2007-09-27 07:58:47 · 6 answers · asked by Anonymous in Cars & Transportation ➔ Motorcycles
wel it shows u know alot about bikes lol new engine u need to mix it rich the first tank of gas so u dont blow it up again ahahhaha
2007-09-27 08:34:18 · update #1
Mixing at 24:1 is actually running LEANER! You have reduced the amount of gasoline in the mix thinking more oil is better. Air/fuel ratio is determined by jetting, the jets are still moving the same volume of fuel but the air/fuel ratio is now leaner because you have replaced some of the gasoline with oil.
2007-09-27 12:17:54 · answer #1 · answered by noah buddy 4 · 1⤊ 1⤋
I agree with G.R.Jim. I think 24:1 is too rich, even for break-in. I have always used 32:1 after installing a new top end. 32:1 is plenty rich enough for any two-stroke motor. Come and look at the cylinder on my '95 KX 125 and tell me I'm wrong. I have owned it for 8 years and have put in probably 12 piston/ring sets. The cylinder walls still look like new.
As far as the plug, an NKG BR8ES will work. It may not be the plug "called for", but it will work.
2007-09-27 16:49:50 · answer #2 · answered by kw13815 4 · 1⤊ 0⤋
agree, 32:1 or even 40:1 using a quality synthetic or synthetic blend oil will be fine on a new top end rebuild ... whether it is a new bike or a 20 year old bike...
the 24:1 (or even older 20:1) recommendation was back in the day when the oils were not up to todays standards for lubrication with the higher technology engines...
but if you are going to run it 24:1, drop to a BR7 but I sure wouldn't hold the rpm up in the higher range very long, or you will be redoing that engine rebuild in short order...
2007-09-27 17:56:31 · answer #3 · answered by pmk 6 · 0⤊ 0⤋
back in the days prior to being able to afford a trip to the city where any real bike shops were available, we used to burn outboard motor oil at 24:1 ... that was back in the late 60s to early 70s ... since then, most of the major oil manufacturers that refine 2 stroke oils (or create synthetically) and drastically reduced the mixing ratios due to much better performance characteristics with the oil.
when trail riding one of my KDX200 or 220, using a high quality synthetic oil, I have run at 80:1 but under race conditions riding an enduro or harescrambles, I drop back to 50:1 and have never had any issues...
on to MX with either my CR250 or KTM250SX, I run 40:1 full synthetic with half and half premium pump gas & VP race gas, again, no problems ...
I put a fresh top end in all these when they need to be freshened up a bit, but the cylinders are slick and have never had to be touched ... comes down to QUALITY lubrication, not quantity in your mixture... just my 2 cents on that point...
as for plug, you could drop down to a BR7 with whatever material tip (ES, EG, etc.) that you want to pay for, and shouldn't have any real issues unless you hold it pinned for extended periods of time, then a nice little hole will be in the top of the piston... which you really shouldn't be doing on a new top end in the first place...
2007-09-27 18:35:38 · answer #4 · answered by KelleyXR 2 · 0⤊ 0⤋
24:1 is a little to rich. You'll be fouling plugs.
Honda recommends 32:1
Since you didn't say what year your bike is, you'll have to look up the plug yourself.
http://www.bikebandit.com/parts
Go to - your bike - Cylinder Head
2007-09-27 15:26:06 · answer #5 · answered by guardrailjim 7 · 1⤊ 0⤋
I sale hondas if you email me back with what year it is I'll find out for you tomorrow superdave1760@yahoo.com
2007-09-27 21:27:07 · answer #6 · answered by superdave1760 2 · 0⤊ 0⤋