Pit Dog answers questions about
Dirt Bikes and Trail |
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| Page 15 |
Dear Mr. Dog,
Please help with my scooter problems, oh wise one. I have a 1989 Kawie KDX200. My
bike runs pretty good but it smokes a lot. This blue fog coming from my tailpipe is very
annoying. My dad says that I am burning oil and need a new set of rings and maybe even a
bore job. I don't think this is right because I keep checking my oil level and it is
always full up to the top. If I was burning that much oil I would surely run low, don't
you agree. I have tried to use good oil like Castrol (good enough for John Force....good
enough for me). My riding buddy Brandon says that I am putting too much oil in my gas
tank, but I think maybe I should be using a lighter weight like 5W30. Also how come
Brandon's CR 125 can roost my 200? Shouldn't my 200 kick ass on any 125? Is it slow
because of the smoke? Also I am thinking of asking for riding gear for Christmas, could
you tell me which brand has the best protection in case I crash (I want to look cool also)
I ride behind the 7-11 near my house and some of the kids always say "Hey, do you
race that thing?" I want to tell them "Yes," and I WIN because the
Pit Dog is my bud.
Thanks, Roached in Rockledge
Pit Dog: The Pitdog hates two stroke smoke
too. Especially at those race starts. The Pitdog has always run 50:1 fuel mix in his
scooter because good mix oils don't need to be at 32:1. This will make jetting rich on gas
so the jetting may have to be adjusted. I covered jetting in some of my other columns. By
the way, are you putting 5w30 in your fuel tank? It takes premix oil.
A KDX200 has always been a good choice for woods racing. Any 125 MX
bike will roost by a KDX but the story changes in the trees. Your KDX is an excellent
scooter to learn two stroke riding and will be less maintenance than a CR125. And yes,
proper jetting will let your bike run much better.As far as gear, the Pitdog has always
liked the jerseys that are low in cotton. To me, cotton doesn't wash up nice, rips easy,
and is heavy when wet. I purchased a Thor jersey recently that looks and feels great!
You speak about wanting to be a winner, my young pup you already are.
It takes a lot of courage and family support to even throw a leg over a motorcycle. That
is why FTR racing is so important to us. In our view FTR racing is the Mecca of family,
friends, and fun. Practice your riding skills all you can. Be deserving of the support you
get from your family. One day you will be called to the trophy table to pick up your first
place and will remember the words of the Pitdog.
Yo Pit Dog!! Don't you get some kind of points for
starting a HS Race even if you don't finish?
Jr.
Pit Dog: If you are asking about FTR Hare
Scrambles, all official questions go to them. ( DBJ@TOTCON.com).
You get points from me for just being there with your race face on.
I just recently got a new bike and I know the stock
graphics don't stay on to well. Is there something that can be placed on top of them to
keep them looking good and won't peel?
Pit Dog:You can buy the clear cover material
from you friendly dealer parts department. They buy it in rolls. It is also available at
sewing material shops but may not be as thick. When you put the stuff on, precut it to fit
perfectly and try not to go to the edge of the panel. If you have graphics on the fuel
tank, like an XR, nothing will help. Clean all areas with mineral spirits and buff dry.
You will want to have corners where water cannot get under the material. . To get a better
idea, find a support rider at an event and look at their graphics setup. I don't use the
stuff because off-road racing is so hard on the scoot. I like that lived on look!
Dear Dog, I was wandering what the average width is for
handle bars for Harescrambles racing. I'm afraid to take to much off and ruin the bars.
Also you mentioned earlier about getting professional legal help for letting people ride
on personal property. Do you have any ideas on what or how to protect the property owner.
Thanks and see you at the races.
Pit Dog: I don't cut my bars, 31.5"
stock, 32.5" with back busters, because of weak shoulder rotators. I need all the
leverage I can get. Your decision to cut your bars should depend on where you lose the
most time in an event. Doggedly, I want my scooter to handle the best on fast
straight-aways because that's probably where I'll make my passes. On the other hand, if
you are coming to a complete stop or are slowing way down in the tight stuff, then maybe
cutting your bars will work better for you. Maybe you could take your old steel bars, I
know you took them off the first day, and cut them down to test the ride. I would start
with an inch, total. Also, I don't think there is an "average."
If you are a member of a club within FTR, talk to them about how we
handle riders on personal property during an event. This will at least open your eyes.
Pit Dog, I checked the air in my tires before the race
last weekend at Mayo. Both tires were low on air. One of the older guys said not to worry
about it. He said to let all the air out and to refill my tires to 12lbs. He told me that
the air goes stale in the tires and they loose pressure. He said that every now and then
you have to let the stale air out and put some fresh air in! Maybe fresh air does give
your tires better bounce? What do you think?
Pit Dog: I think you got worked, big time!
It's funny how us older dogs can say something and still keep a straight face. The only
tire air that goes bad is in road race bikes because we use Nitrogen which is lighter than
atmosphere air. I'm sure if you also checked the air in your hauler tires that morning
they would have been slightly low too. When the average temperature starts to drop all
tire pressures will drop with it. That's called contraction. After that chilly morning,
I'll bet your scooter tires were at their lowest pressure for the day. The Pitdog knew
that Saturday morning would be cool for his scooters so he prepped them with 13lb's the
night before. That way in practice I would have 12lb's to go out on. Guess what they were
when I checked them? I also turned my air screws in, but that's another story. Overall, I
need to add air to my scooter tires every few weeks to keep them right on 12lb's. Where
does it go you ask? Through the rubber. Hint; Get a good low pressure gauge that shows
every lb.
Pit Dog, Where is the Power Band on my 2-stroke? Everyone
says I have one, but I can't find it anywhere! My bike is a nice 1997 KX 80 . Thanks
Pit Dog: If you read way down my column I
covered what a Power Band is and why we call it that. Anyway, it's just a way we talk
about how a two stroke makes power. When you are riding in deep sand I know you can feel
when the motor is lugging and when it clears out and starts to pull. That is when the
motor hits the power band. If you want to be really silly, you could wrap a rubber band
around your gas cap and tell all the guys that's your power band, and they better watch
out or you'll put in on!
HEY PIT DOG, GOT A QUESTION FOR YOU. I RACED ENDURO IN
1982-87 HAD A GOOD TIME. WELL, TIMES HAVE CHANGED, AND NOW I'M BACK, MY QUESTION IS, HOW
DO I SET MY BIKE UP FOR ENDUROS? I MEAN THE TAG AND ALL. WE HAD TO HAVE A TAG
BEFORE. HOW DO THEY DO IT NOW WITH NO TITLE? PLEASE LET ME KNOW. I WOULD LIKE TO GET BACK
INTO RACING AGAIN. I TRIED THE HARE SCRAMBLES. THE STARTS ARE KIND OF SCARY, NOT LIKE THE
ENDUROS. MY NEW BIKE IS A 1999 KDX 220, GREAT BIKE. BY THE WAY I HAVE 25 ACRES WITH APPROX
2.5 MILE TRACK THAT SOME OF THE SUNRUNNERS HAVE RIDDEN ON AND HELPED LAY OUT. ITS LOCATED
IN NORTH LAKELAND. THIS WEB SITE IS GREAT. THANKS FOR GIVING US A PLACE TO ASK SOME
QUESTIONS. JAY ALLEN F.T.R #48177
Pit Dog: In the thirty some years of Enduro
racing here, not much has changed. In most areas we still need to show a tag and headlight
so we will "appear" to be street legal as we ride on public roads during an
event. It used to be that you could get a tag for your off-road scooter fairly easily. Now
it's pretty tough. Almost all tags at Enduros are not matched to the scoot. This has been
an acceptable tradition for many years. The Pitdog has to wonder how long will this will
last. I just run a tag off one of my other bikes, zipped tied to the back of my chest
protector, so it doesn't get damaged. The KDX220 will be a great bike for getting back
into Enduro racing. I think you are going to find the front end a little soft for the
whoops, however. I would add 10MM of oil to the front forks and maybe 8MM of spacer to the
springs while I was at it. Be sure to set the rear spring preload again after the front
adjustments.
I'm sure you ridding area is a great thing to have, but if it's your land you need to
protect yourself. I would say get some professional legal advice.
Thanks for the complement on the column.
Dear Pit Pooch,
My son just ran in his first Harescrambles. 9th place out of 18 in his class (mini c ,
80cc ) . Pretty good !!! Anyway my question is about his scoot, an 86' YZ80 that is almost
pristine in condition. Fresh motor, tight susp , mild mods & gobs of power . Will he
be able to compete in this type of racing with the kids on the newer rides ?
Thanks, JAB
Pit Dog: Ninth is great for his first time
out. That's just one reason why FTR racing works for all of us. I would imagine that the
86 model would be more of a handful but afterall, it is the C Class and he did good
already! I start my puppies out on entry level bikes because they need to develop their
skills, not their level of bravery. The down side is that an older bike will be high
maintenance and you will be over that quick. Keep an eye on what the other guys a running
at the front of the class and you will know what steps you will need to move up.
You're welcome, DOG
Yo Dog Dude---A previous question said there is alcohol
in gas. My bike has been acting funny the last 2 rides. No top end power and
hard to start. I just disassembled the carb and found what looked like orange water
in the bottom of the float bowl. Funny thing, I haven't been riding in water.
It runs fine now. Could this be caused by the gas/alcohol/oil breaking down?
If so, how do I stop this? This also happened last year but I figured it was me
washing the scoot or something. What does the dog think?
Pit Dog: Hey, Yo. Alcohol is in gas if you
put it there. Fuel manufacturers are more sophisticated in their fuel additives. Riders
add alcohol to fuel because it will mix with small amounts of water and get pulled through
the engine. It makes sense that removing fuel bowl sludge would restore top end
performance because the main jet pickup is low in the bowl.
For hard to start, cover the basics. Check compression, spark timing, and also look at the
reed plates. Water can run down into the carb from funny places, like the throttle cable.
Most of the time you buy it from the gas station and it ends up in your scoot. I never
pour the last bit of fuel from my container into my scooter. I pour it into an empty drink
bottle and dispose of it later. My suggestion to you is to use as little water, and
pressure, as possible to get cleaned up. The Dog likes the garden hose with the nozzle set
on mist.
Pit Dog, When I fall down on my four stroke I can't get
it to start very quick. Some of the older guys said I need to get a vapor lock clip
installed, And the guys at my dealer tell me they are on backorder, what do I do? Just
what does a vapor lock clip do anyway?
Pit Dog:The Yamaha 400 now has an air vent
knob to assist tip over restarts. Is this adaptable to your scoot? I don't know. But you
could call Greg at K+P (407-656-9686) and ask him the same question. Without one, hold the
throttle open with the decompression lever held, and kick the bike through maybe ten
times. This pulls that splashed fuel from your carb through the cylinder and dries it up.
The Pitdog had to say cya to his four stroke years ago because restarts were costing him
to much time.
I would like to enter the Alligator Enduro. Would you
tell me how to do that?? Thanks, Peter in Wisconsin
Pit Dog: Here's an email address for Kevin
Moyer from Daytona Dirt Riders ddr26@aol.com
He should be able to help you with the form. There are limited entries so act now.
Last weekend several bikes in our group had what seemed
to be jetting problems. It wasn't cold (82°, no real difference from summer in
Florida) and the bikes had run OK previously. One of the riders blamed it on
"winterized" gas. He said they add alcohol (water) to the gas to make it
burn differently in the winter. Is this true? What changes should be made to the
bike to allow for this? Do certain 2 stroke oils react better?
Pit Dog: If the scooters in question all had
a lean condition, they would idle high, ping, and lag on acceleration. This would be the
result of more air in the mix during high humidity or low altitude. If they all sputtered,
had slow acceleration, and wanted to foul plugs, then the air was low in the mix during a
clear day or high altitude. Some people still believe they need to add alcohol to gas to
absorb moisture during the cold season. Major fuel manufacturers adjust their fuel for
climate conditions automatically for our convenience so the alcohol thing is not necessary
anymore. Savy riders winterize their fuel in their scoots that are hard to drain, mainly
because it will not be started for several mouths. This stabilizes the fuel to control
evaporation and separation. Yes, alcohol will make your scoot run differently because it
also leans out the mix. As I've said perviously, smaller displacement motors are more
difficult to tune, and keep tuned, than larger motors. Cool dry air and high altitudes can
make a huge difference in two stroke jetting. The Dog knows it's easier to add straight
fuel to make the mix richer, or more oil to make the mix leaner, than it is to make major
adjustments to jetting that just have to be changed back. Also, yes different mix oils do
react differently. This is another reason to run a synthetic blend. Finally, if you're
ever wondering what your motor wants to run correctly, READ THE PLUG.
What does the Dog recommend for tires here in sandy er
sunny FLA.? At the Enduros I see a lot of the SETRA riders running Michelins. I have
always run Dunlop 752s or Bridgestone M39/M40's. What does the all knowing Pit Dog
suggest?
Pit Dog: Racers like the Michelins because
they have light casing and last very well in all types of terrain. I have been running the
S12s for years with good soft and OK hard surface performance. Recently, I mounted a M25
Bridgestone on my front because a S12 was not available and I needed a tire. The M25 is a
very good sand tire but poor on hard pack. This tire will open your eyes BIG when slowing
from speed on a road, but for me that's just big fun. The 752s have also been popular with
off-road racers because of their soft to intermediate performance. I've never used a
M39/M40 setup so I can't report (all knowing huh?). As far as what I recommend, I would
suggest you run tires that give their best performance in areas where you are fighting the
bike the most. Just remember, it will be trading off in areas that are the inverse.
Dear Dog, With the cooler weather approaching jetting
changes on a 125 are almost a must. I ride a 93 RM and would like to experiment with some
jetting changes. Since I bought the bike new I've been running the factory specified plug,
but at $10 a shot I hate to use them for checking jetting. I have heard rumors that
running anything but the factory specified plug for my bike will damage the ignition
system. Is this true and if not what type of plug should I use for jetting?
Pit Dog: From the price, I think you are
buying the gold resistor plugs for your scoot. The resistor is what's important for
ignition protection. The gold is for durability. On two stroke motors, most riders have
found that the gold is a waste of money because the plug gets dirty way before it wears
out. Therefore, a steel or copper plug will work just as well for the time it spends in
use. These cost a lot less too. Please read some of my other comments in the column about
jetting so you will experiment with some understanding about the results. If you can find
someone with a sand blaster, you could clean some plugs for practice use and jetting test.
In addition, a 93 motor will probably have a lot of wasted cylinder action because of
wear. This makes it more difficult to find safe jetting. It would be best to spec. the
compression and timing so you know what you are working with. The Dog would look at the
plug after every ride.
How can you tell where "Free Zones" are?
2 miles before any gas and finish? And, what about those RESTARTS at Tallahassee?
Was I confused! Good thing we had a LEAD DOG on our row, but what about next time...
Pit Dog: I want to stay away from
interpreting the rule book, but I think you'll find the rulebook very clear. There is a
chapter devoted to enduro rules. If you don't have a copy, contact Dan George at dbj@totcon.com If you would like help understanding
a rule, the FTR officers are your best source for info.
The Pitdog knows that Free Time is when he does not have to worry about riding hot into a
check and costing points. You are "free"! It's like not being on a leash! He
also knows that a Restart is like a Known Control except riders will not pass on through,
you wait just like at the start of the event. The Pitdog has said before that knowing the
rules of Enduro racing is more of an advantage than being fast. It you understand them
completely it will be your magic carpet to a championship. See ya in "free
time."
Dear Dog, I have been running 100 Octane racing gas and 100%
synthetic two stroke oil at 32:1 in my 125 for a few years now. The motor is basically
stock with the exception of a rad valve. She really runs great except, it's lacking a
little on the low end, up top is fine. My jetting is slightly leaner than by buddies bike
which is identical except for the rad valve and he uses pump gas. However my plugs always
look black, not too oily, just very dark where his looks the desired brown color. Is this
characteristic of racing fuel, synthetic oil or am I still too rich? I know you can teach
an old dog new tricks, how about some tricks to a little more low end from my 125 without
spending too much cash?
Pit Dog: Without knowing your model or year,
I'll bark about 125's in general. It's forever been a desire in 125's to get the motor to
pull down low compared to the way they get it on after. Yes, race gas will make a plug
look darker than pump gas because it has a more controlled flash point. Full synthetic mix
oil does not burn as easily so it will be a factor in combustion temperature. Any time the
combustion temperature is below optimum, you are wasting horsepower because after all heat
generation is what the motor is doing. I would first check the compression for correct
spec. Then I would check spark timing for spec. If those were OK, then I would start
working with pilot sizes while doing plug checks. As I mentioned before, smaller
displacements motors are harder to tune. They also are affected by air conditions more
than bigblocks. Being rich on your jetting without fouling plugs is safe. Being spot on is
cutting edge but risky.
Dear Dog, I have a Croom trip planed from 11-10 to 11-13.
I would like to leave from the Croom to the Hilliard MX track. If you could help me get
directions you'd be a big help.
Pit Dog: How's this? Looks like a three and
a half hour drive, without walking the Dog, from Brooksville.
Start on I-75 at Croom.
I-75 North for 82 miles
State Hwy 121 North for 2 miles
State Hwy 331 North for 3 miles
State Hwy 24 North for 13 miles
US-301 North for 72 miles to Hilliard
The track is 5 miles North of Hilliard on West side of US301/US1
Pit Dog, who are you?
Pit Dog: Well, well, well. The Pitdog talked
to a number of riders at the Capital City Enduro who knew who he is in person. The Pitdog
uses FTR history in his answers to make an example of what he is talking about, and does
not try very hard to hide his identity. The real purpose of the column is to answer
serious questions for riders with a light approach. If everybody knew who the Pitdog was,
the column would loose its entertainment value and that's the secondary aspect. The Pitdog
knows that veteran riders already understand what's needed to fulfill their needs for
off-road riding and racing. He wants to help those that have questions and that in turn is
entertainment. The Pitdog is asking riders to keep it under your hat so the show can go
on.