Is it safe to ride down a dirt road with a Chinese HT engine?

Discussion in '2-Stroke Engines' started by rjriggs, Sep 1, 2015.

  1. rjriggs

    rjriggs Member

    Now that I've looked at the kit, I realize there isn't really much of an air filter in the carb, and nothing on the air intakes. Is this thing safe to ride down a dirt road? And what can I do to beef up the air filtering to make it safe for a dirt road?

  2. butre

    butre Well-Known Member

    I do it all the time, don't worry about it
  3. rjriggs

    rjriggs Member

    Can I put some kind of screen over the air intake to help keep the dust out?
  4. butre

    butre Well-Known Member

    if you like. pantyhose works well as a prefilter
  5. crassius

    crassius Well-Known Member

    if you don't have a rear fender that keeps road dust away, you can zip-tie a small plastic shield behind the carb to help some - some folks buy a better air filter when there is room to fit one on
  6. Fabian

    Fabian Well-Known Member

    These engines take a lot of punishment if run at 25:1 oil/fuel ratio and correct carburettor jetting. I have ridden down many dirt roads without any problems.
  7. HeadSmess

    HeadSmess Well-Known Member

    nooooo! not the dirt road!

    these things will rapidly expire if used on anything other than yellow brick roads!

    it says it explicitly in the manual, dont you ever read the fine print?

    of course, if one happens to come across a patch of gravel whilst commuting upon the yellow brick road, one must instantly dismount, remove engine and place in protective film, continuing until well padded then place in a large steel box, welding shut to be water tight, then send via courier to the other side of the gravelly patch otherwise all warranties, express or implied, are completely, utterly negated and rendered void in all definitions of the law.

    its a risk some feel worth taking, but not i! oh no sir! definitely not!

    my engine is stored in a convenient bomb bunker far away from prying eyes and pernicious dirt...

    arrrrgh! dirt!
  8. HeadSmess

    HeadSmess Well-Known Member

    and no.

    taking the question another is not safe.

    not when you come over a crest at 80 on a 1 in 6 gradient followed by a 90 degree bend and the twenty metres you have to stop in has three inches of gravel covering it from the recent rains...

    i needed new underwear after that one :eek:
  9. butre

    butre Well-Known Member

    at a local trail I run there's a sharp right over a blind crest at the end of a big straight that always used to catch me off guard. if it's been raining sand will wash into that part of the trail. so many people wipe out there that someone eventually put up a sign warning riders about it

    I've definitely needed new underwear a couple times from that one
  10. Frankfort MB's

    Frankfort MB's Well-Known Member

    Hate to rekindle an old thread but this is my exact question lol

    I have an old looking motorbike that I'm putting a motor on and i wanted to take air filter off since it looks cool without it:D

    Probably shouldn't but dirt should just go in then get spit out exhaust?
  11. butre

    butre Well-Known Member

    not before essentially sandblasting the bearings, ports, and cylinders. worse yet, if a rock happens to get flung into there you're SOL
  12. Frankfort MB's

    Frankfort MB's Well-Known Member

    Kinda figured that, guess I'll pull the old pantyhose out to cover the carb
  13. Hello Moto!

    Hello Moto! Active Member

    Hey, I live on a dirt road o_O
  14. HeadSmess

    HeadSmess Well-Known Member

    a 4stroke can live with a small amount of gunge, heck, virtually no aeroplanes use airfilters. of course, 10,000 feet is pretty clean ;)

    score the bore, pit the valve seats, erode the plug...not that bad. all fairly easy to fix every fifty hours or so.

    a twostroke...well... simply, no. not if you want it to run still when you get home. oil, fine dust and internal engine parts do not mix terribly well.

    dirts roads, in all other cases...ARE FUN!