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Discussion Starter · #1 ·
Here is the run down, my bike has been running like shit ( pipe, filter, holes in airbox). The orignal owner said he jetted but it just doesnt run right, so i finally decided to do it myself. Here is the problem...


The kit I bought says at my elevation/mods (1000-2000 ft) I should run a 146 left and a 148 right, 3 turns on idle and stock pilots. So I install them, the ones on the bike right now I see are 144/142. After I put in the new jets its still runnning rough. I feel its better but not good yet. What it does is cruise ok but midrange it cuts out, jumps, bogs ect. So I take off the airbox lid to see what that does and it made it worse.....

So my question is.... Do I need higher jets or lower jets? Which ones would you recommend? Thanks alot guys.



Im just ready for her to run good again.
 

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Discussion Starter · #2 ·
Well I just tried 155/160 like someone recommended in another thread and it went about 20 feet down the road and stalled. Im about to give up, someone let me know a combo I should try...Please :(
 

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Discussion Starter · #3 ·
Anyone? My poor quad is in pieces right now begging to be ridden.
 

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What does your spark plug look like???????

If it's black (rich condition) take a good look at your float settings. Too much fuel in your bowls goes right into your motor and will cause what your experiencing
 

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Discussion Starter · #5 ·
Ill check out my plug, is there any write up or anything on the carbs flaots?
 

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Discussion Starter · #7 ·
Man, that float thing seems pretty hard, messing with the jets was pretty easy but that seems hard as hell.

Anyone know what jets I should be running so I can get that right and then work from there?
 

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The 146/148 setup you spec'd is dynojets, and is for an internally stock bike with a full aftermarket exhaust, aftermarket air filter and no lid on the airbox. Check dynojet's website if you don't have your jetting instructions, but the 146/148 should be fine for your bike if those are the mods you have, elevation may require you to drop one size on each main.

If your midrange is the problem it's your needles. I would imagine you're using DJ needles since you probably have the kit. Check your specs, but you'll likely need to start at the 3rd (middle clip) and work from there.
 

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Discussion Starter · #9 ·
Maddog56 said:
The 146/148 setup you spec'd is dynojets, and is for an internally stock bike with a full aftermarket exhaust, aftermarket air filter and no lid on the airbox. Check dynojet's website if you don't have your jetting instructions, but the 146/148 should be fine for your bike if those are the mods you have, elevation may require you to drop one size on each main.

If your midrange is the problem it's your needles. I would imagine you're using DJ needles since you probably have the kit. Check your specs, but you'll likely need to start at the 3rd (middle clip) and work from there.

Awesome info, I didnt even touch the needles since he said it had been jetted before and I just assumes they had been already changed out. My kit (which was purchased incomplete cuase of a shipping error) did not come with needles, so are there places out there that sell just them or do I need to buy a whole new kit?

Thanks again man, hopefully I can get somewhere with this thing.
 

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Just make sure to take it easy and have patience, tuning is an involved process. Print out the instructions for the clear tube method and jetting. Crack a beer and turn the radio on in the garage.

That's the only way I keep my head screwed on sometimes.

Beer+good music=a little extra patience :p
 

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You can run oem or gytr needles with oem mains. The dj needles can be difficult to order seperately as I've heard dj does not like to sell them alone but perhaps if you discuss your situation with them they'll be understanding. The other option is to buy them from someone who no longer needs them as opposed to spending another 80 bucks on a new kit.
 

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Discussion Starter · #12 ·
My local shop had some loose gtyr needles so i bought those and am gonna try that setup. I hope it finally fixes this sensitive beotch. :lol:
 

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Discussion Starter · #13 ·
I'm bumping this back to the top cause Im still having a problem.....

I've tried sooo many different combo's and non of them are working. Right now the bike runs great for about 10 minutes then starts to bog out again in the mid rpm range. When I look at the plug its black and burnt looking. Right now my jets are 146/144. Should i try a higher setup like 148/146 or lower like 144/142? Im close to just giving up and paying a fortune for a shop to do it for me. Any help would be awesome.
 

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Just to be clear, you're running the larger jet in the right side (handlebar throttle) of the carbs right?

As I said midrange is needles, a way too rich pilot or way too rich main can hasten the problems though.
 

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Discussion Starter · #15 ·
Maddog56 said:
Just to be clear, you're running the larger jet in the right side (handlebar throttle) of the carbs right?

As I said midrange is needles, a way too rich pilot or way too rich main can hasten the problems though.
Yes, I am running the larger jet on the throttle side. I am on the third position on the needles, should I try 1 closer to the needles point or one towards the fatter end side?
 
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