Just Trying to get my yfz tuned and its only happend twice so far but after i make a couple runs to tune it. I turn it off and it makes a single pop sound out of the exhaust what could cause it to do that? and also at idle i give it quick gas and it bogs down then makes like an air sound out of the exhaust? The Quad is stock Except i just added the Woodward Air screw to try and tune it any info would be great thanks

 

same thing happened to my 03 raptor. what happened to me was my jets were not tuned rite and i bent 3 valves, listen i no its dumb but my buddy and i been riding for years and this moron had the same problem and u no what it was he forgot to turn on the gas

 

i Definetly Got the gas on, I just took the spark plug out and the tip of it is kinda whiteish then a lil below the tip is blackish

 

sounds lean

 

Yeah, i think im just gonna leave it alone till my jet kit comes i HATE lean [img]i/expressions/face-icon-small-mad.gif[/img]

 

I know this is off topic but i need to ask how do you like your yfz i am considering getting one in white or getting the trx450r is there anything that if you could you would change. can you compare it personally to the 05 yfz.

 

Mine does the same thing. Now at higher revs its making a funny noise. Going back to the shop I guess already. Just a week in a half old [img]i/expressions/face-icon-small-sad.gif[/img]

 

Yeah i like the yfz alot it just sucks comin from the factory you cant tune it gotta order parts first, ive never rode the 05 yfz nor a trx but i chose the yfz cuz alot of people has had good things to say about them and they seem to run great. My yfz aint even a week old yet it runs great at high rpms its just the lower rpms it seems to bog out, so i need some jets which will be here next week along with my exhaust so hopefully i get some time to tune it before it blows up on me [img]i/expressions/face-icon-small-sad.gif[/img]

 

Also, Just Checked the bolts behind the start idler gear the 1 on the left was barely loose and the one on the right was pretty much out barely on there. good thing i checked after readin the forums.

 

hey BayAreaYFZ i want to know how dose it feel to nuy a 9,000$ quad that cant keep up with my raptor cuz it dosent wanna run lol ill be over there this week if you got the jets or we can drill them and make oure own