The Helios Project (Aprilia RS 125 Rotax 122 Biaggi Race Replica)

[NINJA]

@Calum Your new workshop floor matches your bikes perfectly, is that your favorite colour by any chance??? :grinning_face_with_smiling_eyes: :smiling_face_with_open_mouth_closed_eyes: :smiling_face_with_open_mouth_cold_sweat: :face_with_tears_of_joy:

[declan]

@Calum how longs it been since you saw the dt in person?

[Calum]

@declan I saw it quite a few times since I put it into storage. Hadn't ridden it since 2014. But I have used it a fair amount now.

[oldman]

All looks , can't beat a man cave!

[oldman]

PS, I'll be round for a test ride on that rs one day!

[Calum]

@oldman you and me both. Just needs the final few touches

[Calum]

Obviously I have finished this project and I'm not actively buying stuff for it. But my Dad wanted to know what to get me for Christmas, despite insisting that I didn't want anything, he was adamant to buy me something. I told him to get me this.

And yes, I am pleased with it.

My aftermarket OEM lookalike leaked fuel, so it's nice to have a high quality item that shouldn't leak fuel.

I am sure I will find some use for this brand new one another time.

[Calum]

So close to being ready

Unfortunately, the used gear linkage I bought was just worn out so I couldn't get the rearsets fitted properly.

The pinch bolt has been stripped and the teeth spin on the output shaft. I was just struggling with this for a while and bit the bullet on buying a new one, quite expensive for what they are (£20).

It's adjusted perfectly now! Setup like a dream.

And the brand new fuel tap I bought leaked, thinking it could be the tap or the tank but again another £20 on another brand new tap and that seems to be fine.

[declan]

@Calum beautiful.

[Calum]

I did keep this a little hush hush, but after what was a very unsuccessful outing

The bike broke down in several spots, bits fell off and I badly damaged my linkage rod

A new rod was on order immediately, as well as the tie rod. Which aren't cheap!

The fuel tank still leaks! I tried a spare tank and that was the same! So I just went with a genuine tap and NO LEAK!

So it's just addressing small issues.

I love wing mirrors, but they are pointless on this bike as I can't see jack!

So I've got rid of those and need to get some blanking plates.

The linkage arm would randomly stop selecting gears and I don't know why. Perhaps I rebuilt the engine incorrectly? Well a cable tie on the linkage rod has fixed this issue.

Oh and the clocks I bought don't work. I have a spare one but I think it's a faff to change.

But this bike is finally starting to stop showing problems. I've been able to get out and enjoy bedding the engine in. It's been really stressful but I guess it's all par for the course!

Hopefully, when lockdown is over, maybe I can use it a little more.

[declan]

@Calum yeah when you go through a bike completely there's bits you miss and bits that just break or fall off shit happens looking good though

[Calum]

Bike fired up into life with little to no dramas after 6 months of storage.

https://youtu.be/a5Nc9Fd5jvM

Since I last rode it, I removed the RAVE solenoid in favour for the Italkit adjustable pneumatic valve.

Was excited about taking it for a spin...

I made it to the end of my drive and tapped the rear brake... Sezied solid. Locked the wheel up and it was a effort just to get it back into the garage!

The master cylinder had seized. So after checking the rear caliper for damage, I set about sorting the master cylinder out. Dismantled it fully, it it with a blow torch and that seems to have freed the piston!

Just come back from a quick blip up the road! What a machine!!!

I absolutely love the power delivery of a smoker. Amazing.

[NINJA]

@calum Sounds wicked bro!!!

[Calum]

@ninja goes well. I need to get a dyno session arranged and see what it makes.

[NINJA]

@calum That would be very interesting to see for-sure.

[declan]

@calum sweet bike

[zegwed]

Good afternoon. Perfectly refined. A huge job that is exciting. I wanted to find out the spec sheet on the hydraulic clutch (if possible for all modifications), for what reasons was the release cylinder selected? I can't find on the Internet which one you put.

[Calum]

Hi @zegwed Spec sheet? I just made it up? Lambretta clutch spring, Ducati 996 Master/Slave cylinder and then machine up a plate to hold it together.

Something like this: 222522806529

It works really well, especially as I'm running tough springs etc.

[zegwed]

I thought so from ducati))))) did you make a retaining plate? And tell me more clutch handles and brakes of which company? I'll try to implement it))))

[Calum]

^^^Ducati Master & Slave cylinders.

Yes I machined up the plate on the lathe.

334637519334