"Tremendous performance..." - I agree. The nearly 2kg in weight taken off the crankshaft on Asbo 39 certainly makes it fly & the braking is good despite it still being fitted with 6" brakes front & rear. Its brilliant at fooling people (other bikes, motorists etc) & catching them out- the gobsmacked expressions as the throttle is opened & it roars off into the distance: priceless!
Great video, well put across for the less technically experienced. Not many people who do this for a living would be willing to share the information let alone take time to put it up on YT, hats off to you.
Watchmaking both in rebuilding and tuning the engine. Much lighter by turning. Low weight within the scope of revolutions. Happy the owner after this machine has passed the Performance Classics.
Paul. A very interesting discussion of lightening, which I have done on my 1996 535cc. You mention the balance factor as usual. I battled to find the correct value and eventually chose 63% as mentioned by Egli. Seems to go OK and revs well to over 7000rpm. Cheers, ChrisD
I can remember seeing my crankshaft from my old t140e done by an old Friend Phil Hartshorn at fork n wheels many years ago the crankshaft looked like a tea bag with a 80% balance for top end performance, boy was it smooth well up to 115mph indicated and with some throttle spare anyway that video was brilliant, any doubters well go and see your local priest for a confession 😀
I suggested to MR. H. that he might like to get some cranks made like this for his tuning parts, but he didn't take the idea up. Missed a big trick there, if you ask me!
Hi Paul . I noticed you mentioned the piston failed . It’s something I have heard before. My piston is on about 39000 miles and the engine still running great ( has had bottom end work ) . Should I change the piston or leave it?
I can only assume that the factory [in India] have never been interested in performance and from what I have read and seen in videos, they are much more interested in 'Thump' than anything else. That said, it would cost no more to make the cranks lighter and save metal and therefore money!
I have actually done this, but it requires a lot of drilling to get the balance factor right and for a 500, the conrod has to be swapped, as they have a wider small end eye than the 350. It works well enough other than that, though.
@@paulhenshaw4514 thanks for replying . I am building a fury 500 with modified AvL crank to fit carllio rod and needle roller cage . After watching your video I am wondering how good a lighter crank would be for my build .
@@stonelessrock The all up weight of a standard Indian Bullet crank is about 10.5 kgs and I think the AVL crank may be a bit lighter. My lightened cranks usually end up around 9 kgs, if that helps.
@@paulhenshaw4514 thanks again for the info . The Avl 500 crank is as heavy as the std 500 cranks. The build shall run 1. Furry bighead 2. Crank with carllio rod and roller big end 3. Alloy barrel with Ross racing forged piston. 4. Upgraded oil pumps 5. Rejetted 34mm mikuni flat side carb 6. 5 speed gearbox with a modified clutch from yamaha rd350. 7. Electronic igniton (AVL engine setup driect at the crank)
They are adequate, non have broken to date and if a customer wishes to spend more money on more expensive options, they are free to do so and I will fit what they choose. A number of my Asbo engines run forged steel conrods, as per their owners wishes.
@@paulhenshaw4514 When you're in the market for a new camera, I have had great results from the budget Campark 4k action cam. It cost me less than £40 and has an external mic. The basic home brew set up you use at the moment is ok, but the automatic volume limiter when you're recording the bikes being ridden, keeps making a banging noise like somethings not right with the engines, even though we know they're spot on most of the time. 👍
