Aaron
1999 YZ125
#691
Redline Race Team
Isn't one way to put like a fender washer in the exhaust outlet, before the
pipe - that necks-down the output and chokes up the engine. You can drill the
hole out more to allow more power.
Someone please correct me, I could be VERY wrong.
I think you're doing the righ tthing, 80's can be wicked with abrupt power, and
you don't want to frighten your 7-year old son off from riding ever again...
DirtCrashr - '97ktm300mxc
Special thanks to:
Jeff at MXSouth.com
and Phil Douglas' Aftershocks-suspension.com
and Jim Cook at Smackovermotorsports.com
Brian
Dew Crew
92 Huffy
I'd be interested to see what others think on my idea. I'd take the slide out
of the carb, remove the throttle cable, put enough small thick washers around
the cable to limit how much the throttle can be opened. I'd guess that this
would take about twenty or so washers.
Mark
97 Ducati 900SS
91 KTM 540DXC
61 BMW R69S
>Richard,
>
>I'd be interested to see what others think on my idea. I'd take the slide out
>of the carb, remove the throttle cable, put enough small thick washers around
>the cable to limit how much the throttle can be opened. I'd guess that this
>would take about twenty or so washers.
Brass tube
>Mark
Mark
Don't let all these BS posts lead you astray... My son rode an 80 at the age
of 7 (he is tall for his age) and here are some tips. Now, keep in mind, my
son started racing at 4 yrs old, but as long as your kid learns his limits and
learns the basics, he can do it.
First... Teach him the basics. (you probably already have) Gas... Brakes...
Front vs. back brakes... Clutch! Spend LOTS of time on the clutch!
Shifting... When to shift... Etc.
Then start by having his sit on the ground with his legs out and lay the bike
over his legs. (Turn the gas off) Teach him how to get out from under the
bike when he goes down. Then try having him lay down face first and lay the
bike on him. It won't hurt him, the idea is to get him in the mode of knowing
what to do when he wrecks and the bike is on him. Kids have no fear and they
are ready to ride from the moment you mention riding to them... Then, when
they wreck and get hurt (depending on the kid) they can be done. Teach him NOT
to panic when he is down. I taught my son, and it has become almost an
instinct, that when he goes down, get up, pick up the bike, get to the side of
the track and THEN figure out what hurts. I feel this is important even when
they are riding in the back yard. You would be supprised how little crying you
will experience if their thoughts are along the lines of getting up and picking
up before thinking about their elbow that they just hit.
To "tame" the bike... If he is a little short (can not touch flat footed),
raise the front forks in the triple clamps about a 1/2 to 1 inch. Then add
some sag to the rear shock. This will lower the bike a little and help them in
the turns. If he still can not touch flat footed, get a block of 4x4 and teach
him to use this with his RIGHT foot to control himself when sitting still (wood
stump, pile of gravel, anything will do in the yard).
If you have a KX without the powervalve (KIPS valve), and the bike is geared
tall or low, change the front sprocket one tooth. This will make a big
difference in clutching and taking off.
Make sure the bike is jetted correctly, and keep it jetted correctly. It is
not hard to learn how to jet and it can make all the difference in the world
learning to ride. If the bike has a bog in the start of the throttle, it will
be difficult learning how to take off with the clutch. Also, make sure the
spark plug is good. A fouling plug can be more than frustrating.
If he is learning and you have compression and rebound adjustment on the forks
and shock (see your owners manual), make the settings soft. If he is learning
how to ride, he won't be jumping any 30 foot doubles for a while, set the
compression soft for his size and weight and back the rebound out a click.
I went through all of this (except that he had rode a one speed 50cc bike for
three years) with my son just a couple of years ago. As your son picks up the
speed and becomes more aggressive, gear the bike back up and adjust the
suspension accordingly. Most of all, try and give him lots of time to learn.
Don't get short, ensure him that if he breaks plastic that is why it is
plastic... Bikes are made with plastic so it is cheaper to replace, if they
were metal, the body shops in town would be busy all of the time! (We know,
but they don't have too) And, stand behind it!
We have taken a year off racing (this past year). I told him to go out there
and tear up that Y2K YZ 80, and he did! Rear fender, front fender, seat torn,
rad shroud... All just working to get aggressive again. He has been finishing
about 4th so far... I told him that his first second place trophy, he gets the
plastic replaced. Make a deal with your son... If he doesn't race, tell him
that if he can learn to ride and bring home good grades, you will replace
damaged plastic, or buy some new graphics or tallon hubs with excel rims (that
is what Ty gets with his SECOND win! Hey, the first win COULD be a giveme.
<LOL> You will be supprised how little deals will motivate them. Good luck!
TMax
'94 RM 250,
'99 PW 50,
'00 Blaster,
'00 YZ 80s
>Whats the point of putting your seven year old on an 80? <snip a bunch of BS>
Your obviously right... The AMA 80cc 7-11 class is obviously for the older
kids.
A KX80 is WAY too much bike for a 7 year old. I'd recommend parking it for
at least 2-3 years.
Short of that, you can restrict the slide movement in the carb using a small
piece of vacuum hose around the throttle cable inside the carb body. Size
the hose length to limit the opening of the slide to half-throttle (sort of
like what Yamaha did with the WR400).
Jay
Bad idea Aaron. That's like teaching a beginner to ski on a Black diamond
trail and telling them that if they lose control and hit a tree they will
die. Not a good idea at all.
It may be hard for you to remember, but think back when you just started
riding. Everybody at least once had the time when you gave the bike too
much throttle, lost control as you approached warp eight, then just held on
in a blind panic with your eyes as big a pie-plates until you either hit
something or went over backwards. I posted the experience my wife had on
her first day on a bike... It is physically impossible to get the venerably
anemic KLR250 to lift the front wheel YET she somehow managed to force the
poor bike into a full-throttle balanced power wheelie for a solid 50 feet
across my yard - until she hit the swingset. Hell's bells. A top-end
limited bike gives a beginner time to recover from a panic-inducing loss of
control without forcing a crash.
Jay