GregT

I can't help thinking I should point the Simpson family at a good cat groomer - and shout Oscar a good groom.

Both Oscar and Bart would be happier.

That's Neil Hintze's bike isn't it.  Met him.

Yeah, that's common sense. If it's drain down, there's always the option of a tap. And a large warning notice.

No idea if it's relevant to these engines but the first thing you do on a Ducati single is rebuild the oil pump. Bronze bushes with no seals so wear lets oil piss out and fill the side case. In your case I'd assume it's drain down from the tank ?

4 hours ago, shrike said:

Whats the Motor meant to make powerwise?

They're torquers, not huge HP makers. I'd imagine around 90hp at the wheels with what Alex has done to it.

Well done. Sounds typical Honda as you'd expect.

Oh please turn up to a register event with those.

If you tried that on the early 70's R/T it would have broken in half - as did my mates one

1 hour ago, jessemk2 said:

Probably be a +20k dirt bike 

Wonder what happened with triumph entry?

https://racerxonline.com/2024/01/22/ducati-desmo450-mx-revealed

Takes me back to the 450 R/T dirt bike back in the day. Mate raced one in BEARS for a while. Before the motor went into a decent roadrace chassis the R/T made a splash when he lost it in a big way at Levels and it went over the bank into the spectator area at the South end of the circuit.

Hope this version handles better.

Judging by what i was seeing at the Nationals, some of that dosh might be better spent as a travelling fund.  

A lot of those motors went into cars I think. That class isn't big down here.

The big tourer motors aren't the best basis for a race GSXR.

8 hours ago, ThePog said:

On the other hand, I wondered about just having 3 unlabelled control wires poking out the dash.

Piece of 7/8 tube sticking out and 3 of these would work.

1 hour ago, SOHC said:

They re did it for free, it was 3 thou deep, thing would be worn out before it polished smooth.

I had to clean up the chamfer job 

Ouch...that suggests to me it's seized there previously (hot spot under exhaust port) and been hand sanded clean. Over vigorously.

52 minutes ago, SOHC said:

I know someone who has depleted uranium bar for making counter weights, its heavier than tungsten 

The flywheels are tiny for a 250. There's a cover sheet on the outside over god knows what cavities so an outside flywheel looked like the best way to get a little extra flywheel weight - and by offset drilling, balance the sucker. Never going to have the room for inserted weights.

There was a guy here running a balancing consultancy. He also had access to depleted uranium. Think it may have come from the University of Canty reactor.

On 02/07/2012 at 17:53, governorsam said:

Volt meter and vacuum. Would be my pick.

Amp meters are a bad idea.

Everything runs through them, if they fail so dose the car.

Only just seen this dredged thread. I wasn't aware you'd ever owned an old Jag, Sam. Literally every circuit in the car goes through one of Joe Lucas's smallest cheapest ampmeters. Placed where it's bloody near impossible to replace.

Well. colour me slightly surprised. Waiting for the AJS barrel spacer to appear from Autobend's laser cutter I thought I'd have a look at the crank balance factor. I decided I want to at least start with 60% balance factor. So it was set the crank up on new bearings in the cases upside down with the whole thing sitting on the four barrel studs and the rod hanging down free. I'd already pulled out the digital scales and got the figure of 86g for the rod small end. The piston, rings, pin and clips plus needle rollers came to 312g Total reciprocating weight 398g  60% of this 238.85g  Less the small end gave 152.8g as my checking weight.                                                                                                                                                                                                 When i put weights onto the free hanging rod to find out the amount that would balance it as it stood, I came up with 142g at which it would stop and stay anywhere it was placed.  So it is already counterbalanced very close to my desired figure of 152.8g  Call it 10g to come off the light side of the crank to get to 60%    This will be done by drilling a 3.3mm dia hole in the small exterior flywheel I had Anton machine up. Through the 12mm wide rim that should be 10g

Now, the surprise is because it has a longer rod, a bigger OD crankpin - hollow - probably a lighter bigend needle roller and a forged piston vs OE cast. I really didn't expect it to be anywhere near this close.  And believe me, i've checked my figures carefully. Standard must have been around 66%.

35 minutes ago, ThePog said:

Yea na, I already talked to them and they quoted $240 + shipping. Just no cunt.

They need the reality pointing out to them. It's sell to you or scrap it in a couple of years. X1/9's aren't going to suddenly crop up everywhere as projects. My limited experience with them wasn't good either.

1 hour ago, ThePog said:

Whereabouts was that?

google Car parts Canterbury.  they have a site - and a small office in Hornby/sockburn  Active on Bidbuddy - which i know nothing about.

Last time I was in contact with the wrecker in ChCh who has two shells, most of the interior was still in one.  The problem with this wrecker is that their physical presence is tiny with the stock elsewhere and parts brought in to office by arrangement. No looking at the wrecks.  I found them not very co-operative either.

For a bike this size and weight in my experience with pre82 racebikes you're looking for a trail figure between 88 and 98mm

Less than that is unstable, greater is heavy steering.   That's with modern 17in front on a 3.5in rim.

Kawasaki triples have less offset than the OE suzuki. Add in the larger tyre OD and i'd reckon trail's gone up quite a bit.

Seen worse. The chain itself would have kept things aligned.

Looking at the front end, I suspect you're going to wind up with a very stable bike. The head angle plus the offset on the ZX triple clamps have given you a lot of trail. More suitable for drags than circuit use. As stock they steered very well on track but you've dialled in more trail which will make it feel heavy. We'll see.

11 minutes ago, SOHC said:

Haha fuck that bad.

I dont know what to say in my situation, i handed them a cylinder and piston and they did the job but i with they had stopped and told me

These days I only use people I've known for years - and trust. The reconditioner I use I used to build his TQ engines when he was an apprentice living next door to me.  We were very successful over the years - and he's aware that a large part of his reputation came from engines I built, lol.

7 minutes ago, cletus said:

I had fork seals done by honda about a year ago

The same fork still leaks about the same amount as before, they did the inner fork seals but didn't do the outer wiper seal which was perished/ cracked so had to take it back for that at the time, then I painted the forks and re fitted them 

I asked them to do bushes if it needed them but they said it didn't 

There doesn't appear to be any play and the chrome looks ok from what I can see on the outside 

 

 

Is fork seals something that is difficult or problematic usually? 

05 honda cb900f /hornet  

You'd be surprised how many shops have fitted the seals the wrong way up.....

If you've got a rattle gun it's an easy DIY job.

3 hours ago, SOHC said:

Yes it goes up in 0.5mm sizes, it didn't clean up at 0.5 so I will go to a 1mm.

 

I just think its a bit shit they didnt ring and say its not cleaning up

Better than a case I know of here. Barrel - CR250 - and piston - .020 over - handed to reconditioner.

Handed back bored 2mm over - with no explanation. Finished up in small claims court costing reconditioner a new barrel.