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Discussion Starter #1
I have an 89 zx7 H1 that I have been working on. It sat for about a year until I bought it. It had old gas in it and needed a tune up badly. I started by getting new spark plugs, changing the oil, and changing the coolant. I then cleaned the carbs spotless and cleaned out the fuel tank. I have got to a point now where the bike runs pretty good but it still isn't quite up to my standards. It idles great, if i turn the throttle slowly it will rev up fine. but if i try to really gun the throttle to go fast, it bogs down quite badly and my overall throttle response is horrible. I have the pilot screws set at 3.5 turns out. And I have the needles set at the 4th notch from the top. The bike runs better and better as it gets hotter. Am I running too rich or too lean? It's very hard to tell as the spark plugs are brand new and don't really show any signs of discoloration yet.
 

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Why do you have the needles set where they are?

That should have a LOT to do with it.
 

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OK I have an H1 and you really don't need the pilots that far out to start with. Turn them in closer to 2.25, then bring you needle clips to the third spot. Now if it runs better at wot throttle hot than cold your main jets are fine but that bog is due to the needles being to high. Now if you want a little bit more pep you could run the 38mm cvk's off an H2 model. Slightly larger and I like the way my bike runs. It's a little lean during cruise, but when it's time to go she comes alive.
 

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Discussion Starter #4
thanks very much for the advice, I was kind of at my wits end with this thing. So ur saying I'm runnin way too rich right? I will adjust pilot screws and needle clips and report back with the results. thanks again.
 

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Rich is what it sounds like.
 
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