z500... advice sought from the old farts

Gents, you know who you are...

So the Z500 (with sidecar) needs to be in fine fettle for the
Elephantentreffen in January.

I've sorted out the issues with the sidecar, serviced the engine
including replacing the coils/condensers/points. However, on occasion,
when I give it throttle WFO for some time, say 2 or 3 minutes, it
sometimes loses power; probably only one cylinder. Throttling off seems
to address this.

What's this likely to be? I don't think it's ignition due to the new
coils/plugs/condensers/plug caps/points. So is it crap in a carb?
damaged diaphragm?

I really don't want to strip the fucking carbs if I can avoid it since
they're prolly welded in place with 27 year old rubber...

 

Using the patented Mavis Beacon "Hunt&Peck" Technique, Champ

You can even do the left hand pot from the comfort of the chair, IWHT.

--
Wicked Uncle Nigel - "He's hopeless, but he's honest"

WS* GHPOTHUF#24 APOSTLE#14 DLC#1 COFF#20 BOTAFOT#150 HYPO#0(KoTL) IbW#41
SBS#39 OMF#6 Enfield 500 Curry House Racer "The Basmati Rice Burner",
Honda GL1000K2 (Fallen apart)
Suzuki TS250 "The Africa Single" Honda ST1100 wiv trailer Norton 850 Commando
Kawasaki GTR1400

 

New coils, the old ones had damaged leads (cracked) and one of the coils
was cracked. You're right about the leads being fixed to the coils.

Done all of the above with the sole exception of the shims. Am a little
reluctant to do this 'cos I'm lazy. Suppose it would make sense to have
a look at the cams etc. but to be honest it all sounds fine.

 

**** off.

Sounds like fuel starvation. Is there a fuel filter involved anywhere?

 

He's waiting for you to lose patience and come over and just do it for him.

 

Don't think so unless it's one of the mesh types in the tank. Will try
it with the tap turned to "prime". Simon Batey may have hit the nail on
the head about the vacuum tap. Could also look at the breather in the
cap I suppose.

 

Oh, I'm sure they are but:

1) There's already damage in that area caused by the fecking muppets
overtightening a too-long screw in the cam cover casing.
2) All the rubber bits will be trash.

It's on the list; together with (possibly) rebuilding the fuel tap,
balancing the carbs and er... getting it MOTd.

 

Oil and filter is a given but shims? I wouldn't - unless they're making
a horrid noise now.

 

It's the tap, tap filter or one of the needle valves is running slightly
slow.

You may want to chop the plugs when it starts running off - I'm pretty
sure the carb giving trouble will run weaker.

Airline on the fuel inlet may blast the shit out. Same on the tap in the
may save rebuilding it.

 

If it's the tap filter wouldn't it be easier to cut the fucker out and
fit an inline one (or would that risk gunge-ing the tap innards up with
shite from the tank)?

--
Dan L

Too much time to think, too little to do.


http://thebikeshed.spaces.live.com/
1996 Kawasaki ZR1100 Zephyr

BOTAFOT #140 (KotL 2005/6/7)
X-FOT#000
DIAABTCOD #26
BOMB#18 (slow)
OMF#11

 

Good point.

It's only a Kwack anyway - I'd probably risk it.

 

wrote in message

Well, today's 300 mile training run suggests it's the vacuum tap.
Moving it to "prime" removed the problem on two occasions.

 

The Trophy had a couple of tiny hidden filters in the T-pieces of the fuel
lines. Once cleaned of rusty gunk, the fuek starvation symptoms went away.

 

<shout>

I've booked my ferry crossing. [1] Now I have to make the Benly fit
for purpose. Can someone take it away and bring it back when it is
done please?

[1] The combined powers of alcohol and Bonwick are formidable.

 

Bring it here and we can fit new sprockets.

 

Hmm.. UK leg; 206 miles to Harwich ferry, then 900km to Thurmansbang.

Double it... so that's about 1500 miles.

Well it'll certainly build my shoulders up. Whilst the outfit doesn't
pull on a level surface, throw in a bit of slope or camber and I'm
constantly making adjustments. Yesterday was quite hard work; must
spend more time in the gym. Alternatively I wonder if a steering damper
would make much difference?

Regarding recovery, I'm afraid if it dies then it's likely to be left
where it falls.

 

Her sights and sounds; dreams happy as her day;
And laughter, learnt of friends; and gentleness,
In hearts at peace, under an English heaven.

 

Heh. I think the earlier line should read

"In that rich earth a richer rust concealed" though.