02 viper problems can anyone help

M

mrrviper

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Nov 25, 2008
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indiana
heres what i got 02 viper reeded/jeted/piped/picked

,. idal will not return to 1800 after be on the throtle/and it stops at 4000 and wont idal down.if i hit the kill and turn it back on it idal ok/but fluxes at 4000 rpms.,.i cleaned the carbs already)


any help will be great
 
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the carbs need to to be synced, & does the sled have a rear heat exhanger? if not get one on there if you have pipes.
 
1st- Make sure your throttle cable/adjuster is all seated good in their spots, and that your throttle cable isn't adjusted too tight. Make sure your carb boots are all on real good. Did you try adjusting the idle screw way down? Does it drop down when you blip the choke? Sometimes it could be a lean condition-- Fairly common on vipers for the idle to hang up around 4000 and then come down with the blip of the choke or sometimes the throttle, and your fuel screws would need to be turned out to 2 turns from lightly seated to richen it up-- this sometimes works.
 
Millinocket Rocket said:
1st- Make sure your throttle cable/adjuster is all seated good in their spots, and that your throttle cable isn't adjusted too tight. Make sure your carb boots are all on real good. Did you try adjusting the idle screw way down? Does it drop down when you blip the choke? Sometimes it could be a lean condition-- Fairly common on vipers for the idle to hang up around 4000 and then come down with the blip of the choke or sometimes the throttle, and your fuel screws would need to be turned out to 2 turns from lightly seated to richen it up-- this sometimes works.
Click to expand...


heres what i got.this is my first newer sled.,lol

02 viper sx 700
piped
jeted
reeded
the guy i got it from sed he jetted it(he gave me the old jets/and new jet)
he jetted it for the pipe

heres my next ? wat should i set my air/fuel setting 2 (stock says 1 7/8 turn)

yes when i hit the choke it comes down

i will try what you suggested

thank you very much
 
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What Rocket said, sounds lean on the pilot circuit. Do like he said, flip the choke and see if it helps. If it does, then its lean. See where your fuel screws are set at by turning them in until they seat. If they are already two turns out, then rule of thumb is to go up to the next size pilot jet and start over at like one turn.
Also, I know you said you already cleaned the carbs. Did this sled just get modded, or did this problem just start when pulled out of storage. Not trying to insult your carb cleaning or anything, but in my experience pilot jets HAVE to have a wire ran into them to get them clean. Spraying air or cleaner through them has never worked for me.
 
well guys i feel like a dumba##. i messed with the cables and it comes down kinda slow but it does not hang anymore.the idal sounds weird to me.maybe its the yamaha sound iam not use to.

i have not rode this sled yet but this thing seem like its fast as hell.,lol

but any way thanks 4 everything guys.,
 
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