Two stroke as an adventure bike

Discussion in '2 smokers' started by Shawnspeed, Apr 19, 2017.

  1. miguelR

    miguelR biker

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  2. sonofernest

    sonofernest Adventurer

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    Did an overnight, 100 mile round trip through the NJ Pine Barrens on the IT425. Works fine as long as gas stops are planned as I only have a 65-75 mile range. 20180823_220700.jpg 20180825_114332.jpg long road.jpg
    #82
  3. duggram

    duggram Sunrise Bahia de LA Supporter

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    #83
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  4. chiefrider

    chiefrider Chrome won't get you home

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    Before it was a "thing," my brother, Dave and I were adventure touring.
    In the summer of 1972, he and I, with his Honda CL77 and me with my M&M green Yamaha DS6C, rode the North Dakota Badlands, the South Dakota Black Hills, and into the Colorado Mountains in around Denver, Gunnison, and Monarch Pass.
    We did our share of pavement, but took many interesting-looking gravel tracks in the mountains. The scramblers were so-so dirtbikes, but far better on the highway than the singles. We had stock bash plates, high pipes and cross-braced "motocross" handlebars.
    Dave's four stroke twin got better gas milage, but my Yamaha twin had a bigger tank. Effective range was short with either bike, and we usually sought the reserve tap withing a few miles of each other.
    I loss more power on high passes. Monarch Pass had my Yamaha gasping and running like a 125.
    Two stroke absence of engine braking became an issue coming off Pikes Peak, as the midway brake inspector burned his hand on the hot drum brake.
    Sourcing two-stroke oil didn't seem to be a problem. Most hardware stores carried the proper grade of lube, and most medium to large towns had some sort of motorcycle business.
    The only time I wished I had more power with the 250cc was while riding in Denvers Interstate high-speed rush hour traffic.
    The next year I traded it for a real road burner, an orange & white Suzuki 500T. One one trip I looped through Saskatchewan and Manatoba, and then out west from North Dakota through Montana, Idaho, Wahington, Oregon, California, California and Nevada in the summer of 1974. Never felt I needed more power, and it returned reasonable fuel milage if kept around the speed limits of the day. It held no pretense of being a gravel road runner, but it was light enough and was blessed with decent, smooth low end power so I could pick my way without undue drama along unpaved roads. The 500T was my last 2-stroke touring bike.
    That West Coast journey convinced me to uproot myself from North Dakota a few years later and move to Oregon.
    And here I remained.

    Tom in Salem
    #84
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  5. SandSpider490

    SandSpider490 Adventurer

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    Just found this thread doing a bit of research. I have had this idea in my head for many years, to do a several week long trip on a two stroke. Thinking about a section of the TAT.

    I grew up on two strokes. I have an '83 Maico 490 Sand Spider with the wide ratio 5-speed transmission. I have done lots of trail riding on it over the last decades, and the bike has never let me down. It is comfortable at crawl speed, with tons of low end grunt, and it is pretty fast on top. Feels nearly as fast as my XR650R, and way faster than my '85 CR500. in fact, the Maico in third gear is faster than the CR500 flat out in fifth. So I think the Maico can cruise comfortably.

    I have the bigger desert tank on it, and I just found out about those soft gas bags that you can buy now. I'll have to really try it, but I'm pretty sure I can get a 100 mile range between gas stops.

    I also have an '82 Husqvarna 430XC that has a 6-speed wide-ratio gear box. That bike needs restoration, so I have no experience with it (yet), but it's an option.

    So between the Maico 490 and Husky 430, I should have this covered.

    This is all still in the planning stages, and I realize the whole idea is kinda crazy, but if I'm gonna do it, I need to do it soon.
    #85
  6. Strong Bad

    Strong Bad Former World's Foremost Authority Supporter

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    Is doing the full length of Baja in 1966 on stock 100cc Hodakas an "Adventure"? Keep in mind the road wasn't paved until 1973!

    Hodaka baja.jpg
    #86
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  7. Glenn247

    Glenn247 Long timer Supporter

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    I'm still seriously considering running the TAT on my GPX TSE 250, carrying fuel and two stroke bottles and minimal gear...

    If I go this route, I may actually swap out the tires for a more street friendly set (Shinko 705s perhaps) and ride back roads back East from Oregon...

    Thoughts?
    #87
  8. Glenn247

    Glenn247 Long timer Supporter

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    @SandSpider490 I believe it comes down to range...I believe I can possibly get 150 mile range with my large tank and fuel bottles while riding my GPX TSE 250 as a dual sport along the TAT...

    I plan to do range testing next Summer and Fall for a shot at the TAT by Two Stroke Summer of 2022...
    #88
  9. Pablogordo

    Pablogordo Been here awhile Supporter

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    If you’re consistently getting 125-150 miles and carry a small 2gal on a tail rack behind your camping kit once you get past Oklahoma why not do it 2021?!?? (Pre OK, PLENTY of fuel stops)[/QUOTE]
    #89
  10. Glenn247

    Glenn247 Long timer Supporter

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    [/QUOTE]

    I'm not consistently getting 125-150 miles...I haven't done any range testing yet and won't be able to until next Summer...I'm away from the bike until then...

    I don't plan to carry a 2 gallon container...I plan to use two 1.5 liter fuel bottles and a 1.5 liter fuel friend container, which is 4.5 liters or 1.2 gallons...I also need to carry two stroke oil as well...probably another 1.5 liter bottle...

    I believe I need a 150 mile range to for the TAT; please correct me if I'm wrong...
    #90
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  11. Pablogordo

    Pablogordo Been here awhile Supporter

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    I'm not consistently getting 125-150 miles...I haven't done any range testing yet and won't be able to until next Summer...I'm away from the bike until then...

    I don't plan to carry a 2 gallon container...I plan to use two 1.5 liter fuel bottles and a 1.5 liter fuel friend container, which is 4.5 liters or 1.2 gallons...I also need to carry two stroke oil as well...probably another 1.5 liter bottle...

    I believe I need a 150 mile range to for the TAT; please correct me if I'm wrong...[/QUOTE]

    you’re correct, 150mi range is about the bare minimum, which I would say should be very doable for the TSE250R and a small amount (gallon-ish) of extra fuel.

    Now, I don’t know how handy you are, but even larger KTM/husky tanks have been fitted to the TSE. That combined with knowledgeable jetting (running it lean but not too lean which equates to stronger power AND better economy and willingness to reasses jetting as altitude changes) means maybe not carrying anything more than a single 1.5L bottle.
    #91
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