Kawi2strokes.com Forum

Great you found it! I bet that was the problem.....

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Twist the throttle, tilt the horizon, and have a great time. What triples are all about...........

Been away from the board for a while.
Hope you have found the source of problem.
Were the needle jets removed, inspected & cleaned?
Were the carbs soaked in carb cleaner or just sprayed?

The difference in enrichener tubes is normal... don't alter them.

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Answers are here: http://kawatriple.com/

Yes, I did all the good things that you should do with carbs - completely disassembled and soaked, probed, blasted with air. The big thing that I missed was the air jet. I never saw it until yesterday and it was blocked. Thus, no pilot circuit function.

Thanks again for all the good advice and encouragement. I will put the carbs back on the bike today before the garage gets up to 100 degrees.

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Rotortech
Indianapolis
1974 S3

Glad to see you're getting her together. The carbs can be tricky. I seem to find the hole in the pilot circuit facing the intake seems to clog up the easiest.

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74 H2B with reeds and 34mm carbs
75 S3A Ram Air with reeds and 30mm carbs
73 S2A (wife's bike)
71 Yammi RT1B
83 HD Sportster
03 Yammi R1
06 Kaw 750 Vulcan (wife’s bike)
12 Yammi vstar 250 (wife’s bike)

I rode it today. It did better but the pilot circuit is still not quite right. That's OK. I can remove the carbs in my sleep now. There is some tiny lump of dirt hiding out in there and I will find it. All three are affected but the RH cylinder is the worst.

Here is what my S3 looked like right before I took it off the build stand. Since then I added gas cap, mirrors, and chain guard. Maybe a couple of other little things - I forgot.

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Rotortech
Indianapolis
1974 S3

I really like the paint, and the lack of decals. Is that the kind of paint job that you drag plastic wrap through?

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If it surges, that's normal, upshift.

Yes, I think the paint is done with plastic wrap. The guy I bought it from was a custom paint guy. Not a mechanic.

Over the winter I plan on getting new pipes, paint and seat upholstery. Then it will be almost entirely finished.

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Rotortech
Indianapolis
1974 S3

Gm Rotortech, I'm a little late on this thread,I was just wondering if you have a good strong battery in your bike ? The smaller triples don't run good with a weak battery. My bike is a kh 250 with a 350 topend with 400 carbs and chambers.If i don't have a good fully charged battery the low end on my bike is awful.Just a thought.

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If it surges, that's normal, upshift.

Harry,

Thanks for bringing that up. I am blessed with a strong battery and a good charging system on this bike. EDIT - FOUND PROBLEM IN CHARGING SYSTEM. DETAILS LATER IN THIS THREAD. I think the spark is consistent. It starts on first or second kick and idles nicely. As soon as I apply some throttle it starts cutting out and stumbling all over itself. All symptoms point to the pilot system and I am dipping the carbs again today.

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Rotortech
Indianapolis
1974 S3