger is a specially designed filter wrap made to extend the service interval of your K&N Filter when used in very dusty conditions. They are made from durable polyester...
  6. bob58o

    The Nonsensical ramblings of a lunatic mind....

    That’s probably what I was looking at before. What’s the cheap option? Bicycle parts?
  7. bob58o

    How the heck do you tighten these belts?

    I think we said the same thing. Although I think a lot and often my thoughts move faster than my written or spoken words.
  8. bob58o

    The Nonsensical ramblings of a lunatic mind....

    Cool stuff. And this reminded me that I wanted to ask about a specific type of bearing. They used to sell 2-speed automatic “transmissions” for minibikes using 2 clutches and one sprag / one-way / over running sprocket. Are there any cheap solutions for someone who can’t machine to find a...
  9. bob58o

    How the heck do you tighten these belts?

    Looks like a full roll cage, correct? I believe the standard rule is no belts unless a full cage. I think the idea is that’s it’s better to get tossed from a kart when it flips than to get dragged by it. Locked into a seat without a full roll cage is not where anybody wants to be when a karts...
  10. bob58o

    13hp, less than $200

    For me shipping was gunna be about $70. Still not too bad $270 or maybe $290 with tax.? 420cc for $157 + $110 shipping. Sporting Honda red with white gas tank. Fool your friends. lol Basically same price. If you Knwigoe, you Knwigoe. What versions of 390 knock offs are there? I believe...
  11. bob58o

    Bobs 2024 Build Off Build

    Yes, that is correct. it’s turned into a KY Sausage Meat Wrestling Wagon.
  12. bob58o

    Aisin amr 300 on a Japanese 124 cc

    Not sure how the real world results will be but I’d guess no more than half speed is what you want. A 124cc 4 stroke uses 62cc per revolution. A 300cc blower pushes 300cc per revolution. If driven off the CAMSHAFT, the blower pushes 150cc per Crankshaft revolution. 150cc / 62cc =2.419 2.149 x...
  13. bob58o

    Bobs 2024 Build Off Build

    One of the ASM’s says like 90% of shrink is operations, the other 10% is actual theft
  14. bob58o

    Bobs 2024 Build Off Build

    The wording I get is mostly, “remember you’ve got $50 in your back pocket to use”
  15. bob58o

    Aisin amr 300 on a Japanese 124 cc

    Doesn’t turn? Mo powwaa baby! Mo powwaa and mo throttle! Break traction to turn! It’s the karting way. “Always slide forward before you lean into a turn. If your ATV has a solid rear axle or a locked differential rear axle, use these techniques. For slow turns, slide forward and to the...
  16. bob58o

    Bobs 2024 Build Off Build

    BTW, if you want a discount on something at HD… just ask. I think anybody at a register has been given authority to mark down anything by $50 since day 1 without needing a manager approval. I think it’s $50 per day per employee. At least at my store… unless we are way behind on weekly sales...
  17. bob58o

    Bobs 2024 Build Off Build

    GAB them to death. Lol 0.001” of air trapped under the wrap. Dry Air has R-value of 3.6 per inch. 3.6 x 0.001” R Value of House Wrap = 0.0036 in a perfect world. “Wrap this around your face and jump in the frozen lake. See how warm it keeps you.”
  18. bob58o

    Bobs 2024 Build Off Build

    I don’t really like dealing with everybody I have to deal with at the service desk. Like 4 or 5 Assistant Managers from Operations to Customer Service, supervisors from 3 different departments besides my own. What I dislike the most is all the flippin beeping at the desk. Alarms, phones, mobile...
  19. bob58o

    Bobs 2024 Build Off Build

    I hate the phones so much “Is my order ready?” “The notification says it will be delivered tomorrow, is this going to be delivered tomorrow?” “My Credit Card statement hasn’t been getting mailed to me.” “My husband drove into the garage door, do you fix garage doors?” “Online it says NOT...
  20. bob58o

    Bobs 2024 Build Off Build

    Ya, I think it’s like a dollar more per hour. Plus lead, measure, and sales quotas. The only real plus I see is hopefully it would be full time with guaranteed 40 hours per week, compared to the 22 - 37 hrs I’ve been getting. I don’t want to be grouped in with lumber and building supplies...
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