yamahaD4L Posted January 9, 2007 Report Posted January 9, 2007 I've saw a few times that some people have had there stock shee carbs bored. I have a buddy (Sredrum) that is doing YFZ 450 carb boring. He said to check into it and get some info. I have a few Q's about this topic. 1. Does anyone have any how too's out there (pics, posts, step by step)? 2. Any does or donts? 3. How big can I go? 4. Is it a hard modification to do (i have access to equipment and tooling)? 5. How well do they work? I guess to not drag this on with Q's, anyones input would be appreciated. Thanks (not sure if i went about putting this in the forum the right way damn newbies) Quote
BigRed350x Posted January 9, 2007 Report Posted January 9, 2007 I think you can get the stockers up to like 28mm but not really sure. IMO its not worth jacking around the stockers. They are kinda crappy carbs I think. One of the first things I ditch any time I do a build. Their choke system is crap, especially with that little crossover tube, and they are mikuni. Sorry, but I've never been a fan of mikuni carbs. They don't really have much adjustment to them. Then the bowls have to be entirely removed to change out the main jet, which is really gay. Then if you remove the TORS you have to drill and tap them to get them to idle correctly. JMO. I think you can get them up to like 28mm though. Never done it so I can't really give you any tips or tricks. Sorry. - Jared Quote
jbooker82 Posted January 9, 2007 Report Posted January 9, 2007 Here is how you get your carbs board out to a bigger size. Talk to this guy. www.farmandsandtoys.com Order larger carbs from the guy above. I dont know why people would jack around with the stock carbs. If you want more power then go with larger carbs. Quote
Canadarider Posted January 9, 2007 Report Posted January 9, 2007 i have a pair of stockers bored to 27.5. Shee-male done them , he has done a pair or two give him a pm and he can tell u what and what not to do, iam selling my 27.5 carbs so if u want hit me up with a pm and ill get u pics and a price . i need to move up to 30 or 32 with the mods iam doing Quote
werner Posted January 9, 2007 Report Posted January 9, 2007 i wouldnt fuck with boring stockers. they get real finiky to tune and as mentioned cant even get to a true 28. just spend the money and get 28pwks! :ninja: Quote
yfzdunejumper Posted January 9, 2007 Report Posted January 9, 2007 Sredrum is the man he has done 2 of my carbs for my 450 and a few for friends. his work is top notch for sure. If anyone can turn the pos stock shee carb in to a runner its Chris. Quote
Shee-Male Posted January 9, 2007 Report Posted January 9, 2007 I bored a bunch of them when I worked at the machine shp, cheap mod at the time, I'm always on a budget :biggrin: . They work not to bad at all, I did a set for BenBB (for free) for his RZ Shee and they worked nicely for him as well. Good uprade over stock, or stepping stone for that matter. Quote
yamahaD4L Posted January 9, 2007 Author Report Posted January 9, 2007 yeah im not lookin to spend money im lookin to save money. ive got some other things in mind to do yet this winter and dont want to run out of money. i also figure with a little help from Sredrum i cant go wrong. i see his work all time and it is top notch. thanks for the tips and opinions Quote
yamahaD4L Posted January 9, 2007 Author Report Posted January 9, 2007 I bored a bunch of them when I worked at the machine shp, cheap mod at the time, I'm always on a budget :biggrin: .They work not to bad at all, I did a set for BenBB (for free) for his RZ Shee and they worked nicely for him as well. Good uprade over stock, or stepping stone for that matter. is that a straight or tapered bore? Quote
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