What did you do to or for or with your Laverda today?

helicopterjim said:
When I raced my MHR I wheelied it on every start ...... but rarely did it even get to be more than a 6 inch high wheelie. I only raced amateur but I could usually gain 5 or 6 positions off the start with the Ducati ........ unless I hit someone. That happened a few times.

Only time I have ever done a wheelie on a Laverda was at about 70 mph on my SFC. Crested a hill at full throttle in probably 3rd gear. When the bike became rather light the rear wheel spun up to almost 8,000 rpm's. When the weight returned the bike stood up in maybe a 45 degree wheelie for about 3 seconds ...... I was surprised and didn't back off immediately. I think the fellow beside me on a CBX was more surprised. Last thing he expected was a standup wheelie from a 750 Laverda.

Jim
Click to expand...
Laverda 750 wheel-standing downhill in 3rd gear!
 
helicopterjim said:
When I raced my MHR I wheelied it on every start ...... but rarely did it even get to be more than a 6 inch high wheelie. I only raced amateur but I could usually gain 5 or 6 positions off the start with the Ducati ........ unless I hit someone. That happened a few times

Only time I have ever done a wheelie on a Laverda was at about 70 mph on my SFC. Crested a hill at full throttle in probably 3rd gear. When the bike became rather light the rear wheel spun up to almost 8,000 rpm's. When the weight returned the bike stood up in maybe a 45 degree wheelie for about 3 seconds ...... I was surprised and didn't back off immediately. I think the fellow beside me on a CBX was more surprised. Last thing he expected was a standup wheelie from a 750 Laverda.

Jim
Click to expand...

Is that you Ron?  :LOL: :LOL:

 
Second Gear with a 70 Laverda SFO at 7500 Rpm+ equals approx 90 Mph and will shoot down an 80's Kawasaki 1100 LTD. Equal in the quarter and blast by them in corners ;o)

Top speed with my 70 SF0 in 5th could be over 120 Mph - Down any straight. Quick Ride other then being rather Top Heavy and you dared to use you Body Weight to handle her. Definitely my favorite ride of all time - Sure there's Faster Rides today but Second Gear of that SFO was incredible - although she was determined to kill you.
 
FO Chrisk - Sorry you don't know how to tune a Breganzie 750 SF !

Tuned properly will beat a 71 Ducati 750S or a  80's Kawasaki 1100 LTD.
 
90MPH!! in 2nd, Ron ... my SF1 would JUST hit 100mph on the speedo if I left it in 3rd for too long. Sorry, but CK is on the money.

As for hitting the wrong gear coming out of a corner and doing an unintended wheelie - if you're in 2nd and powered up and ready to change into 3rd, and you accidentally go to 2nd, you lock the rear wheel, the engine screams and complains and you curse yourself for stuffing up. If you go the other way, going into a corner for eg in 3rd and hit 4th instead of 2nd - it's just dudsville and you lose all your engine braking.

Only ever did a start wheelie a few times on my SF, once was after street races in Bunbury when I had a 42T rear sprocket on, taking off hard from lights where there's a rise in the road (like crossing an intersection up a hill), and the odd loft when going over sharp crests at full throttle at just the right revs ... those gentle ones at high speed feel really nice!
 
Chrisk: And I'm using the original Dellorto VHB 32 open mouth carbs - Main Jetting crucial depending the Exhaust System.

Granted my Pistons where 9.8:1 Mondel Cast from the factory.

The Engine could have done with lighter valves - Say from Manley Ultra Lights with matching Valve springs. To hit 8000 rpm on every shift.

7500 rpm was good enough with them Stock Cast heavy Valves.
 
Laverda SF said:
Chrisk: And I'm using the original Dellorto VHB 32 open mouth carbs - Main Jetting crucial depending the Exhaust System.

Granted my Pistons where 9.8:1 from the factory.
Click to expand...

So you buretted your combustion chambers and did the calculation correctly to get that figure, Ron. My SF1 was rated as 9.2:1 or maybe 9.5:1 but a proper measurement gave about 8.5:1. All irrelevant anyway, because no amount of engine tuning, or hotting up can change the static ratio between engine revs and sped. I would hazard a rough guess that 90mph in 2nd gear would be about 9,500RPM. From memory mine redlined in 2nd (8,000) at around 65 or 70mph.

I must be bored - getting into doubter's arguments with you Ron!  :-*
 
helicopterjim said:
Crested a hill at full throttle in probably 3rd gear. When the bike became rather light the rear wheel spun up to almost 8,000 rpm's.
Click to expand...

Hmm, let's see. Rear wheel spinning at 8000 rpm. In third gear, the motor would be doing about 47000 rpm.
If it gets traction, road speed would be 950 kph

That's way more impressive than Ron's bike.
 
Dellortoman said:
Hmm, let's see. Rear wheel spinning at 8000 rpm. In third gear, the motor would be doing about 47000 rpm.
If it gets traction, road speed would be 950 kph

That's way more impressive than Ron's bike.
Click to expand...

I think that was a typo; Perhaps Jim meant, the rear wheel spun up, and the tacho went to 8,000RPM
 
Dellortoman said:
Yes, I know. But I couldn't resist.  :D
I'm sure Jim won't take my pedantic musings personally.
Click to expand...

Now you understand why the guy on the CBX was so surprised!

I reread my post and wondered if someone would pick up on that ....... thank you for doing the math. I was going to try and dig out my handbook and get the numbers.

Jim
 
Piranha Brother 2 said:
yes, nice polishing work - what's your secret?
Click to expand...

Depends on the part, forks, engine covers etc, fine wet and dry followed by course brown compound on the rough wheel and then green on the soft wheel and finish by hand.
Stainless parts used different compounds and I didn't resort to wet and dry.
 

Attachments

  • Polisher.JPG
    Polisher.JPG
    151.3 KB · Views: 278
Nice! Thanks for the info. I've got the wheels and the compounds, just rsist the urge to get black soot all over my face when I have so many other structural jobs to get out of the way on the spesh.

Have made a not got the wheels and compounds for when i do get around to it. If it wasn't for potential lockdowns, I'd probably just pay someone to do it all!
 
You must log in or register to reply here.
Back
Top