--- In yerfdoggx150@yahoogroups.com, "Mario" <newastro2@y...> wrote:
> The reinforced spindles held their ground, but the main problem
now
> is that the lock nut holding the bottom of the spindle to the
swing
> arms is coming loose every half and hour to 45 minutes. I also
have
> he same problem with the tied rod ends for the steering.

I noticed this as well on some of the A-arm ball joint studs on my
3206. I believe this is happening because the ball joints might be
too stiff on some karts. I removed the rubber boots on all my A-
arm/spindle ball joints and cleaned them up with brake cleaner
spray. Then I sprayed them with some lube and worked the joints
around over and over to try and loosen them up. At first, some of
the joints were so stiff that they would not even move by hand.
They felt seized and were really stuck good. I put on some thick
leather gloves and began banging on the ball joint studs with my
hands to get them to move. I didn't want to use a hammer and mess
up the threads. Using a piece of wood to hammer on the ball joint
studs to get them to move around might also work. Eventually, they
seemed to loosen up. It took quite a bit of moving the joints
around to loosen them up. If the ball joints are loosened up and
working properly, then the ball joints should rotate when the wheels
are turned - and the locknuts should be much less likely to be
turned loose.

> There were additional rattle noises in low speed, but after
checking
> almost every bolt and nut in the frame, I think it is just the way
> the frame resonates at low speed.

I agree. There is a definite resonace/rattling that occurs at under
3000RPM. Seems to really buzz around 2500RPM or so. If I get that
resonance/rattling sounds, I just hit the gas and bring the engine
RPM's up a little and it goes away instantly.

> I believe part of the problem with the rough ride is the rear
swing
> frame, where the engine is mounted. It just does not seems to move
> that much when driving over uneven terrain. The front suspension
on
> the other hand since to be moving and dampening very effectible.
>
> I may have to adjust the rear shocks to see if softening the
shocks
> produces any noticeable improvement. (Are the rear shocks supposed
to
> be hydraulic too?).

They are supposed to be hydraulic shocks all around on the 3206 &
3209. They don't seem like very good shocks to be which is why I
ordered the new shocks. My 3206 came with the rear shocks set to
their lightest/softest setting from the factory. If yours did too,
then you won't be able to make it any softer. One thing I found
that helps soften the ride over rough terrain is to drop tire
pressure a little. I tried 10PSI FRONT, and 8PSI REAR and it seemed
to help quite a bit.

> That's the last ride for this week, since we will have to wait
until
> next weekend to ride again.

My new carb is supposed to arrive here this week, and I look forward
to driving my 3206 again - when it's running properly again!

Edward
Yerf Dog 3206
http://wwww.key-ideas.com/Yerf-Dog-3206-3209.htm