hey guys so what would you do about a dented pipe on a two-stroke so I've got
this PI it for my CR 250 just a stock pipe that I got with the bike not the
pipe I'll be using on the build so it's got some pretty gnarly dents in it and I
figured why not see what I can do with it so there's a few different options
here as far as fixing the dents I could buy a kit that plugs off the ends of the
pipe here and then you add compressed air and some heat around the dent and
it'll pop out but from what I've read is it's pretty sketchy to do that if you
don't know what you're doing you can blow part of the pipe do some serious
damage and hurt yourself so that's the last thing I want to happen and the next
option is to send the pipe out to a pipe repair company now there's a few mouths
there that are pretty good the one I'll be using is called
Pacific Crest pipe repair out of Oregon now this isn't a sponsored video just be
paying out of my own pocket for pipe repair and I'm excited to see what they
can do with it so while I'm at it the pipe on the 125
has some dents as well so I'm gonna pull that pipe off get these things boxed up
and sent out to Pacific Crest and see what kind of magic they can do on them
they found a box of work for shipping on these pipes by the way what you can do
is head behind your local grocery store such as Fred Meijer or go behind
electronic stores like Best Buy and go dive in their dumpster they shop plenty
of boxes out of work for shipping out of pipe
and that's not how I got all this shit off my face by the way this is all from
chemo treatment pretty painful so I'm gonna see if these pipes will fit in
here
it's about as perfect as it gets right there man I scored it this box so what
I'm gonna do here is put foam couple foam pieces underneath pipe protect it
during shipping
I'm gonna go ship these things out and I'll check back in with you guys in a
few weeks all right guys got the pipes back and it
took a little over a month for them to do which I thought was a little slow but
they did a pretty decent job smoothing out these dents here the 125 pipe still
has a little bit of indentation but I'm pretty happy with how this one turned
out the 250 pipe was in a lot worse shape from the beginning and they did a
pretty good job with knocking out these dents you can still there see there's a
little bit of creasing here a bunch of little dings on this part of the pipe
but for what it was before turned out pretty good but for some reason they
decided to paint the pipes with like spray paint on the 125 pipe there's some
drills in the paint which I'm not too happy about
I had this pipe raw steel from the beginning and I don't really know why
they spray-painted it so now I have to strip this paint off and recolor the
welds what I'm gonna do with these pipes is strip this paint off color the welds
with a torch and then see if I can burn off some of the carbon buildup inside
the pipe as well all right what I'll be using to strip the paint off these pipes
is the stuff called air craft remover made by rust-oleum so
you can pick it up at pretty much any hardware store in the auto store or I'll
have it linked down below as well so you just wipe it on the paint wait about
five minutes it'll dissolve the paint and then you can just scrub all that
paint right off it'll basically just fall right off at that point
and with this remover you definitely want to wear a set of gloves and glasses
it's pretty nasty stuff I've got my gloves on got a pair of glasses got the
aircraft paint remover in a little metal can with a brush
let's get stripping
after a couple minutes of the paint stripper sitting on the paint it'll
start to bubble up and you can basically just wipe it right off you can see just
using this brush the paint just falls right off this stuff works really good
so I've got these leftover worn-out scotch brite pads and I'll be using
these to knock off all the paint on the pipes and then once I'm done with those
and the brush over here I'm gonna toss them in this garbage can and bring that
bag to the local recycling center and they've got a hazardous waste spot for
all this stuff so you definitely want to be responsible with how you get rid of
the paint stripper and the leftover paint so it looks like I've got the
majority the paint scraped off with the Scotch right pads it's all just kind of
smeared around on the pipe now so what I'm gonna do is take a wet rag wipe the
pipe down and figure out which areas and you touch up with the paint remover all
right I've got every last bit of paint stripped off both of these pipes and
next up is gonna be burning all the carbon buildup out of the inside of the
pipe so I've got this oven over here that I use for powder coating and I've
got it cranked up to 500 degrees right now and by putting the pipe in there
it'll heat up all that carbon and I should be able to shake it out of the
pipe or rattle the pipe or hit it with like a soft hammer and loosen it up see
if this pipe will fit in here or not
perfect that should do it and if you don't have an oven in your
shop to use to burn out the carbon actually what I would do is Mount the
pipe and advice that way you're off the table or workbench that you're working
on and heat up the header portion of the pipe with a torch until it's red-hot
then you can use something like a wire brush scraper something to get that
carbon out of the header portion actually the majority of the carbon is
gonna be in this part of the pipe anyways so scrape that out and that
do a pretty good job of getting a lot of the carbon out alright let's take a look
at this 250 pipe inside the oven Oh getting a little smoky you can see some
of that carbon burning off inside of there and with this stuff you definitely
want to have some good airflow in the shop or just do it outside this stuff
can be pretty nasty so I would say good 20 or 30 minutes is good in the oven so
it's been a stall of 30 minutes I'm gonna pull this pipe out and work on it
outside holy the whole lot of steam or a smoke
coming out of that thing see how can I get this thing out of here I've got this
little scotch brite pad once again oh shit alright drag this thing outside and
knock off some this carbon now if you've got a lot of smoke or carbon coming out
of your pipe it's probably a good idea to wear a respirator this carbon buildup
is not good for your lungs at all so I've got a flat blade screwdriver and a
wire brush to scrape the carbon out of the pipe and the hammer a soft hammer
I'm just gonna tap on the pipe and that should help loosen up some of the carbon
as well
so I was able to shake out a lot of carbon out of these pipes for the 125
pipe the majority of it burnt out in the oven but for the 250 pipe there's still
a good amount of carbon left in there I'm gonna show you the difference
between a pipe that has no carbon in it and a pipe that has a lot of carbons
still left in so the 125 pipe is pretty clear listen to the sound as I hit it
with a hammer so it has like a ting to it or like a more kind of distinct sound
and the 250 pipe has a dead sound to it
it has like a dead sounding hit to it and that indicates there's still some
carbon built up inside this pipe so I'm gonna run it through the oven again and
try to burn more that off one thing I didn't really talk about much is why
it's necessary to remove the carbon out of the pipe so as that carbon builds up
inside the pipe it increases in weight reduces the diamond of the pipe and just
reduces the performance of the pipe so pipes are designed a certain way
especially a two-stroke pipe with all these bends and curves and different
diameters and so that carbon build up really affects how the pipe works now
that I've got these pipes all cleaned up and the carbon removed I'm gonna bust
out the bench grinder and cleaning wheel and bring these pipes back to you a rock
color and once again whenever you're doing any sort of cleaning or grinding
you want to use a respirator so this is the respirator I use is a 3m brand I'll
have it linked down below in the description box after everything I've
been through the last few months of my life I'm definitely very mindful of the
chemicals I'm exposed to and I'd hate for any of you guys to have to go
through the same thing
now I've got a more coarse wheel on the bench grinder and I'm gonna see what it
can do with some of these scratches on the pipe here
I was able to knock out some of these scratches but these pipes are pretty
thin so definitely don't want to take up too much material already I've got both
pipes cleaned up with a cleaning wheel the 250 pipe still has a lot of little
dents and dings scrapes on this side but overall looks a lot better than before
so lately I've been using this 8 inch cleaning wheel compared to the 6 inch
wheel or instead of the 6 inch wheel that I was using before and I've noticed
the 8 inch wheel works a little bit better because the larger diameter
equals a higher surface speed and then of course with it being a larger wheel -
it lasts a bit longer so I've got these wheels available over on prime of X calm
I'll have them linked down below as well it is time to do some heat coloring on
these pipes so there really isn't that much purpose to the heat coloring other
than just for looks which I think it looks frickin sweet so I've got two
different torches here with different size tips I'm just gonna play around
with the width of the coloring here so I'm gonna do all the seams and the welds
as well so I'm gonna start with a torch that has a smaller chip on it here and
try to get like thinner band of color I'm gonna start here at the bottom and
then just heat it up until I see a little bit of color coming through and
then move all the way along the seam and to get a little bit tighter color here
I'm gonna hold the torch pretty close to the pipe
just trying to keep a constant speed so that way that coloring is consistent
so this first seam didn't turn out too great a little inconsistent so I think
the propane torch the blue one here doesn't get it quite hot enough to be
consistent whereas the map gas torch is a little bit hotter and I've had better
luck with that in the past so I'm gonna scotch-brite this thing back down to raw
steel and then try the map gas torch instead let's give this another shot
now that's a little better but not quite as clean as I would like but that's
crazy how much the heat coloring adds to the look of a raw pipe I love it
the pipes are all done let's go get them mounted up alright the 125 pipe looks
freakin amazing on there now let's check out the 250 pipe just gonna mock up the
stock pipe on here and compare it back to back with the DPR pipe I have see
which one I like better so do you guys like this pipe better or this one let me
know you think down in the comments section personally I don't think you can
beat the look of this DPR pipe so as I'm sure a lot of you are wondering how do
you keep a raw steel pipe from rusting well what I do is I use maxima MP PL to
spray it on the pipe kind of wipe it around with a towel and I'll do this
after every time I wash the bike and it seems like once you use the MP PL a few
times it kind of soaks in and builds up a layer and prevents it from rusting
down the road and it even kind of adds like a glossy finish to the pipe - and
one more thing to keep in mind with a raw steel pipe is the front portion of
the pipe is gonna get heat colored when you ride it especially if you're riding
hard and like sand or a wide open track so you really honestly don't need to do
that much heat coloring with a torch on the front portion after a few rides
it'll look pretty cool so to cap things off if you have a dented two-stroke pipe
it is we're sending it out but keep in mind there's still gonna be some creases
scrapes and little dings in the pipe but it can look a whole lot better as you
saw with the 250 pipe and the 125 pipe as well alright guys that's going to
wrap up this video hope you all enjoyed it and if you'd like to support the
channel head over to Prime MX com just drop these super comfortable long
sleeves so go pick one up for winter and I've got some really cool things coming
your way with this 250 build so stay tuned for that in the meantime keep a
prime