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It's kind of expensive for the resolution you get though it's a nicely complete set so the convenience may be worth it to you.
You can do the same thing for around $50-60 if you have the time/inclination to dig for bits. Summit Racing has everything you need....
Only works on Carbonated engines, so i guess we're out of luck ;D
Honestly ive heard bad things about using these for tuning carbs, most people say the best thing to get/use is an exhaust gas analyzer, which are expensive, but if youre going to build a lot of bikes it might be a good investment. Otherwise you can just go to a shop thats got an EGA and a dyno, which will probably be pretty expensive too.
Yup! If you are willing to dig about you can make lots on interesting things.....
Keep in mind, fuel/air ration on a carb equipped engine will be all over the place and quite scary to look at if you're not ready for it.
This kind of tool will be useful for getting 90% there and may save you some torn out hair if you're trying to get carbs dialed in.
single wire O2 sensor is going to be pretty worthless as it only reads voltage between 0 and 0.9v, on or off.
I've looked into it a few times and it doesn't seem worth the effort to get an 'average' reading bouncing all over the place
I know if its too lean or rich by riding and looking at spark plugs
Certainly not for any kind of dynamic ratio tracking, but at steady load/rpm ie; no erratic throttle input....mixture is mixture is mixture. For a ballpark initial setup this works just fine, I've been using one for several years to get close.
If your bike will idle then while doing so the mixture shouldn't wander much unless you have problems.
At a static 2000rpm with a similarly static load and again a lack of erratic throttle twisting, the mixture should wander much...if it does you have problems.
At a static 5000rpm...yada yada yada.
If you're attempting to 'Map' your air/fuel ratio over the entirety of your rpm bandwidth on a carburetor equip'd engine...then yeah...you're a noob and should stick to knitting. However...it's a limited but still useful tool. Especially since only maybe 1 out of every 10 guys that say they can read plugs and tune via plug chop really can. I've been hacking away at IC engines since I was a little guy and I've tuned via plug chop before...it's not simple and it's not easy. Information is a good thing, to much is better but how you manage that info is where it really matters.
are you tuning for power or epa? seems like most modern efi engines are running ratios of 14.5/1 thereabouts, from what I've read, we'd probably like to have 12.5/1 for the most power. I looked into doing this a few weeks ago, using a wideband sensor and a handheld computer unit, was pretty much told by the gurus that unless you've got a constant load and measured acceleration, they won't help you tune the carbs... but I'd like to see if it works for you
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