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Discussion Starter · #1 ·
Hi All,
I almost finished my project. I cut, welded, cleaned, painted, fixed and replaced some parts.

electornics: munit, raySan inignition, 12Vcoils.
Exhaust is in line to make it right.

issues:
I have some problems with run right cylinder. Ingnition timing and spark is ok, spark plugs ok, comperesion ok, carbs cleaned and replace all what was needed.
Please see a move what’s happening, also when I run faster there right cylinder seems to work.


Only what I think that maybe something is wrong with carbs because from the left one after bike is off the gas is leaking - always from drain pipe. The screw is no issue here. The same situation is when I have filter on.

Problem 2: the original radiator started leaking. Can’t find new one. Somebody can recommend good replacement?

thanks in advance.

201886


201885
 

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OK, that rules out a low speed pickup.

The fuel leak is likely crap caught in the float needle. Shut down the petcock and drain the carb to get the needle to drop from the seat. Open and close the petcock a few times and see if that will flush it out.

The other possibility is an incorrect float level.

Carbwise about the only thing that will prevent running at low speed is a blocked idle circuit and low jet. Try removing the balance port screw from the intake runner and squirting in a little fuel to see if the cylinder comes to life.
 

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Discussion Starter · #5 ·
Situation update:

The right carb got air leak
202599

I changed for new one and it’s ok now, the right cylinder starts but still is not working as should. Runs but have something like misfire - On the move you can hear specific shot in carb, used to I had something like this in old bike where the spark was too late.


I checked module timing and the spark for left cylinder is perfect for the right a little too soon, but cant do better to do not make the left late. Do you know how I can adjust it?

Somebody can advise which jumper for my bike should I have on in the ray San module? I have 12V coils on cx500D FROM 81’

Brand new custom brake line are done as well, easy and efficient!
202602



The leak from left carb is located, I’ve changed screw but didn’t help, the leak is because the hole is too big inside and screw can’t seal it. Any idea what can do?
 

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