What bore is the carbs on a VTR 1000?

[buzzer]

As an aside from working on the Ducati.... I have been busy doing a job on my Harley V-Rod today...I changed the oil and filter and in doing that took the opportunity to check on the timing bolt in the engine that can come loose on some bikes, which wrecks the engine!  nice and easy job, just drain the oil and remove the alternator cover which comes off easily.  I checked the torque of the bolt before I removed it and it was tight...  However to be on the safe side I removed it and cleaned both the internal thread and the bolt, and used some high strength thread lock on there as advised by the factory...

[Pentode]

Loving the small details like the frame finishers on the Duke, excellent work all 'round Sir!

[fabiostar]

Thats one HUGE looking engine

[buzzer]

Thats one HUGE looking engine

it is! its a 1250 that was designed by Porsche for Harley... probably the best engine they have ever made, and quite powerful at 125 BHP... but the Harley traditionalists didn't like it


None Ducati this time, but with lockdown still in place I helped a mate out who needed some brake calliper pistons for a Norton Commando he is rebuilding...

I made two out of stainless steel for him as the originals were pitted quite badly... took a while to grind a tool to the correct angles and get the speed of the lathe right to get a nice finish, but I got there in the end...

[KermitLeFrog]

This is a fantastic thread. I am SO impressed with the people who have the skills and persistence to do this sort of stuff. Not VTR related here is another similar thread on another forum.

https://www.apriliaforum.com/forums/sho ... 7624-Rs500

Mating a Suzuki RG500 and an Aprilia RS250. For the stinkwheel lovers amongst us.

[mik_str]

This is a fantastic thread. I am SO impressed with the people who have the skills and persistence to do this sort of stuff. Not VTR related here is another similar thread on another forum.

https://www.apriliaforum.com/forums/sho ... 7624-Rs500

Mating a Suzuki RG500 and an Aprilia RS250. For the stinkwheel lovers amongst us.

thanks for that; incredible project!!!!

P.S. FWIW, here is a Canadian company that has been active in doing such builds for some years now: http://www.alienracing.net/; in case anyone wants to have a look

[sirch345]

As an aside from working on the Ducati.... I have been busy doing a job on my Harley V-Rod today...I changed the oil and filter and in doing that took the opportunity to check on the timing bolt in the engine that can come loose on some bikes, which wrecks the engine!  nice and easy job, just drain the oil and remove the alternator cover which comes off easily.  I checked the torque of the bolt before I removed it and it was tight...  However to be on the safe side I removed it and cleaned both the internal thread and the bolt, and used some high strength thread lock on there as advised by the factory...

Another bike clean enough to eat your dinner off

Chris.

[sirch345]

Thats one HUGE looking engine

it is! its a 1250 that was designed by Porsche for Harley... probably the best engine they have ever made, and quite powerful at 125 BHP... but the Harley traditionalists didn't like it


None Ducati this time, but with lockdown still in place I helped a mate out who needed some brake calliper pistons for a Norton Commando he is rebuilding...

I made two out of stainless steel for him as the originals were pitted quite badly... took a while to grind a tool to the correct angles and get the speed of the lathe right to get a nice finish, but I got there in the end...

Good work
I wondered how you got the smooth clean finish on the pistons. You friend should be over the moon,

Chris.

[sirch345]

This is a fantastic thread. I am SO impressed with the people who have the skills and persistence to do this sort of stuff. Not VTR related here is another similar thread on another forum.

https://www.apriliaforum.com/forums/sho ... 7624-Rs500

Mating a Suzuki RG500 and an Aprilia RS250. For the stinkwheel lovers amongst us.

Thanks Kermit for posting that link, what a great looking bike

P.S. FWIW, here is a Canadian company that has been active in doing such builds for some years now: http://www.alienracing.net/; in case anyone wants to have a look

Thanks Micky for that link as well

Chris.

[Pete.L]

This is a fantastic thread. I am SO impressed with the people who have the skills and persistence to do this sort of stuff. Not VTR related here is another similar thread on another forum.

https://www.apriliaforum.com/forums/sho ... 7624-Rs500

Mating a Suzuki RG500 and an Aprilia RS250. For the stinkwheel lovers amongst us.

That is rather amazing too. Has he ever done a write up on after the tune and how it rides or is it just a show piece?

Pete.l

[KermitLeFrog]

This is a fantastic thread. I am SO impressed with the people who have the skills and persistence to do this sort of stuff. Not VTR related here is another similar thread on another forum.

https://www.apriliaforum.com/forums/sho ... 7624-Rs500

Mating a Suzuki RG500 and an Aprilia RS250. For the stinkwheel lovers amongst us.

That is rather amazing too. Has he ever done a write up on after the tune and how it rides or is it just a show piece?

Pete.l

The original build thread is here https://www.apriliaforum.com/forums/sho ... S500-Build

But it has no photos. Bike running here:

[mik_str]

This is a fantastic thread. I am SO impressed with the people who have the skills and persistence to do this sort of stuff. Not VTR related here is another similar thread on another forum.

https://www.apriliaforum.com/forums/sho ... 7624-Rs500

Mating a Suzuki RG500 and an Aprilia RS250. For the stinkwheel lovers amongst us.

That is rather amazing too. Has he ever done a write up on after the tune and how it rides or is it just a show piece?

Pete.l

The original build thread is here https://www.apriliaforum.com/forums/sho ... S500-Build

But it has no photos. Bike running here:

carbon fibre everywhere (icing on the cake!) Would love to know the weight and dyno stats; a definite giant-killer!!!

[Pete.L]

Thanks Ian
Gotta luv a bit of carbon and blended in with all the modern trick bits that's got to be a bit of a weapon


I've only ridden small 2 strokers, nothing bigger than an old X7, I'd love to try something like that. Especially with modern tires, frame and suspenders

[KermitLeFrog]

Thanks Ian
Gotta luv a bit of carbon and blended in with all the modern trick bits that's got to be a bit of a weapon


I've only ridden small 2 strokers, nothing bigger than an old X7, I'd love to try something like that. Especially with modern tires, frame and suspenders

I raced a few TZ350s. Started on a twin shock model and finished with a monoshock F model. Using slicks in Oz and treaded tyres in the UK. They had between 60 to 70 HP at the crank but only weighed 115kg. They made decent power between about 8 and 11.5k pulling (just) from 6k with an over-rev to 12k. There was nothing superfluous on them. No battery or electrics (push start), no air filters, dry clutch. Premix. Cooling was controlled by how many strips of duct tape you put over the rad (first thing to be chucked out was the thermostat). So much fun. Like so many bikes I wish I had kept mine, they are worth a few bob now.

[Pentode]

Thats one HUGE looking engine

it is! its a 1250 that was designed by Porsche for Harley... probably the best engine they have ever made, and quite powerful at 125 BHP... but the Harley traditionalists didn't like it


None Ducati this time, but with lockdown still in place I helped a mate out who needed some brake calliper pistons for a Norton Commando he is rebuilding...

I made two out of stainless steel for him as the originals were pitted quite badly... took a while to grind a tool to the correct angles and get the speed of the lathe right to get a nice finish, but I got there in the end...

That's a cracking finish you've got on the stainless, I always struggle with that. Nice to see a 'proper' micrometer too, none of this new fangled digital stuff!