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recently im feeling like this is a dry build rather than a final build...

This evening I Fitted a new 38T rear sprocket and fitted an old chain to calculate the length of new chain needed, but ran into a few issues previously overlooked or missed.

I really need an 8mm offset front sprocket which will line up with the rear chain on a standard un-shaved carrier and also clear the inner face of the chain tunnel of the swingarm. I was hoping a 4mm offset would work but the chain is too close to the swingarm.

Running the 8mm offset or any offset for that matter creates 2 problems, (a.) the chain will hit or run too close to the exhaust and (b.) the chain and sprocket will be too close or hit the clutch pushrod actuator on the inside of the side case.

Problem (a.) can be over come with a secondary chain roller ?????

Problem (b.) ?????

great reading
interesting to hear there are lots of development plans for the future
and great to see 2strokes taking big 4's.

Been tipping along with various little jobs, got the clutch fitted finally. 250LC Microns are now fitted. I had a set of short springs for this so I made some W clips to make up the shortfall of the springs and coated them in red high temp paint.

yup looking good, they are a popular tyre choice.
are you going to refit them?

Finished the ignition system today by setting the timing and fitting the flywheel followed by fitting and torquing the heads.

The gap betwen the pickup and the ramp on the flywheel is set to 0.016 and the timing set to 1.89mm BTDC.

The heads were fitted and the newely coated red head bolts torqued to 19nm.

not bad at all, its had an eventful past.
nice to see it still going.

that is some takeover! super collection and a nicely populated shelving system!!

Yes correct, thanks m in sc!

I did a bit of tricking around with it this evening, I think I have the wrong thrust washer.
I recon the correct washer is quite thin.
I can tighten up the nut to 60nm and the centre hub still turns, I going to order a 74/75
thrust washer and see what happens.

Hub with thrust washer fitted behind pushes it out over the splines by quite a bit


Hub without the thrust washer sits flush with the splines,
it seems the nut and dome washer actually tighten up against the splines rather than against the centre hub!

apologies for jumping over and back on various parts of the build.
I received the bearing retaining collar last week and needed to pick up a
29mm socket for the clutch centre nut. I was hoping to get the clutch
basket installed last night but proceedings were halted fairly swiftly.

When the centre nut is torqued to 60nm the clutch is fully locked up,
nothing will turn (easily) the inner basket will turn seperate to the outer
only with a ratchet on it. the two are obviously mated together.

I recon I have all the parts in the right place though....



Bearing retaining collar
stepped washer which sits into the above collar
spacer with worm groove
Outer basket
Thrust washer
Inner basket
Domed washer
Nut

the first image below shoes the nut on the shaft, forgot to remove it for the pic.

welcome to the forum, i like the white one, i like the style!

hmm, maybe an RZ type cover?

That looks really good for a bike thats sat so long, not that much dust
or corrosion as far as i can see.

i recon the way to go would be to leave it original/stock

nice find

Im using a standard YPVS F2 airbox but an issue has arisen and I see a problem ahead connecting the carbs to the airbox rubbers.

The carb to cylinder inlet rubbers dont line up with the airbox rubbers, hopefully there is enough play in the rubbers to make everything connect.

I need to setup the carbs after the ultrasonic clean and rebuild the had recently.

Im thinking I may have to get an angled reed block spacer made up to correct the angle of the carb?

i always loved the idea of a dry clutch, it looks great
but i would like to have the oil pump enclosed/covered

Small update while waiting for parts, I fitted a different Aprilia front caliper (ive a few of them with new seals) as I didnt feel the red didnt suit the dull gold of the rear. I made up a new Goodridge braided line with stainless banjos. I was short a stainless banjo bolt with the right thread pitch so fitted an old one anyway.

Got the reservoir relocated for a better pipe connection to the master cylinder with new clips.