Friction drive mods

Discussion in 'General Questions' started by wilbur, May 30, 2009.

  1. wilbur

    wilbur Member

    Hi guys! .I have a friction drive setup with a 2h.p. Tecumseh two stroke that will run forever .I was just wondering if anyone has done any mods on this type of motor .I tried to put a Boost bottle on today but When I tried to tap the plastic spacer (per the instructions ) with out a tap ,I ruined it ,so I have a new one on the way but have not done any other mods to the engine.I wonder if anyone ever tried to hook up a chain some how on one of these.Thanks!.
     

  2. 5-7HEAVEN

    5-7HEAVEN Guest

    Front or rear drive? DIY or Staton, BMP, Dimension Edge or?

    Need more input,sir.:detective:
     
  3. wilbur

    wilbur Member

    Sorry .I am running a Viper rear friction drive that I got from Island hopper.The only thing I dont like about it s I would like more speed of course and the friction wheel is smooth aluminum and I have to run on completely dry roads or it wont run.They do not make any other type of friction roller for this set up.I think a knurled one might work pretty good for me too.
     
  4. kerf

    kerf Guest

    Hello Wilbur,
    I've been through two 2 h.p. Tecumseh engines. While they do work, if you ever try a TLE 43, you'll never look back. Not trying to rain on your parade but mods on that engine will be difficult, they aren't designed to turn the RPM to get 35 mph and I've found the torque to be less than stellar. Just a fact.
     
  5. wilbur

    wilbur Member

    Thanks for the tip.I guess the thing with that engine is reliability.When it was new it took a dozen pulls to get running .Now it is broken in and starts on one to two pulss and will idle all day.Can you give me more info on the TLE engine ?.Thanks.
     
  6. kerf

    kerf Guest

    The difference in quality, performance, and noise between the Mitsubishi, Robin-Subaru and the Honda when compared to the Tecumseh is striking. The Tecumseh uses a 54mm clutch with iron friction surfaces, it slips and is very noisy whereas the aforementioned engines use 78mm clutches with friction material surfaces. They lock up better and are much smoother and quieter. The engine was designed for such applications as micro pumps, tillers and augers that operate a relative low RPM, it was not designed for sustained 7-8k operation that a bicycle on the street will require. Don't get we wrong, Tecumseh got me and the wife into motorized bicycle's, mainly due to cost. I now wish I has listened to David Staton and spent a little more up front and had more in my pocket now.
     
  7. eastwoodo4

    eastwoodo4 Member

    are u saying that island hoppers spindles are not knurled?
     
  8. 5-7HEAVEN

    5-7HEAVEN Guest

    JMO, TLE43 Mitsubishi engines are the bomb!

    On my 40-mile run yesterday I bypassed all sidewalks and bikepaths and rode down the middle of the highway (35mph speed limits). RPM range was 9400-10000.

    Top speed on the flats is now 41.5mph.:devilish:

    I run with cars, trucks and motorcycles. No one honks, yells, tailgates or shows their finger. JMO, it's safer than the shoulder of the road.:detective:

    These engines are runnig lean and WAYYY over their redlines. Right now I'm fabbing aluminum adaptors to install high-performance carbs. Also trying to fab or find friction rollers larger than 1.5" diameter.

    If I'm successful, my TLE43's will no longer run lean, and will enjoy a better life expectancy.:detective:
     
  9. wilbur

    wilbur Member

    The one I have ,has a smooth spindle on it .I can go a long way on one tire due to the low heat I get from the smooth roller but I have to apply a lot of pressure or it slips.I did E mail them today to see if they offer anything differant for that set up.The spindle I have on now is about an 1"3/8 and lugs me around at about 20to 25m.p.h. and I weight about 225 with my backpack and gear.The clutch is not very smooth and I do pedal before I hit the gas.
     
  10. wilbur

    wilbur Member

    Heaven ! your motor is screamin!!!!.I think mine tops out at about 8000.I do have a harbor freight store near me that has a power auger that runs for 189.00 I have heard that is a pretty good motor .It is 52cc and runs about 2H.P. or a little more.Is that a good price .If you go to Harborfreight.com and put in 95346 as the part number it has it listed as 229.00 but thats not the sale price.
     
  11. 5-7HEAVEN

    5-7HEAVEN Guest

    Yep, screaming!:devilish:

    I have a spare if one fails.

    Must finish adaptors. Too proud to have machinist put the screws to me.:whistling:

    Maybe I'll inquire tomorrow how much they'll charge me.

    wilbur, maybe a knurled roller from Staton or BMP will fit.
     
  12. wilbur

    wilbur Member

    How hard would it be to put one of those motors as a replacement to my Tecumseh ?.
     
  13. Porkchop

    Porkchop Member

    Wilbur, I'm running the Harbor Freight engine you spoke of on a friction kit from bikmotorparts.com. The engine never had fuel in it until I mounted it on my bike about 4 or 5 weeks ago. So far I'm happy with it. I weigh in at a little over 200 and if I have my computer calibrated, Im getting a consistant 27 mph out of it with a 1.25" roller on a 26" wheel, on a flat. And I can also get going and up to speed from a stand still with no peddles and the engne doesn't seem to be straining it's guts out. I have a 1" roller but have not tried it yet. It does require peddle assist on steep inclines though, but still beats the heck out of 100% peddle power. Also, do you know about the 20% off coupons at Harbor freight ? If not, let me know and I'll send you the site address. It's good for 20% off any single purchase weather it's on sale or regular price. I paid about $165.00 for my auger almost 2 years ago !
     
  14. Porkchop

    Porkchop Member

    Wilbur, I'm not familiar with the drive kit you're using, but I spent less than an hour building my complete kit. I had the engine removed from the auger before I got the kit though. That job in it's self took probably close to an hour. If you're pretty well mechanicaly inclined and have everything ready to go, it shouldn't take more than 45 minutes to an hour and a half. I could probably do another like mine in about 30 minutes now since I'm familiar with it. It's a very simle easy task.
     
  15. wilbur

    wilbur Member

    Wow!!.Thats pretty fast.I would like the site address, as I shop there alot.They do have the Auger on sale for 189.00 right now.
     
  16. Porkchop

    Porkchop Member

    Wilbur, this might be yor lucky day. I was at Harbor freight within the past hour. They have a gasoline powered water pump for $130.00. I had one of my buddies that works there to open the box and let me look at it. I'm pretty sure it's the very same motor as the one on the auger, just a different color. Blue instead of red. The specs say it's 52cc with 1.5 HP. Who knows. I read somewhere that he auger engine is actually 52cc and 2.2 HP. Again, who knows ! Anyway, it would be quite a bit cheaper for the pump rather than the auger. And as someone told me, you might be able to sell the pump assembly on eBay or where ever. There are a few places that sell the same engine as the ones from Harbor Freight. The cheapest I've seen them is like $120.00 and they're all sold out of them. Get my drift ? If you want one, Harbor Freight has them. I'll send you the site address for the 20% coupons. I checked them earlier but they did not have one currently. You have to check often. One may show up later today, tomorrow, next week, who knows ! Hope this helps. Oh, here's the link to the pump.
    http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=66585
     
  17. Porkchop

    Porkchop Member

    Last edited: Jun 2, 2009
  18. Happy Valley

    Happy Valley Active Member

    The original manufacturer did just that.
    BeachCruiserTitan1000.jpg

    BTW, if you are going to upgrade engines, go with what Kerf suggested.
     
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