I searched and searched but found no definitive answer as to weather anyone has found the correct part # for bigger pilot jets for the v-twins. It looks like alot of peeps have simply given up and drilled their stock #40 out.

Has anyone actually found a real replacement jet for these yet.....

 

My dealer had them in stock. He looked them yp on Parts Diagram.

I still have stock bore and PBR cams. Tried the #42 and it ran too rich, couldent get it to stop puffing black smoke at idle. So I had to go back to stock #40 on my prairie.

TuffEnuff[img]i/expressions/face-icon-small-happy.gif[/img]

 

Do you have a part #. I have checked with multiple dealers, ordered in what we thought would work but have yet to find the right ones!!!

 

I am pretty sure I do need larger pilots....

I had my 02 running really good (Smoking stock 700's by about 4 bike lengths) but have recently upgraded my airbox to an 03 style and installed a K&N.

I know its getting WAY more air now, as I had to put my choke on half to get her to perform out of the hole and in the mid.
I was running 1 washer under my needles but found I had to add another to get her pulling right again(kept 145/148 mains).

Its definitly faster in the mid and top end now, but problem is it has a slight hesitation from dead stop to WOT before it rips that was not there before upgrading airbox. I was also running my air acrews near factory setting at 2.5 turns out but now I find it works best at 3.5 turns, with no difference if I go further. At 3.5 turns out it will still launch better if the choke is on slightly which proves it still wants more fuel.

Why are you so sure I dont need pilots?

 

K&N flows less than stock filter??? I think not!!

I friend of mine had his 700 dyno tuned and after jetting they found that by swapping the stock filter for a K&N netted a 2hp gain!!!

 

Back to original question...

Has anyone found a #42 replacement for the stock #40 that fits and works?

What does the Brute force have for pilot jets?

 

Gonna go out on a limb here a bit. The BF has a pair of Keihin CV carbs. When I did pipes and an air cleaner on my Harley I had to go up on my pilot jet, it's a common thing on Harleys. The HD's also run Keihin CV carbs and the dealers usually have a wealth of up sized pilot jets on hand for a few bucks a piece. I don't remember what size I went to whether it was a #42 or #45, but I would imagine that the HD Keihin CV's use the same jets as the Keihin CV's on the BF...does the Prarie use Keihin carbs too?

God bless,

-BunnMan

 

.. Have you tried adjusting with the air screw? Around 3 turns out.

 

I think it may be worth mentioning that the KVF700/Vforce700 needles are different than the KVF650 needles. The ones in the 700's are shorter so that is why you should not shim them. In fact I helped one of my buddies tune his 700 and found that it ran like a bag of crap with shims under the needles, this is not the case on the 650's.

Cryppie,
I may be wrong about the K&N not flowing more than a stock 03 or better airbox and admit that to get the most power you need a perfect 14:1 air fuel ratio so I retract that statement. I do know, however, that shimming the needles on my 650 helped alot but I just need to get rid of that initial lag before all hell breaks loose.

kwackermann,
Yep tried .25 turn increments from stock setting at 2.25 all the way out to 4.5 turns. 3.5 turns out was the best and anything after that made no difference.

Nobody knows the size of a stock Brute force pilots do they?

 

I have struggled as well with my new brute. After multiple trips to the dealer they road it and agreed the needle change was not enough. After many calls to Kawasaki they are using my brute to hopefully get it right for lots of others. We are around the 30 degree mark and this thing is dead out of the hole. It runs great with about half choke once I get going. They are now working to correct the problem with a couple of ideas concerning mains, pilots, and possibly a modification to the needle since they are not adjustable. This may be more of a problem than what most are seeing in the warmer climate but I will post hopefully if it is corrected early next week.