GPZ600R Enginer & Handling Issues - Any Suggestions?

The aussies I know seem quite happy with BT45s & Queensland isn't
renowned for being cold and rainy...

 

I have a set of BT45V's mounted on my old GSXR750, and I rode 100
miles on them last week.

The Sierra Nevada pass that I rode over has fairly light traffic, but
a lot of cattle trucks and trailers and tradesmen trucks go up there,
so the road is rough.

It's open range country too, so I had to dodge steers and cows and
calves and pick my way through the cow poop.

All in all, it was a rough ride, just like Usenet, and the BT45's
didn't improve my comfort.

 

Krusty never posts to RMT.

That's when YOU got jealous and started throwing a sissy fit...

You and your gang of pikey wankers from UKRM (and the poseur know as
"S'mee") have certainly turn RMT into a can of worms at the bottom of
a cesspool.

Nobody asking an innocent question could ever sort out the snarled
mass of conjectures hurled at him here.

Bullshit. Google Groups allows me to change my nickname with every
message if it pleases me to do so.

 

I was talking to some guy I knew from a motorcycle e-mail list in Los
Angeles and he had a set mounted on his 1986 750 Interceptor.

I asked him if they were any good and he claimed to like them.

Also, the leader of that particular band of bikers said that BT45's
came as original equipment on his Hinkley Triumphs.

He said that the BT45 was adequate but the initial traction level
faded quickly.

But, I figured that I was going to ride with that crew quite a bit in
the Santa Monica mountains of Southern California, where you can't go
very fast anyway because it's all tight and twisty and the curves are
all blind on the mountain side.

I quickly discovered that the BT45's squirmed noticeably when the
traction level increased due to the size of the pea gravel used in the
macadam mixture.

I also noticed that the BT45's lacked resistance to crosswinds when I
got blown across my lane into the oncoming lane.

When I see an 18-wheeled truck coming the opposite way, I will pull
over completely to the righthand side of the road and slow down as
much as possible to avoid being tossed around by the trailing
vortices.

The Dunlop K-591 tire I previously had on the rear was very resistant
to crosswinds because it was 20mm wider and it also didn't have those
deep water channels.

So far I have about 5000 miles on the BT45's and it looks like the
rear has only
worn 2mm maximum...

 

Wouldn't be anything to do with the shtty old bike they were fitted to,
then.

Face it: all your pronouncements about 600Rs are nonsense.

In fact, all your pronouncements about anything are nonsense.

 

Yes, you do. If it pleases people to call you that....

 

Naw the bike is fine...but he's never owned one.

Yes, yes I'd have to say you are correct he's been entirely wrong.

heh understatement of the millenia.

 

Nope that's when some of us started calling you on your lies. It's
just that simple you none riding bastard.

Uh actually it would by you. When called on your BS and out right
lies, plagerism and cut and paste theft you get upset and start
slinging mud and prevarcating. Things you really shouldn't try with
your betters...especially when said betters are better at all that and
more. Some of us like wrestling the pig and making it mad by winning
whilst staying clean. Now piggy I suggest you piss off...people of
your class arent' good enough to be around mtorocyclists.

Projecting again areen't you? It's made sense to me.

heh he's mostly correct BUT that is the 2nd or 3rd email addy in the
last year that you've used...you silly silly cowardly bastard.

 

Well he was talking about either going digital OR switching to plain
bearings for the meter...new radium paint for the clock to I suspect.

 

Hi. Thanks for the replies guys. Looks like I've got some things to
attend to. Unfortunately I've been really busy recently but it will
soon have my attention. I had a proper look at the bike over the
weekend and I noticed that the shock is broken. When I say broken I
mean that there is a substantial crack/split in the bottom clevice of
the shock. Therefore I am not riding it and the first thing I need to
work on is getting another shock (as this could be the cause of my
handling woes).

Does anyone know how I might be able to get hold of a second hand
aftermarket shock that I could make fit on the GPZ600R? I reckon
that's the most sensible option as a new shock is very expensive and a
second hand original will likely be badly worn anyway. I'll be getting
the shock out of the bike this weekend to measure up what I need.

I'll be moving to a new place next week that will allow me to work on
my bike in a garage, ooooooo . So when I can I plan to get as much
done as quickly as possible so I can ride the thing

Cheers

Rabbit

 

If it were me, I'd like to have a theory as to why the clevice
broke/split before I replaced it. Maybe nothing or maybe there is also
something wrong with the swingarm or axle or mounts or chain or sprockets?

 

Cracking around the mounting hole?

The cracking might have been caused by binding during the movement of
the linkages due to lack of lubrication at the pivot points or
overtightening of the bolts.

Or somebody may have installed the shock and omitted one of the
critical spacers...

If you think you have handling problems now, don't expect improvement
from a shock/spring combination that came from a completely different
motorcycle.

Swapping shock/spring units is an exercise for the experts.

You might want to check out www.racetech.com to see if your shock
absorber is rebuildable.

It's also possible that a skilled welder could repair the clevis on
the shock you have and TIG weld on an extra steel washer to beef it up
in the area around the mounting hole (if that's where the crack is).

Then you would have to carefully install the shock so that it isn't
binding from too much tension on the mounting bolt.

 

eBay, any day of the week, but it'll probably be knackered. too.

Not really. Something like a Hagon unit will be around £300.

You could buy a used 600R shock cheap and get it professionally rebuilt
by Maxton, who charge something like £125 for the job.

A quick hunt on eBay shows a 600R shock, claimed to only have done 9000
miles, up for £45 on a Buy It Now.

http://cgi.ebay.co.uk/260658120785

There's your answer.

 

Ebay or check IKON they might have shock for your application. I'm
sure somebody has suggested that you look into why/how it broke though
it could be just simple fatigue. Don't forget sometimes things just
break beacause...<shrug>seen that enough times to know it happens.

 

actually that would be a fallicy. But being as you never actually work
on motorcycles and get your facts for web pages you wouldn't know
something like that.

 

Look here, you stupid little cocksucker: even changing the lower
mounting point of a stock shock by an inch or two will make a decent
riding motorcycle into a torture rack, so don't try to tell ME that
you don't need some expertise when swapping whole spring/shock units.

 

Why would you change the lower mounting point when swapping shocks? If
they're the same length (and replacement parts ought to be) you don't
*need* to start choppping mounting points about.

Just unbolt the old and bolt on the new. Even you can do that.

Doh.

 

You don't even know what I'm talking about, Hanky Mincer, so stay out
of it.

 

Translation: Krusty screws up again )

 

That make two of you.