Check the build date from the decal in the right front fender, from the Polaris service bulletin #A-06-06-04 these are the carb part numbers; pre 3/7/06 build,
needle jet #04-m
jet needle #4HB42-5 (last # is the clip postion on the needle)
pilot jet 42.5
main jet 147.5 (which may be too large)

Post 3/7/06 build;
needle jet #05-m
jet needle #4HC57-3 (clip in the 3rd position)
pilot 45
main 140

Don't mix 06 and 07 parts

 

<div class="FTQUOTE"><begin quote>Originally posted by: powerslider

Check the build date from the decal in the right front fender, from the Polaris service bulletin #A-06-06-04 these are the carb part numbers; pre 3/7/06 build,

needle jet #04-m

jet needle #4HB42-5 (last # is the clip postion on the needle)

pilot jet 42.5

main jet 147.5 (which may be too large)



Post 3/7/06 build;

needle jet #05-m

jet needle #4HC57-3 (clip in the 3rd position)

pilot 45

main 140



Don't mix 06 and 07 parts</end quote></div>


Thanks. The build date is 4/28/06. I guess I'll re-verify all the parts just to make sure.

Are the service bulletins accessible on-line somewhere?

 

I got the bulletin from my dealer, I don't think they're available unless you have dealer access the their website.

The enrichener hole you show lets air bypass the closed slide/plate as well as draw fuel into the engine with the choke on, this is where the higher idle speed comes from with the choke out on a cold engine.

If your in fact rich remove the airbox lid and see if it improves at all at wot...

 

lets Start over
Was it running right before you took it into the Shop for the Warranty work ?

 

<div class="FTQUOTE"><begin quote>Originally posted by: Rickeyparker

lets Start over

Was it running right before you took it into the Shop for the Warranty work ?</end quote></div>

LOL!

Yes. It ran OK before we took it to the shop.

Now - let me tell everybody all the things I've already done & tried:

1. Runs great up to about 1/2 throttle. For the most part, any more thottle after that and it starts to bog.

2. No, doesn't matter if it's hot or cold. No it doesn't matter if I just jam it all the way to WOT or if I try to go gradually - same result. When I back off the throttle (back to about 1/2, it clears up)

3. No, nothing is fouled or plugged. I have the entire ATV dismantled, so there's no airbox. I'm just using the filter. No, the vent lines are no crimped or plugged - they are OFF.

4. Even with the filter removed and just pantyhose over the intake, it still bogs.

5. I have completely dismantled the carb (3 time now) and checked and cleaned all parts. It was already extremely clean, but WTF.

6. I have a brand new sprk plug intalled. Yes it's properly gapped.

7. I just verified all the internal jets to be post crappy bits (all are the good new sizes). Basically all the carb internals are like they're supposed to be.

8. No tears or holes in the diaphram. Slide slides like it should.

9. Needle is currently set at the #1 clip position (closest to the top). The plastic spacer rests against the clip (from the bottom). Little plastic washer sits on top of the clip, spring goes on, cap goes on.

10. Rubber boots are properly installed and tighened.

11. Main Jet is currently a 132

12. Carb ID (stamped on side) 30F01D E613


So, after 20 years of futzing around with multi and single carbed bikes, this little ATV has me scratching my head. At this point, my only thought is to try smaller main jets until I find one that works.

Why this one seems so different from all yours is what got me confused. However, if I hadn't ever seen this forum or what jets were working for you guys, I would have simply gone and got more jets days ago and most likely had it done by now. Just looks like my wife's Hawkeye is going to be unique in the jetting dept.


Final note - no way it's going back to the dealer. End of story.

 

Did you check the fuel tank vent or run it with the cap loose? From your settings you should be very lean. I would go back to what it was before the dealer got it and search for the real cause, a chat directly with the tech that did the work might yield some useful info. Find out exactly what he did and tell him what the problem is now since he worked on it....

 

<div class="FTQUOTE"><begin quote>Originally posted by: powerslider

Did you check the fuel tank vent or run it with the cap loose? From your settings you should be very lean. I would go back to what it was before the dealer got it and search for the real cause, a chat directly with the tech that did the work might yield some useful info. Find out exactly what he did and tell him what the problem is now since he worked on it....</end quote></div>

Yes and yes. Already tried that. Unlikely. As with all my other motorized toys, the dealers always seem to do more harm than good. I'm just unlucky that way. The only reason it went back at all was due to the recall.

 

2 possible scenarios last Attempt

There is no way it will run with that 132 main jet and so much air without the airbox on it, This as you know is called lean bog, try cutting down 2 thirds of the air buy wrapping the filter with tape or plastic or a towel and leaving only 2 square inches of air volume to pass thur the Carb, I just checked mine without the air box lid off, And it just bogs at ¾ to full throttle, "to small fuel jet needs small air", In the old days with the old 2 strokes we could get away with a uni filter and run lean, but they had higher compression, todays bikes wont do it, compression is to low and the air volume needs to be low.
Little jets get little air - big jets get bigger air
Im a gambling man and im putting my money on the above cut that air down 2/3rds or more an it will run good for you.

Another Possibility By the dealer is that the main jet was taken out and forgot to be reinstalled this would be the same symptoms but it would smoke black. And I wouldn't put it past some of those Polaris begginer techs.

If it were a electrical problem it would be there all the time since this hawkeye works with a magneto.
If the above doesn't work then call me at 405-677-6355

 

New here, following along.

Can the 4 parts be replaced from the top of the carb? Or does the pilot jet definately go through the bottom. Looking at the carb breakdown, I can't tell if the pilot jet is connected to the bottom of the assembly with everything else that just pulls out from the top.

Hawkeye (manufactured 11/05) runs ok at 1200 ft. elev, but is only driveable to 1/2 throttle at 7000 ft. elev. (22MPH) Bogs down over 1/2 throttle.

I would like to find a "happy" medium between these 2 elevations.

Thanks all!

 

got to get to the bottom for the Pilot and main, got to go to the top for the needle and clips, probally if youve never done this before , just drill 6 1/2 holes in the top of the airbox Lid 3 on each side, same fix probally same performance , and if you dont go thru deep water up to the seat then youd be fine. RP