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stan wellback

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Posts posted by stan wellback
 
 
  1. changing primary ratios from 2.2 to 1 up to almost 2.9 to 1 would make starting VERY hard for the average leg. I also think it would be the clutch that suffers more than the gearbox. what is the number of engine

    revolutions to one wheel revolution in first gear? on my pre-unit singles I get as close to 27/1 as possible. it is always a compromise, going too small on the gearbox sprocket can wear out the swinging arm as well

    as the chain.

    • Like 1
  2. The OWLS MOTOR CLUB running an extra trial to fill a vacant date this sunday. Its in weald village,just south  of Sevenoaks,kent. 

    Quite a low entry so far, so we could take some day entries if you are looking for a ride this weekend in the southeast. ACU permit 

    so you will need an ACU licence.

    get back to me for more info!

  3. when refitting the flywheel, be prepared to push the points open with a screwdriver or similar so as to not damage the heel of the points. points get ruined by the f/w centre

    being forced past the moving arm of the points.

    • Like 1
  4. On 8/6/2017 at 4:53 PM, husky2 said:

    Rebuilding a Mar and need to fit the nylon bushes. Unfortunately these were not in the box of bits. Does anyone no where to get these (not interested in the 70 dollar ones). Or alternative solution or even dimensions so I get them machined up.

    any help welcome.

    thanks

    look up tophat bushes nylon bushing etc on ebuy. lots of variants. measure your frame hole and brake pedal for sizes.

  5. 12 hours ago, shakennstirred said:

    Ordered cable for my Beamish Suzuki. 

    The front brake cable is about 6in to long and all the adjustment just about already used up. 

    I gave them the measurements of my old cable and their new one and they said, theirs is correct. 

    Won't be buying direct from them anymore. 

    They work from forty year old records. Does your bike still have the high and wide handlebars they used in the 1970s, and still have the original nippon levers?? Is the front wheel the right way around?

     

  6. 22 hours ago, biffco said:

    Hi Stan, how do I check this ? Can I remove the right hand cover and pull the rod out ? Can I then retrieve the ball if it's still there ? Maybe with a magnet ?

    if it's behind the seal on the output shaft how do I check for this ?

     

    cheers

    james 

    Pull RH cover and pull out push rod, The shaft it is in should have a seal in the end,remove it and see if some one dropped the ball in the gap behind the seal.

    remove the plate on the clutch cover and remove the adjuster and then push the other half of the rod right through to see if the ball is in the middle. if not, find a ball  same as rod diameter . (cycle shop?)

  7. 14 hours ago, pmk said:

    The link I posted does have your number on it.  Shows it as a 76 350.  Not sure why it is green and not red as the list photo shows.

    Because the paint on the tank has no bearing on the capacity of the engine. Same with the frame number. The engine number would be more useful.

  8. The lever at the motor end is much too far in . I suspect the ball bearing that sits between the pushrod halves is missing. It might be sitting behind the little seal in the out put shaft.

    • Like 1
  9. Loosen the yolks and compress a few times. re-tighten without twisting.Infact loosen everything,wheel,mudguard etc.

    • Like 1
  10. 19 hours ago, pmk said:

    The photo shows how the locwire was used to single strand the 5 safeties. 

    The studs are welded into the inner clutch basket, so while not normally positioned in the way I did the wire, even though the wire appears to pull to loosen, the studs will not rotate.  The wire is simply ensuring the slotted nuts do not unwind.  The wire laid down best as shown for my clutch.  Depending upon how the stud holes are in a different basket, it may lay better in a pull towards CW direction.

    Ensure you do not pull the wire fully tight, the cups the springs are inserted into will raise and fall as the clutch is used.  If the wire is drawn tight, it could break.

    IMG_4130 - Copy.JPG

    damn, thats ugly!!

  11. when I bought my first one brand new in 1974 it had individual split pins, not wire.

    I don't bother with anything, not had one come loose, but bound to get replies saying different now.

  12. 23 hours ago, stefan_s said:

    Hi!

    The needle in the throttle seems to loose to me, but maybe it should be like this?

    The needle play sideways is around 2 mm in the throttle seat, up and down seems ok but the sideway movement looks to much, I never seen such much play on any other needle/throttle combination before.

    To me it looks like the hole in the throttle is to big, maybe someone previous owner put in wrong needle?

    Should it be like this or is something wrong here?

    Any help appreciated:)

    Edit: It is the original Amal carb.

    Edit 2: Should the air filter be oil filled or is it a dry filter?

    Does not seem a problem, the clip holds the needle, not the slide.The centre hole needs to be big enough for the cable, with its nipple, to pass through. If the carb is worn out, that is a different issue.

 
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