How-To: Jet a 4 Stroke MX Dirt Bike (Sample)

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1. If you're gonna waste our time atleast say so at the beginning
2. I have a 2004 Crf250r with a fmf powercore 4, I am at 4450 elevation. What jets would I run? Specifically leak jet. My bike falls on its face when I crack the throttle. Already tried o ring mod. Please help!
3. sir i have a new carb on my scooter..my question is does the pilot jet affects the motorcycle when it is running already? or does it only functions during starting and idling your motorcycle?
4. oh ok thanks did not know that wouldnt hurt the tranny next time i go riding i will try it !! Thanks!
5. well i noticed when you showed the bike running when you were shifting you were not using the clutch you were just ahofting without the clutch witch thats what a quick shifter does wasnt sure if you added one
6. do you have a quick shifter on this ?
7. I have some questions about my 05 rmz 250. The throttle hangs for 1-2 seconds before going down in rps after I rev it and the idle has to be set REALLY HIGH otherwise it´ll die. Do you think I need a bigger or smaller pilot jet? Or isn´t it even the pilot jet I need to change?
8. your crazy no ones paying 10$ to watch this when its online for free.
9. It's not the full video, because this guy wants a minimum of $10.00 to watch the full video, on his website. Crazy !!!!!
10. instant hair Dye @ 4:18!!
11. thanks so much
12. my 2007 crf150rb doesn't idle very well and always dies. Bogs lots too. I have stock jetting and slip on fmf ti powercore. Any suggestions?
13. Hey bud, I just bought a 08 crf150r and it has some carb issues. Starts and runs on choke, revs and everything, once choke is completely off it bogs, sputters and dies... any ideas?  just went through and cleaned the jets and did a basic clean.
14. Not full video. Sucks.
15. Hi, i have a crf250r 05 wich bogs really much and has a hard time starting cold. Its too lean mixture, called honda dealer he said go 45 in leak jet and main jet i forgot its like 172 original or if you know what size i should buy please link them! I've got a pro circuit pipe on aswell so if that would make difference on the jetting
16. Pls someone help me !!!! I have a very hard time trying to start my yz250f .. When I do start it with the choke on after 10+ plus it idles so high !! When I take take the choke off it will take a lot for it to start and when it does it will bog out ... ??? Also it pops so much & back fires . How do I fix this problem bc the bike sounds like shit I need to fix ASAP . Btw it's my first bike .
17. MatthewMCRepair can you please help me,
    Ive got a 2009 crf250x with the CCC mods and a jd jet kit and it backfires just as much as that yz250f in the video and I have swapped out the pilot to a 45 and lowered the needle two slots. It performed horribly with both of them and there was still backfiring so I went back to 42 pilot and 2 up on the needle the way it was before. So what is causing the backfiring? is it normal for a 4 stroke to backfire that much? thankyou.
18. I want this exact kit how do u recon I'd go getting it and getting it to me
19. On my 2005 KTM 250sxf, it bogs when I wack the throttle from the bottom and and shoots fire and pops. I bought it used and it came with an fmf exhaust system. I checked the recommended jets from fmf and My main and pilot jets were both off by about 2. Don't remember whether it was 2 up or down. But off. What should I do? It starts 1st kick cold and 75% of the time it'll start 1st kick hot WITH the hot start. Please help! By the way, GREAT video!
20. I have tried so many different pilot and main jets and my bike still won't run good, any other possibility of why it always bogs and hesitates?