550 F2 started!

[Nurse Julie]

The frame looks OK Roo. I've never seen those ripples along the top tube either 🤔🤔🤔

[Laverdaroo]

Its on the transmission page, should be 91207374000 but check

 Thanks mate. couldnt find it.

[Laverdaroo]

ordered, just all the bearings and the rubber and plastic for the engine and we can start the dismantle once there's abit of room.

[Bryanj]

Dont forget the "hidden" crankcase bolt and you have my number, just not this week as i am away in deepest darkest Cornwall

[Oddjob]

I'm fairly sure the ripples are not uncommon. Seem to remember seeing them when I took the paint off my frame in the late 70s, I think they are harder to see with black paint on but with grey there is light and shadow so they show up a lot more.

[Sesman]

Me too. I have them on my 77 F2, but the plot is straight and true. The light and angle of view can also exaggerate them. I gave mine a good rub down to flatten them slightly and after powder coat they are barely detectable.

I’m sure they are as a result of the manufacturing process, but i can’t explain how or why.

[Seabeowner]

Third that, pretty sure there is some on one of mine.

[Sesman]

Roo.

On bearings, rubber and plastic. Are you aware that the gasket sets don’t include the rubber ‘pontefract cakes’ in the cam/head?

Just checking as it was extremely frustrating when I got to the final assembly stage and found they’re not supplied. NJ stocks them. If your not familiar with the camshaft set up there is bit of a trick to getting the cam chain on the sprocket. It involves ensuring you have the chain resting on the cam on the correct side of the cam wheel/shaft. The manual photos give you a good clue.

[Oddjob]

A trick I found useful was putting the barrels on, then putting the camchain tensioner in place, making sure it's located in the slot in the bottom crankcase. Now undo the locking nut on the tensioner and push the blade back as far as it will go by hand, nip up the locking nut and when you come to fit the chain onto the sprocket you'll find it a lot easier.

[Bryanj]

Itl be because the top is not a "tube" but two stampings welded together and stamping causes stretching and shrinking of the metal

[Oddjob]

Roo, need a favour. Can you measure what size the top mount is on the rear suspension. Not the thread but the section where the mount sits, I need to order some rubber mounts for my dampers but don't know what size they are and the frame not available to measure ATM.

[Laverdaroo]

just decorating Ken but I'll do it tonight for you mate.  Bear with........

[Laverdaroo]

Right, house decorated and on the market..........and breath!


House done,,,,,,,tick

Been fishing,,,,,,,,tick

Blanked like a dog,,,,,,,,,,tick!


Shed o'clock!

Still waiting on a bit of room but got the all clear on the frame, it's a gnats biased to the right by .5mm and I reckon I can live with that. Happy days

Amazing that nobody has really noticed these ripples until 'numb nuts' here chucks a bit of grey acid etch at the frame. I think you're right Ken Cool its a standard thing, I had an idea it was a manufacture process thing from the stamping but glad it's all cool and straight. Cost me 4 bottles 'of Dog' for the check......winning!

Thanks for all the advice on the hidden bits and bobs. I've got the Pucks Phil but didnt know about the other  points about hidden bolts etc. Ive not done one of these before so looking forward to the pondering sessions if I'm honest......That is when I get my shed back and can get at stuff! I'm no where near re-assembly, that would involve dissasembly and currently all the crap from the house that, apparently doesn't look good to perspective buyers has to go in the shed.
I mean, what's wrong with a  lifesize Valentino Rossi standing next to an M1 R1?? I ask yer, some folk!  It looked ace under the stairs and now its on my bench in the sodding shed!

Onwards

[Laverdaroo]

Managed a bit more work on the carbs today in between doging hopuse jobs for 'The Long Haired General' and currently bobbing them together in the bit of space Ive ,anaged to climb nto in the shed to have a quite fettle with Planet Rock to sooth the soul for a few hours.

Whilst fiddling my thoughts wandered to brakes and teh twin disc set up I want to do on the front. Ive managed to get a complete set up of twin discs, calipers, new stainless pistons and honda seals so I have all I need for the bottom until I start on the hub modifications (as read on here by Bryan and the rest of the super knowledgable) in the various chats and posts. That being said, I think I might be asking a few questions come the time. However, I havent really thought of what master cylinder I'm going to run on the renthal bars i have for the final build. Theyre 7/8" medium rise street bars in a matt black cerecote finish and look superb. I'd like a reasonably priced master to go with t but getting a little confused on the ratio's required for the build up. Ive read 17mm cylinders and plungers, 19mm and I think 16 too. I realise the extra force required for teh extra caliper but get a little 'hooped' when it comes to the ratios; smaller bore more pressure meaning smaller plunger or larger piston to fill the larger sytem at the same pressure.

Can anyone help out on this?
Phil, (SESMAN) di you o a twin set up, up front? What di you come to as a good solution?


Anyway back into it, just thought I'd type ths now before I climb back into my hollow to continue in the shed.

Answers on a post card please....

[Oddjob]

I'm using a CB1300 front master cylinder on mine Roo, it has a mirror mount if that's important. A lot don't. It also has a front brake light switch on it in case you want to ditch the lower yoke version. I got the braided brake lines from HEL.

I'm lucky as I own a CB1300 and just replaced the clutch and brake master cylinders for radial ones so the old ones were spare. The clutch MC will also be used if I can finish the hydraulic clutch conversion I'm planning.

https://www.ebay.co.uk/itm/203648282305?hash=item2f6a622ec1:g:GOcAAOSw1dhhZY0w

I have a spare original cap for the reservoir and a spare lever if your getting that.