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400 4 Timing

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paul G:
Hi all,
Just getting the 400 4 ready for the summer, given it a service and thought I would check the timing.
It will time up statically using the buzzer method but on cylinders 2&3 it will not time up using a strobe !!
1&4 no problem 2&3 will not line up with the timing marks.
Any ideas would a defective advance and retard spring affect both.

Regards,

SteveD CB500K0:
How does it run?

I've never been entirely convinced about strobe timing...

ka-ja:
Hi,
     The timing marks should be spot on, if 1-4 are firing correct 2-3 should also be correct,if not, it only leaves either 2-3 points gap or points condition at fault, personally I usually set up 1-4 and let 2-3 follow, unless the motor runs a bit rough

Bitsa (Ralph Wright - RIP):
With a stobe there should not be any problems.considering all and sunder I have always done it this way.If 1 and 4 is spot on 2 and 3 should give or take be not far off.If you can not get 2 and 3 right the points I would bin them and change for the legit ones as i HAVE ALWAYS SAID PATTERN STUFF IS Crap.The only other reason could be and I say could be is have you recently stripped the engine down and recently did the timing wrong?One other thing I have found keep the the leads well apart as the collecter can pick up both.
Cheers
Bitsa

K2-K6:
Can you see how far away it is on 2/3 with the strobe?

Are the 2/3 points mounted on a seperate backplate or just straight on the main points plate so that you can't adjust them relative to 1/4?

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