Forum Main Tech Help/Race Shop 250 SX pipe

250 SX pipe

Related:
Edit Tags Done
Create New Tag
Edit Tags Done

UPSman334

Vital MX member UPSman334 61867 UPSman334 https://p.vitalmx.com/photos/users/61867/avatar/c50_748F7C40_30BE_4253_9544_D5BA0863CE03_1519367719.jpg?1519366726 https://www.vitalmx.com/community/UPSman334,61867/all 01/31/18 40 60

Posts: 100

Joined: 1/31/2018

Location: Rock Creek, OH USA

4/25/2018 9:57 AM

I plan on putting a pro circuit pipe and silencer on my 2018 KTM 250 SX. what jet will need to be richer

|

sandman768

Vital MX member sandman768 42556 sandman768 https://p.vitalmx.com/photos/users/42556/avatar/c50_F76D1A6F_DC4E_40AC_ABA0_EE9DD9BF0634_1576515004.jpg?1576514241 https://www.vitalmx.com/community/sandman768,42556/all 03/21/14 15 https://www.vitalmx.com/community/sandman768,42556/setup 92 3399 54 1

Posts: 3491

Joined: 3/21/2014

Location: Saratoga Springs, NY USA

4/25/2018 10:11 AM

A lot of variables to consider...rider skill. Ambient temps. Terrain..sand/ hardpack ect. Fuel. Engine otherwise stock? ..if your bike is anything like my 18 250sx. It needs 1-2 next leaner pilot jet, and 1-3 next richer main jet, this applies to the bike no matter what pipe & silencer you have on it. Be consistent with your fuel & oil mixture so you can work on the jetting. I would also ask Pro Circuit for jetting tips, although I wonder if they have any real world testing on the 2t.

|

seth505

Vital MX member seth505 8912 seth505 https://p.vitalmx.com/photos/users/8912/avatar/c50_IMG_8735_1506991758.jpg?1506991615 https://www.vitalmx.com/community/seth505,8912/all 04/01/08 1 https://www.vitalmx.com/community/seth505,8912/setup 52 7980 74 5

Posts: 8034

Joined: 4/1/2008

Location: SD, CA USA

4/25/2018 11:17 AM

^Agreed, I had to go leaner everywhere but the main jet. I have HGS/ Bud Racing exhaust but I use a 450 or 460 main jet depending on track and conditions/temp.

|
Forum Main Tech Help/Race Shop 250 SX pipe

The Latest