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question about jetting

722 Views 7 Replies 6 Participants Last post by  Ninjame
Hi everyone! Well I am back with another issue with the 89 zx-10. Got it running with help from the dealer. Here's the deal, after pulling the plugs and checking they are very carboned up. The mechanic says that the jetting was not replaced, but he recommended maybe readjusting the jets to run leaner. Now, I have a full Muzzy header system on the bike. Would it be best to go with a jet kit or try and adjust stock jets? I have been reading about something called the "Flow Commander" and it sounds like it might be something worth trying. Anyhow I am at wits end with the beast as this last time I rode it I got at least 300-400 miles before the plugs fouled out and it would only run on 2-3 cyclinders. Can anyone offer any advice? Would be greatly appreciated. Thanks!
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Thanks for all the replies. Well I pulled the carbs after trying to start it on a cold day--40 degrees or so. I drained the carbs and have them in the house. The bike just turned 27, 000 miles and does not smoke like when burning oil. The valves appeared to be dry from oil just carboned. I do have an ignition advancer if that would have any affect. I will start with the jetting and see what I have and go from there. I was going to check the coils for proper output. Just getting frustrated with the bike. It's in darn good shape and is a blast to ride when she runs right. Will post as I check things and see what happens. Again thanks for the advice!!!!!!!!!!!!

How many miles did you have on your zx-11 when you did the valve stem seals?
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