mattylad

Ran Boysen for years.... love 'em The bike has less hit at low rpm but revs to the moon when required seems to feel like a bigger engine is installed. Fitting straight forward remove airbox, rear shock and middle exhaust, 4 bolts hold on reed cage. Replace reeds using locktight on reed screws. Service swing arm suspension bushes at same time. To solve pinking I use two base gaskets on cylinder which reduces the compression ratio but raises the ports half a millimeter so the effect is about the same. Both mods are reversible so try it and see, my opinion well worth it. I use a Keihin PWK 28 which required a slightly larger pilot jet. Small pilot jet could also be cause of pinking. Ignition as standard is totally non-tunable.

Who is/was Dennis Jones at number 33, never heard of him before.

One of the few advantages of old age is that I consider spelling and grammer as important. It is amazing how many job applications I get with elementary errors. So I agree please take the time to make the post comprehensible.

I always use 10 x 42 as best summer option. 10 x 40 for winter.

Chewey, I'm glad you didnt take my comment the wrong way. I agree retailers are the ones who really make the mark up which makes the bolt bloody expensive. It all boils down to economy of scale for the little producer.

Chewey, Seems a pretty fair mark up on a bolt and spring. Maybe you would sell more if you didnt charge so much!

Is the importer Birks?

I love old bikes..but more modern ones work so much better, (disc brakes) I would get a Mont 315 or a gas gas TXT.

Rule number 1. Never complain about a score you will get the benefit of the doubt 9 time out of 10. Rule number 2. Ride for pleasure, in your heart you won so the next victory will be all the sweeter. Rule number 3. I think the above two are enough to get by with! Remember you ride for 5 hours the poor bugger observing is stood in an uncomfortable place with no facilities for your pleasure. Lifes too short to be anything other than grateful.

Having bought 4 I say the are pretty damm good quality.

Are there any multi day trials over the Easter weekend. Prefer if it was up North. It either that or go to the mother in laws! Thanks for your help

If he does sell I would be interested.

Perhaps he heard the whisper from a horse!

Yes I'm interested! Please contact me off page

I was not aware it was a minerelli base I thought Italjet made their own. Good tip thanks.

I know it is a very long shot but does anyone have a kickstart shaft for the Italjet 6 speed trials of late 70's early 80's. or is there a way to modify one from another bike. (For those who do not know this was the major problem with this bike.... something of an Achillies heel)

I think the basic answer is NO. The ignitions are generally much lighter, the gearbox have different ratios. Not sure about cylinders though you could offer up a TY base and head gasket to confirm.

WES are all approx 1" diameter, as they make such a wide range there are clearly other solutions. Go with the basis and you will not be far wrong.

Use a straight through perforated tube of internal diameter 1 inch. This is pretty much the standard set up for all tailboxes. Go smaller for smoother power, bigger for faster reving. Use a perforated sheet with as many small holes as possible, this helps sound absorbtion.

See the fifth article down www.trial-club.com My french is pretty fluent having used it as a working language for 10 years.

Seen on a french and italian site that it's happened. No news on scorpa site..... why??? If you had just signed your number 1 rider to ride your brand new bike I would have thought it merited at least a small announcement. Maybe I should go into PR!

Any bike that Steve Saunders is riding.

For the side cover I just made sure it followed the line of the frame on left hand side. I cut an alloy plate to use as a seat with a 2mm foam top. I.e as narrow and low as possible. I have not yet got the barrel it is still at my fathers, the specs give 22bhp as a pose to 16 for TY so it will be more powerful, wether the bottom end goes only time will tell. There is a big bore kit on ebay at the moment. The clutch side cover is just cut away to leave the circular flywheel cover so that it does not trap mud.

Ok, Lowered the footrests, removed head gasket, machined half the flywheel weight off, narrowed the side cover after removing the oil tank, put on a modified tailbox with same internal design as a shirty mono, 28mm dellorto. stiffened forks by removing tight would coils by 3" or so. It certainly is a lot friskyer now only needs some Boyesens. Does any one have a code number for the late post 1975 engine. I have bought a cheap culinder off of a DT 250 i will fit this in a few weeks to see the difference. Thanks for your help.

Thanks for the info, What did you do on the porting front and head mods? I am looking for a more modern power delivery not the slow old girl of yesteryear. Where your changes required as a result of altitude we are nearer 500mm above sea level.