Pit Dog answers questions about
Dirt Bikes and Trail |
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| Page 13 |
Mister Pitdog. Hello. What kind of roll chart holder
should I use for the Alligator? I see there are two different sizes, does it matter?
Pitdog: I would think the smaller the
better. My roll chart holder will take up to 2 &1/4 inch wide strips. Most clubs make
the information about 2 inches. I've had only one time that the info was a tight fit. Put
scissors in your tool box with clear tape so you can cut clean strips and tape the ends
together to make a roll. If the club supplies a separate reset list, cut it out and tape
it to your tank so you can read it instantly. High light the resets on your roll chart so
they are easy to find. Use clear tape on the holder lens at the top and bottom just to
keep it shut. And don't try to read it while you are underway, because the Alligator will
get you!
I have a 1996 KTM 360. I have a problem with it. I cannot
start it unless it is in neutral. It seems like the clutch is not letting go when I just
pull the clutch in if it is in gear and I try to kick it over. I changed the transmission
oil and put the recommended type and grade in it. What could be the problem?
Pitdog: The clutch is letting go, just not
enough. I'm sure you have minimized your end play travel and have a decent cable so I'll
go on to the clutch pack itself. Scooters like yours have several drive fiber plates that
grip to the metal driven plates that ride in an oil bath. If the fiber plates become
contaminated with something like coolant, they will swell and drag between the metal
plates. If the clutch had been slipping or the metal plates otherwise got too hot, they
will warp and also cause a drag. Wear notches in the clutch basket also cause all the
plates to hang up, so inspect it. It's almost impossible to measure fiber plates or
inspect for warped metal plates so replacement is the sure test. If the clutch is original
96, then replacement wouldn't hurt anyway. Be sure to replace the springs with new clutch
parts every time.
I ride Enduros and Hare Scrambles and have a problem
every race with my right hand going numb. It seems to loose feeling in it after a couple
of miles into the race. I have to shake it several times to get some of the feeling back.
I am not sure if is lack of circulation or the nerves. Does anyone else have this same
problem and what can I do to keep this from happening.
Pitdog: Guess what? Yep, most of us older
riders have the same problem. It's called Carpal Tunnel Syndrome. As the muscles are being
used in the hand, the Carpal Tunnel which runs down the center and carries the nerves,
gets squeezed and limits the circulation of the nerves. The result is you can't feel. When
you shake your hand out the circulation returns and the feeling comes back. For an extreme
condition, there is an operation called a Carpal Tunnel Release in which the tunnel is cut
open to reduce the pressure build up. I've had it done to my right paw and it has been
100% effective. Now my left one acts up. Because of some limited success, your
insurance company will require a test of your disability to determine if the risk is worth
taking to operate on your nerves. Plan to not use the hand for at least six weeks, so do
the operation in the off season. You may have success with therapy or medication. See your
doctor for professional information. Dr. David White is the best. Tell him hi from the
Pitdog.
If you can answer this one you'll earn yourself a back
scratch. How on earth does one get a legal tag for their scoot? I would like to ride some
dual sport events on a 94 DR350. This is what I've done so far. I have the MSO from when I
bought the bike new. I have one of the few that do not say "OFF ROAD ONLY" on it
any where. When I take this to my local DMV they tell me I cannot get a tag because I am
the original purchaser from the dealer and they have to apply for the title at the
dealership. When I go to the dealer I bought the scoot from they tell me I have a dirt
bike and do not need a tag, (hello)? The Suzuki shop tells me the state tells them it is
IMPOSSIBLE to get a tag for an off road bike. Even though my MSO says nothing about it
being an off road bike. I personally know of an individual with the exact same bike as
mine and he took the MSO and a notarized bill of sale (he purchased it used) and the
infamous affidavit signed by a sheriff officer that the bike meets all DOT requirements
and had no problem getting a tag. The sheriff's department even dispatched a deputy out to
"certify" his bike. This is a problem many of us have and would like the
straight WOOF from the dogs mouth. Any suggestions? If anybody has an answer reply THUMPERDUDE@aol.com
Pitdog: Well that's the biggest question I
think I've ever gotten. I think the individual got the tag because he showed a bill of
sale and the affidavit. The MSO means nothing. I have a friend who got both of his
off-road four strokes street legal so maybe you could ask him, paul_racer77@earthlink.net. Sometimes I think
the DMV wants you to tell them what they want to hear and nothing more. It's like having
your ducks in a row and facing forward. Good luck.
Your DogNess, I recently put a Mikuni TMX34 on a DRS350
(actually it's a 435 now). It's also got a less restrictive pipe. My question
is jetting this thing. I have a good idea on getting the main and needle close to
correct, (WFO plug chop for the main, and adjust needle until midrange pulls well and
doesn't stumble), but I'm clueless when it comes to figuring out the right pilot jet size.
I've read your replies where you say the correct pilot will cause the bike to idle
high the first 30 seconds of startup with the choke on, but does that also apply to
thumpers? Maybe a general "how to" posting on jetting a 4 stroke (and 2
stroke for that matter), from main jet down to air (or fuel) screw would help all of us
wannabe stoichiometric types?
Pitdog: Stoichiometric? Tilt! Well, the idle
high thing is for two strokes because of the oil that settles in the crank area and is
picked up on start up to lean out the charge. Now you will understand that the scenario is
not there on a four stroke. The pilot however, will have an effect on correct choke
operation in that a too rich one will cause easy flooding and a too lean one will result
in little choke effect. A four stroke will have the correct pilot when the low speed screw
(and that's fuel not air), has a correct adjustment, for clean idle, at about 2 turns out.
A plug reading will be the same as a 2 stroke only easier because of no oil. Read some of
my other comments on plug reading. Your comment about needle jetting also applies to the
pilot, for engine performance off idle, so use that too. I can howl all day about jetting
but the real deal is to talk one on one to a pro like Greg at K+P (407-656-9686), for your
best performance. Ask him about the DR350 he built for the Pitdog in 91.
Pitdog. I own a 1983 KE125 Kawasaki. It runs
fine for about 20 to 30 minutes. After that it starts to break up and then it shuts
right off. After I let it sit for a few minutes it will start right back up for only
about 10 min then it shuts off again. What do I do? Help!
Pitdog: On a guess I would say loss of
ignition but it's what, 17 years old. Anytime a motor won't run you need to prove the
basics, spark, fuel, and compression. I'm sure it has points ignition so the condenser
would be the area I would guess. Just check the spark jumping the gap on a spare plug held
next to the block. Engine temperature has the ability to make coils of wire
expand and that's why condensers and ignition coils turn off when old and hot. When the
wire gets brittle it makes a bad connection inside. The same goes for other connections to
the ignition so detail those areas too. Good luck and sign up in Super Vintage.
I live in Flagler County and ride in the Ocala National
Forest. I was wondering if you knew of any other places around my area that have
good riding. I am looking for some new trails that are a little closer than Ocala. Any
information would be greatly appreciated. Thanks Kyle Miller
Pitdog: I know a many of the readers would
howl to live close to such a magnificent riding area such as Ocala. For more, I would
suggest contacting and or joining local clubs such as Big Scrub Trail Riders or River City
Dirt Riders to get the inside line on some private areas. Also I am certain you know about
the Crooms off-road park near Brooksville. In addition, please read up on the action now
under way to plan for the future of Ocala with the US Forest Service and all the user
groups. Your local knowledge could be of some assistance.
Pitdog. I am 38 yrs old, never raced, and am interested
in participating in some FTR events such as the Gatorback Hare Scrambles. Does each event
have its own rules for number plates and numbering?...or can I set my bike up for the Vet
C or Four Stroke Class (for instance) in all events and not have to buy a different set up
for each event? What is the Vet C set up? Thanks.
Pitdog: You can get official rules and
information from Dan George at DBJ@TOTCON.com. If
you have never raced you could also choose the Beginner Class on Saturday. I would
start in Vet C so I could run with riders my age. Also I would stick with one class for
the season and review my interest after seeing how it's going. Welcome.
Reeds? Rad valve? Fiberglass? Carbon
fiber? How often do you replace them? Does it make a difference? What
does the BIG DOG use?
Pitdog: The " Rad Valve" is a
brand of replacement reed valve. I get very good service from my reed valves, probably
because of my maintenance procedures. My 96 still has the factory reeds. We use a light to
check their condition every time the cylinder is off. The difference in most reeds is the
design, such as multiple plates and stiffness. The factories have switched between carbon
fiber and fiberglass so I haven't seen an advantage with material. The design will change
the performance of the motor, like other mods, so they are one of the easiest and most
economical bolt-ons. You probably will not notice much of a change in performance unless
your existing ones are on the way out. If I need to change mine I will go with ones that
are designed to last.
Pit Dog, I'm looking for a a company that makes a
flywheel weight for my 1998 CR250. Could you tell me if you know of anybody and if so
could you give me their phone number, thanks. Matt
Pitdog: A flywheel weight would definitely
be a plus for your scoot at our events. For the guru of aftermarket parts call Dorsey at
Motorcycles of Apopka (407-422-2383) for the latest info.
Hey Pit Dog, I get the impression you're partial to
Japanese bikes;-) Do you know why the dirt bike magazines never seem to review the
American made brand ATK? I've seen a few at FTR events and they look like good
alternatives for those of us who like to 'buy American.' But it is suspicious that
they are never written up in the mags. What's up with that?
Pitdog: ATK's are an alternative for our
events but they focus more on open terrain set up like the XR and DR bikes and you don't
see a lot of them either. The Japanese have developed an uncanny ability to give the world
products that we find more to our liking than say the European market where it all
started. My thinking is that the people at ATK want their individual identity of their
product so they will have a larger market. If I had unlimited funds, my race bikes would
reflect the best components from the world over which would be far from a stock Japanese
unit. As far as what the magazines say, what's the old saying, "believe none of what
you hear and half of what you see?" And those moto heads don't give us much testing
in the trees anyway.
Pit Dog. I have a 1995 Honda CR250. I am having to pull
the clutch lever all the way in to the handle bar to prevent the bike from moving.
Is this normal or should there be a small amount of "play" in the lever? The
adjustment locking nut is already all the way in (it was like that when I bought it).
Do you think the problem is with the clutch basket or the clutch cable? Also, I
have recently moved to the 250C class and will begin racing on Sundays. My bike has a
stock gas tank. Approximately, how many miles per tank will this bike get? I do not
presently need to refuel for the Saturday race but I am unsure of the Sunday races (time
and distance).
Pitdog: There should be up to 1/4 inch of
play in the lever when cool. You are basically moving the lever, cable, and clutch arm
against the pressure plate without moving the plate. Honda uses aluminum clutch plates
because they are light and help give the motor snap. They wear faster than steel, however.
Steel plates will also give you better tire hook up in rough sections. Cables do wear out
but generally don't cause the problem of adjustment. Thin clutch plates cause most
adjustment problems while a worn basket will cause the clutch to drag. Clean and inspect
all the components for wear and replace with new springs every time.
The distance for the C Class at times will run over 30 miles
which might be too far for your stock tank. It's best to top off and measure the fuel
after practice to be sure. Also the course will change a lot from the time you practice
until the time you race so don't cut it close.
So.... I pulled my cylinder head off to change my piston
and there was a lot of condensation (drops of water) on the crank. What's up now? Water
level never went down in the radiator. Speak pooch speak.
Pitdog: Oowww! Oh, you meant in English. I'd
either remove the motor from the frame or flip the bike up on it's bars so I could drain
the crank area into a clean pan and look for contamination. I'll bet the water wicked into
the area when you cleaned your bike before tear-down. Otherwise, it would have to have
gotten past the head gasket. Riders are always commenting about water damage to parts
after clean up and that's why I advise to use a fine mist with little pressure. Of course
if you don't clean your bike then dirt will fall into the engine while you're working on
it and your scoot will look like Jonny Simpkin's. A couple of drops won't hurt much but
you might want to flush the area anyway. Blow drying the frame area under the tank helps
to avoid contamination when the sensitive crank area is exposed. Be sure to use a gasket
coating, like Hightack, when you are working with non perfect surfaces. Also use a thread
agent on the cylinder and head bolts to get an even torque.
Dear Mr. dog,
I am interested in opening a cycle park in the North Florida area. Do any tracks or cycle
parks exist to the public in this area currently? Also, how do tracks and riding areas
deal with liability concerns and the ruthless lawyers out to make a buck in case someone
falls and gets hurt?
Pitdog: This sounds like the way most of us
feel except maybe you have the money, time, and courage. Even though I don't go to the MX
tracks up there, I know there are some because of our event schedule and other series
around the Southeast. Check out this site and Cycle News for more event info. If you're
thinking an off-road practice track I've never heard of a private one open to the public.
Because of the way the courts view who's responsible when an injury occurs on personal
property, some people and their attorneys, have made off the wall claims that never seam
to get resolved. I would think you would want to talk to some track operators and then
make a study of cost and time for more answers to your plan. If you open an off-road
track, you'd definitely be the man.
Pitdog, I race MX and read all about Enduros and Hare
Scrambles. I'm not real sure on how they work. Why can't Quads race Enduros? Please
explain.
Pitdog: Just to make sure you know, there
are a number of Quad classes in FTR Hare Scrambles. In Enduros, there never has been a
class. I suspect it is because Enduros started long before Quads were a glitter in the
manufactures eye and the two wheeled guys set the tradition. In addition, an Enduro trail
may only be an arrow on a tree, making it very difficult for a Quad that's 3 to 4 feet
wide to make the next arrow. As I've said before, it takes more than being fast to do good
in an Enduro. Racing a Quad in an event of non evident trail doesn't sound like much fun.
In a Hare Scramble, the trail is well defined and you get to practice it. That's a huge
difference.
Hey Pit Pooch, I ride a 96 WR 250 and have had great luck
with it. However, lately it has been fowling plugs when 1st started. After it
is warmed up it runs all day without a problem. I raced this bike for three years,
H/S and Enduros, and never fouled a single plug. It only happens at the first start of the
day?? What's up??
Pitdog: Many Yamaha riders have noted this
problem and not just with the WR or a 96. So many things come to mind about the inherent
philosophy of the manufacturer. I believe it to be a combination of factors leading to a
fouled plug at first start up. First thing would be the fresh air filter. Be sure to
squeeze all the excess oil from it when you do the service. If your silencer hasn't been
repacked in a while you are losing back pressure. Spark timing, compression, and the reed
valves could need attention so cover their needs. Finally, too much fuel at small throttle
openings would be a rich condition. I know when my pilot jet is correct because my bike
will idle high for the first 30 seconds of cold start and then the choke becomes too
strong and needs to go off. I would put a fresh plug in, on a warm motor, and do some slow
trail riding to get an idea of the pilot and needle settings. Obviously if the plug is
wet, your problem may be if their correction. Correct low speed jetting will result in the
air screw position to be at about 1.5 turns out. Be careful about being too lean when the
temperature is cool. Read some of my
other answers for more info on jetting.