other stroked rappy/ warrior owners jet question

[Dr. Gerbik]

Sons quad is a 397 rappy. 04 with adjustable needle, cant seem to get it jetted perfect. What size jets are you stroker guys running?

 

[duneracerweston]

bones has the 379 in his if i remember right he will be on in a bit probably

what are you running now and what is its symptoms?

 

[beastlywarrior228]

Is this with the oem carb?

 

[Dr. Gerbik]

Yes, 165, 25 pilot. No mid range power and cuts out or pops slightly at half throttle in midrange / lower midrange. Pretty much cruising around. But really gets after it on top end

 

[Dr. Gerbik]

It has hot rods 397 stroker kit.

 

[duneracerweston]

What dose the plug look like?

 

[beastlywarrior228]

Well 25 is stock pilot so that might be a little lean but then again 165 seems like a lot even for that stroker

 

[Dr. Gerbik]

Plug is on the lighter side of tan.

 

[duneracerweston]

Did it idle before you killed it last? If so then the pilot is lean and that would cause the piping at half throttle

 

[Dr. Gerbik]

Idles perfect. Possibly put the 170 in it?

 

[Dr. Gerbik]

Sorry, mis read. Keep the 165 and run a larger pilot.

 

[duneracerweston]

If you can run it at wot and kill it without letting it idle that will tell about the main but if it idles and the plug is lighter tan its a tad lean on the pilot jet a half size to a full size so a 27.5-30 pilot and for the main you need to plug chop it to tell what it needs there

 

[beastlywarrior228]

It definitly needs a larger pilot

 

[bones]

im running a 165m(little rich for my bike going to 162.5 soon) 55p but mid throttle is mostly controlled by the needle so where is your needle set?does it stumble in 1/8 throttle to 1/2 throttle rang ?

 

[bones]

well start with the needle clip in the middle grove than do a plug chop at the trouble spot to see if it rich or lean in that spot then move the clip accordingly (up to lean it down to richen it) only move the clip one grove at a time

 

[miami1]

22.5 is stock for the pilot on a raptor

 

[Dr. Gerbik]

Bones, stumbles in the 1/8 1/2 throttle range. Mabey a dumb question but what is a plug chop?

 

[beastlywarrior228]

Run it in the range of the stumble and once you get there shut it off without deaccelerating or idling and look at the color of the plug

 

[elwood]

adjust your needle height, that controls 1/4 to 3/4 throttle

 

[bones]

move you needle clip up one grove