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Old 05-11-2009, 01:31 AM   #1
Optimus Prime
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Hesitation .....

One last question for the night. When first takin off from the line, light, etc.... My bike tends to have a quite bit of hesitation. It sputters, sputters, and sputters some more then it takes off. It does this through the first two gears. What could it b. A fowled plug. Bad wires. Mayb just the carbs need to cleaned. Possibly rebuilt. Lmk what u think.
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Old 05-11-2009, 02:51 AM   #2
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try giving it more throttle, a lot more, just as you release the clutch in 1st. lol, it won't hesitate then. haha jk

but seriously, give the carbs a good cleaning and keep something like sea foam in the tank to keep them from gunking up so bad...and/or drain the carbs if you're gonna let it sit for a long time.


or even better yet, install a jet kit on the carbs.
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Old 05-11-2009, 09:41 AM   #3
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draing the fuel does not work! i dont know where you squids got that idea from.i tested that theory a bunch of times at work on bikes and it doesnt work.i let a carb sit for a week and the secondary jet was already clogged
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Old 05-11-2009, 10:51 AM   #4
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If it were a fuel issue, it would happen at any load, not just first and second gear. If the vehicle has been sitting try to burn it out.

I cleaned the carbs, drained the tank and added a stabilizer. I had to ride it at full throttle as it bucked me to run out everything and get all the air out of it after cleaning everything.

Progressively it got better till it was perfect.
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Old 05-11-2009, 01:39 PM   #5
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Quote:
Originally Posted by cobrakiller02 View Post
draing the fuel does not work! i dont know where you squids got that idea from.i tested that theory a bunch of times at work on bikes and it doesnt work.i let a carb sit for a week and the secondary jet was already clogged
sta-bil.
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Old 05-11-2009, 01:40 PM   #6
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u broke it!!!
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Old 05-11-2009, 01:52 PM   #7
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Old 05-11-2009, 11:39 PM   #8
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Its a 1993 gsxr 750. And yeah i probably did break it. lmao. I plan on trying any if not all suggestions. I just wanna get it fixed. Its way too much to put it in the shop. But in my past i've learned that cheap is expensive. Well thankx to all yalls help and keep it comin.
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Old 05-12-2009, 02:55 AM   #9
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try mixing some 114 octane fuel into your gas... my bike kinda likes it!
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Old 05-12-2009, 10:11 AM   #10
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sounds like that carbs are not feeding enough fuel at start once the rpms are up u have more flow in higher gears. if it was a fuel/sparkplug/wires issue it would be a consistant sputter through out the rpm band.
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Old 05-12-2009, 10:15 AM   #11
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SEA FOAM!!!! should clean it up!!! start there $5 a bottle!!!!!
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Old 05-12-2009, 12:22 PM   #12
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seafoam can help remove the initial crud, but the remaining deposits may still have blockage (but i will attest to seafoam's performance)

now there is another cleaner out on the market. it is TOTALLY FREE, but it is EXTREMELY hard to find, when going down the isle and all you see is neon bold lettered products ... this is the best cleaner i have EVER USED.. and it is usually a miracle worker. it takes a little bit of time to set up, but does it clean like nothing else... dont get me wrong, the other products work, but not as good as this! its called... ELBOW GREASE... and the is amazing.
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Old 05-13-2009, 12:46 PM   #13
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If it happends at low rpms in like second as well, it's probably your spark plugs. My R6 would sputter at take off in first, then a little in second, the higher I'd get in gears the less i'd notice it. A new set of NGK's did the trick
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Old 05-19-2009, 09:17 PM   #14
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misses are funny... you would think a spark related miss would be constant, but like fuel, engine load has alot to do... more rpm and combustion pressure makes life for a sp plug and coil harder... more combustion press= more resistance at plug... ive seen a spark plug boot leak spark to the head a couple times... does it occur under heavy load or higher rpms say pulling from 3k in 3rd or accel. at freeway speeds in 5th or 6th? check your maintenance things first... outta be on top of those anyways... alot of people have gotten back lost power by simply doin a tune up... good luck
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Old 05-19-2009, 09:21 PM   #15
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oh yeah, old timer trick for you carb'd guys... do this at your own risk- add a llil rubbing alcohol to yer gas(4 stroke only)... cruise around on that tank... gets the water out... dont go hammering on the throttle, ocane value will be changed due to the volatility of the alcohol...oh yeah check yer fuel filters too... us fi guys, add a capfull of atf once or twice a year... too much will smoke... atf is like reg motor oil, but has alot of detergents added... keeps varnish down, and lubes the fuel pump...
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Old 05-21-2009, 09:13 PM   #16
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Maybe I missed this but need more info.

1) What kind of Bike and year.
2) Have you made any changes since it last ran good until the problem turned up.
3) Has the bike sat for extended period of time 1 month plus?
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Old 05-21-2009, 09:30 PM   #17
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Go to the corner store look in the cooler for the bottle of NOS put 2 of those in the tank bwahaha
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