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  1. M

    1978 Mercury 70hp Worth Messing With?

    yep . One of the things that makes a good mechanic ( or any repair man ) is the ability to diagnose the problem and one advantage a multicylinder motor has over a single banger is the immediate proximity and availability of substitute parts for diagnostic purposes ....by all means swap things...
  2. M

    1978 Mercury 70hp Worth Messing With?

    Yes but the spark would be in the wrong place but if you then get spark on #2 coil it would indicate that the cdi was crook
  3. M

    Random

    crazy really because its obviously the same guy , and I would guess that 99.9% of people who recognize it will know it from a Mad comic and not from earlier things :D
  4. M

    Random

    :LOL::LOL: oooh well done you BUT did you suss the legal crap before or after you used the 1st Alfred E Neuman image ( I see you changed it ) was the 1st one not covered by the "in the public domain " clause ?:D:D
  5. M

    stupid question - trailer lights

    yeah I get that , and the time frame . There is a family hardware shop in Invercargill ....been there for decades , I know 3 generations of manager , Fastest Indian shop , called E Hayes and Son and they stock an unbelievable pile of stuff . I have often driven the 60kms to get something...
  6. M

    stupid question - trailer lights

    I was looking for a 32mm ring spanner , 38bucks on ali........89 at the local hardware ....similar quality AND the local guy moaned at me for not supporting him .........9ah 18v Makita battery local $279 .........I can get 2 genuine Makita 9ah 18v batteries off aliexpress for $105 ( I did so a...
  7. M

    Random

    yep DC comics
  8. M

    safety chain question

    yeah Im not big on joining safety chains ........for the length involved Id go new.
  9. M

    No tach,no charging

    there should be 3 yellow wires .... these are the 3 phases from the alt and should go to the reg / rect you replaced . resistance should be between 0.1 ohm and 1 ohm between any two yellows ( check them all ) and open circuit between any yellow to ground .
  10. M

    Random

    far out .... long way :D
  11. M

    safety chain question

    yeah , we get them here too .... same guys that have their skis or surf board bolted to their roof rack ( they swap them over depending on the season ). A guy up the road has a Hilux that has all the crap on it and lifted so high its damn near undrivable ....and the noise off the tires on...
  12. M

    safety chain question

    no they're not 😉 , peeps that put them on their vehicles think they are but they arn't:D:D
  13. M

    No tach,no charging

    I would say at a guess that you have also got a fried alternator , For the reg to have a hole burnt in it something has got very hot , usually a short in the reg and that will cause high current flow in the alt windings and fry them too . you need to disconnect the 3 wires from the alt and...
  14. M

    1978 Mercury 70hp Worth Messing With?

    on motorbike the concentric ally rings you mention are called labyrinth seals , and they dont actually contact the crankshaft , Im not sure of the clearance but it aint much .:)
  15. M

    1978 Mercury 70hp Worth Messing With?

    yaah I get it now :):)
  16. M

    1978 Mercury 70hp Worth Messing With?

    With reeds on both sides or just one ?
  17. M

    1978 Mercury 70hp Worth Messing With?

    the design of the plenum could have a bearing on the 120 deg intake pulses , being that one carb would be drawn on evenly its the physical location of two carbs in relation to the reeds that becomes an issue , however I suspect the Mercury probly didnt spend a lot of time or money worrying...
  18. M

    1978 Mercury 70hp Worth Messing With?

    Thanks jimmbo . Guess it what one is used to seeing , all the motorbikes I recall had one carb per pot , and then I saw some 2 strokes feeding multiple cylinders from a plenum with one carb ( I guess a bit like a V8 with a 2 or 4 barrel carb on a distribution manifold ) ....so why not 2...
  19. M

    Random

    Ha ha I bet Joe has to " substantiate his identity " after posting that avatar then 😂😂
  20. M

    1978 Mercury 70hp Worth Messing With?

    Yeah ,Im thinkin the 2 carbs for 3 cylinders is a bit of a patch job using what was laying around at the time ....and probly same thing with the small-ish lower unit .🙂
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