I had a hard starting 9.9 but not anymore, I got tired of the electric choke working crappy. I'am a machinest and machined up a manual choke and fitted it to the air horn. I tested and what a difference that made with the first turn of the key she fired right off. I going to start making these for retrofit on the 9.9's that have electric choke. I believe from 94-2005 yamaha was still using this carb setup. I think the main problem with the electric choke is the passage for fuel enrichment may be so small*thats its*hard to get really clean. I hate engineers that try to out smart the industry with a solenoid thats hard to adjust and even harder to keep clean. I have seen a lot of post on this issue and hope to market this in the coming weeks. I will have to machine your airhorn and send it back then you will just have to drill a small hole for the rod to go thru. In the morning you just push the choke on then pull to about half way a wait for the motor to warm up. If you are interested in this fix contact me scott_alliedscrewmachine@comcast.net. I have seen guys saying the would buy* new carb but the problem most likely will return later. The only way to fix the problem forever is to out fit it with a real choke.
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Oh some shops can fix the problem but it will return and you will pay again to fix it. The way i have it you eliminate the electric choke by unplugging it. If you try to run it with the electric choke hooked up it won't run very good at all. I just looking to see right now if their is interest in the fix if not i got mine fixed at least.
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Oh some shops can fix the problem but it will return and you will pay again to fix it. The way i have it you eliminate the electric choke by unplugging it. If you try to run it with the electric choke hooked up it won't run very good at all. I just looking to see right now if their is interest in the fix if not i got mine fixed at least.
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