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Heavy Twins

Description

A technical forum for Model 7 to Mercury

K2FC points access 650 SS

Forums

After struggling to set the timing I realised it was too far advanced due to the points gap being too big. However adjusting points with the primary case blocking access and properly tightening up could be a lot easier with a bolt instead of a screw to fix the ponts . Is this something  others have done ? Is there a Lucas part ? any idea what thread , Its the late type points arrangement.

650ss, Slimline Frame, Rear Wheel Centreing, Spacers, Brake Drum / Sprocket, Brake Plate

Forums

Hi all

Am returning to a job I tried to "bottom" years ago, to try to sort the rear wheel on the 650SS, year 1966.

The spurious spacers, which sent the wheel to the right (looking from the back) are removed and,dealer supplied, spacers fitted. This has pushed the wheel to the left. 

The new brake shoes were oversize and took a LOT of reducing (see forum topic 2017 from other annoyed owners!).

Stanchions

Forums

About to make a start on renovating my 1960 Model 99 deluxe. The stanchions are covered in rust which may polish off, need to wait to see if there are any surprises on strip down.

The question is: would it be better to have the original stanchions ground and hard chromed or buy replacement stanchions, which I am reluctant to do as on other marques I have had more movement on replacement fork parts and swinging arms than the originals parts.

Rear Chain Adjustmnt

Forums

Following work on the rear end I need to adjust my rear chain. I thought I could measure the length of each wheel adjuster but can I rely on this for accuracy?

If I measure and adjust the length of each wheel adjuster and push the wheel up against the adjusters I assumed that would give me the correct alignment and then would just need to move each wheel adjuster to achieve chain tension. But then when I do this and check the clearance between the wheel rim and the swing arm I find there is a large difference in the clearance.

ATLAS Alternator rotor/stator/charging problem

Forums

The rotor on my Atlas has decided to give up the ghost by the looks of it. Pity I can't post a video on here which shows exactly what's occurring so I'll have to explain in words and a few pics. In essence, the rotor has about 5mm play when rocking it back and forth on the shaft. It looks like the central metal part that slides onto the shaft/woodruff key is coming away from the larger magnet part. That play and slight wobbling on the shaft has obviously caused it to connect with the stator, so the stator is a goner too.

RGM Anti wet sump valve and oil change

Forums

I  have an anti wet sump valve courtesy of RGM on my Atlas.

I've just emptied the oil tank and sump in lieu of an oil change and realised the pump will be dry unless I prime it before starting the engine. Obviously, with the valve in place no oil will gravitate down into the pump when I fill the tank up. I suppose I'll have to remove the valve again and pour engine oil into the oil union pipe, or is there another way?

TLS adjustment

Forums

Been doing a few tweaks to the front end of the ol' Atlas and noticed the new shoes I fitted a few months back on the John Tickle TLS front brake are wearing slightly irregularly (see pics) The top side seems ok but the lower side isn't.

It actually still works well as it is and I thought I'd got it right last time I adjusted it, but obviously not.

Get it spot on and I reckon a few stoppies will be in order!

Atlas charging check

Forums

How do I check if the battery is getting charged by the genny?

The battery appears to lose charge over a period of a couple of weeks if not used regularly and the lights have never been much good for night riding. This bike doesn't get used a lot due to the weather so it sits in the garage for a few weeks at a time. I fitted a new stator 6 months ago.

 


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