Hi everyone,
I am fairly new to the forum and am hoping someone can help me. I have a 1990 Suzuki Katana 750. My bike was running fine with the exception of the occassional rough idle. I decided one day to take the carbs off to clean them only to notice that the brass pipe for choke to carb one was broken. I found a local guy who said he could repair it for me. I took it to him and he replaced the pipe and used JB Weld to put it in place. The repair looked fine and I didn't think anything of it. When I replaced the carbs I went to start the bike and got nothing. Ended up draining the battery. Charged the battery and decided to suck the vacuum line to get gas into the carbs. Attempted starting and she cranked but the idle was so high it scared the crap out of me. Spoke to a few people and so far I checked the choke cable (completely released and started only to get idle at about 10,000 RPM), checked the throttle cable (completely released), Checked for vacuum leaks with WD40 and found nothing, took the carbs back out and checked for the O-Rings and seals and all look okay, checked the vacuum hose from the petcock to the carbs for breaks and it looks fine and now I am at a loss as to what the problem could be.
I recently read a forum that said this guys carbs floats were flooded and he had gas down inside the engine mixing with the oil. It suggested he drain the oil and replace it with the filter and try it. That was the next step I was considering. I looked at the oil and it does not look normal. It is kind of thin looking and yellowish. I am upset though because that was the high end racing oil at $9.99 a quart!
Please let me know if I am headed in the right direction. Thanks.
Sorry, forgot to also mention that I checked the idle adjust and screwed it all the way down so the butterflies are closed and still get the high idle.
I am fairly new to the forum and am hoping someone can help me. I have a 1990 Suzuki Katana 750. My bike was running fine with the exception of the occassional rough idle. I decided one day to take the carbs off to clean them only to notice that the brass pipe for choke to carb one was broken. I found a local guy who said he could repair it for me. I took it to him and he replaced the pipe and used JB Weld to put it in place. The repair looked fine and I didn't think anything of it. When I replaced the carbs I went to start the bike and got nothing. Ended up draining the battery. Charged the battery and decided to suck the vacuum line to get gas into the carbs. Attempted starting and she cranked but the idle was so high it scared the crap out of me. Spoke to a few people and so far I checked the choke cable (completely released and started only to get idle at about 10,000 RPM), checked the throttle cable (completely released), Checked for vacuum leaks with WD40 and found nothing, took the carbs back out and checked for the O-Rings and seals and all look okay, checked the vacuum hose from the petcock to the carbs for breaks and it looks fine and now I am at a loss as to what the problem could be.
I recently read a forum that said this guys carbs floats were flooded and he had gas down inside the engine mixing with the oil. It suggested he drain the oil and replace it with the filter and try it. That was the next step I was considering. I looked at the oil and it does not look normal. It is kind of thin looking and yellowish. I am upset though because that was the high end racing oil at $9.99 a quart!
Please let me know if I am headed in the right direction. Thanks.
Sorry, forgot to also mention that I checked the idle adjust and screwed it all the way down so the butterflies are closed and still get the high idle.
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