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[turbobike] rebuilding parts for the ol' GS550E

Dave Schumpert (porsche_boy@vt.edu)
Mon, 12 Apr 1999 00:21:01 +0600

i have a few questions on how much i should overcharge my credit card for
bike parts.  i finally got the thing all apart on my bedroom floor, and i'm
staring at the spun and very ugly thrust bearing.  surprisingly, the #2 main
bearing looks fine, but i think i'll replace it just in case.  i'm going to
plastigauge every bearing to make sure none are out of tolerance.  the bike
has a hair under 18k on it, and it's an '83.  it seems to make good power,
and the only funny noise is that damned ticking when not in gear.  my parts
man seemed to think it was tranny or clutch because you could only hear it
when out of gear, but i seem to remember hearing it faintly while riding in
my neighborhood.  my friend has a ninja 250, and his used to make a constant
ticking sound too.  turns out his was the cam chain tensioner, an easy and
cheap fix.  i'm guessing that's what mine could be as i can't find any bad
bearings in the tranny, or any worn teeth or anything that would cause the
ticking.  the only thing that was wrong before i split the case was the dogs
on the 6th driven gear (3rd gear on the output shaft, i believe) were broken
off, and all sitting in the pan.  they didn't seem to get stuck in any gear
teeth on the way down, so i'm still kind of wondering what the ticking could
be.  any ideas?  also, should i go ahead and replace the rings in the engine
being that i have it completely apart?  how much does one typically pay for
a set of rings?  should i get a particular brand, or are zuki rings fine?
also, what's the going price for main bearings?  i called colemen powersport
today, and they said $17 for the thrust bearing and a main bearing.  doesn't
seem too high, but i'd rather not put $120 in a new set of main and rod
bearings because i've already spent $75 on the gear and gaskets, and will
need to spend another $20 or so for a new head gasket, cylinder base gasket,
and the thrust and main bearings.  lucky me, the voltage regulator is fried.
those are $118, but i have an old one from our FSAE car, and i'll see if it
works next weekend.  failing that, i'll try to pick one up at advance auto
for $12.  my friend used to work there, and says that old dodge 318's used
to have three phase alternators.  does anyone know what brand of voltage
reg. is cheap and good?  the aftermarket ones dennis kirk used to sell for
$76 suck, and would always burn up.  i've heard the ones out of the honda
600 F1 are the beefyest, but for that item, price is the main sticking point
as i only paid $500 for the bike.  i assume i should readjust the valves
because i took the cams out, even though it was just done before i got the
bike.  sorry this thing is so long, but it's my first attempt at rebuilding
a mtor, and i don't want to fuck it up as it's getting really nice now, and
i REALLY want to ride to class and be able to park right behind randolph.
the chick factor is a plus too.  thanks for all the help.
later,
Dave Schumpert
'95-'98 VT Motorsports FSAE
'73 914 2.0
'83 Suzuki GS550E