sxr700 mid range hesitation??

Vincent said:
Generally no, they are reusable.

The Reed stop notch mod does help clean up the midrange response , but you obviously have something fare more serious then simple minor tuning issue.
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i hadn’t thought about it till now and i’m away for the weekend but is the choke cable too tight and could that cause it to run rich midrange ? or would it be thru the whole powerband? that and adjusting the throttle cable that is too tight is where i’m gonna start when i get back home


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kastner03 said:
i hadn’t thought about it till now and i’m away for the weekend but is the choke cable too tight and could that cause it to run rich midrange ? or would it be thru the whole powerband? that and adjusting the throttle cable that is too tight is where i’m gonna start when i get back home


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loosened the throttle cable some and tried to get a video
https://youtu.be/Mm7gedbsxAA

https://youtu.be/PBZmuYuORDE




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kastner03 said:
i hadn’t thought about it till now and i’m away for the weekend but is the choke cable too tight and could that cause it to run rich midrange ? or would it be thru the whole powerband? that and adjusting the throttle cable that is too tight is where i’m gonna start when i get back home


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pulled the plugs and they look light except the pto side the center piston looks like it has small clean specs on top just in the center where the plug is couldn’t get a real good pic
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kastner03 said:
loosened the throttle cable some and tried to get a video
https://youtu.be/Mm7gedbsxAA

https://youtu.be/PBZmuYuORDE




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in the videos it’s not getting stuck at certain rpms, it’s more me holding it there to show the hesitation/miss i’m at a loss i guess my knowledge isn’t what it should have been to get back into the sport. i did a compression test before i bought it and they were all within between 121 and 124psi and it seemed to run good on the guys stand so i figured it should be good to go


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Does it ever backfire? And if I where u I would pull carbs and clean and inspect what size jets are inside even if everything was running fine. Should have 45 pilots 1 1/2 turns out on fuel screw 145 pto 143.8 center 143.8 mag. 142.5 mains is safe too I believe. Also it’s a good idea to check reeds too. When cleaning your carbs make sure to clean airbox well too.
 
I wouldn’t slack on carbs either. Pull the pin for your float and take out and clean needles and seats. Also get air screws on the mouth of carb
 
Yamitriple said:
I wouldn’t slack on carbs either. Pull the pin for your float and take out and clean needles and seats. Also get air screws on the mouth of carb
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thanks, no i haven’t ever heard it backfire i guess maybe a good carb cleaning is in order


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kastner03 said:
thanks, no i haven’t ever heard it backfire i guess maybe a good carb cleaning is in order


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do carbs need synchronized if i tear them all apart and clean them ? or just clean and set air screws to spec ?


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MURDER YAMAHA said:
Don't need to sync, jut easy to do with them off the sled.
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okay, i have no idea about syncing carbs since i’ve never had to do it before

Thanks at this point it looks like it might be a summer project since it doesn’t seem to want to snow anymore [emoji849] seasons probably over with only 1 decent storm this year.... i had to have picked the worst possible year to get back into the sport


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