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Post by sailracer on Jun 21, 2013 10:50:17 GMT -5
I would double check that to verify it. The v is supposed to point up when looking at it directly from both front, and rear.On your tire, its kinda hard to see, so, they are probably the right way. I would ask a tire dealer who does a lot of bikes. Also, just look good at some motorcycles, and note the tread.I did, just for my own peace of mind  |
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variator
by: sailracer - Jun 21, 2013 9:35:50 GMT -5
Post by sailracer on Jun 21, 2013 9:35:50 GMT -5
I've read a lot of threads about this subject. Here's my question:
For normal riding, Is the Koso variator as good as the dr pulley?
I am putting a 50 mm BBk and 20mm carb on a stock Qmb139. My goal is not to build a racing machine, but simply to have ample hillclimbing power, and to cruise 40-45 mph without constant wot. I would also prefer to keep the stock airbox and am getting some 50/16 gears. any suggestions on variator and clutch mods are welcomed ;D Something like larry's FAWKES, but not as high performance.I just want to "bump"it up a couple of notches,so I have enough power with a little to spare if i need it.
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Post by sailracer on Jun 21, 2013 9:20:28 GMT -5
Sounds to me like the float valve. You need to lower it or replace it
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Post by sailracer on Jun 21, 2013 9:18:07 GMT -5
That's a great big NO!
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Post by sailracer on Jun 21, 2013 7:52:49 GMT -5
From what i've learned, If you flip that picture upside down, thats what they should look like on the scoot from both front and rear. I"m assuming those zigzag lines are the tread direction. IMO ;D |
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Post by sailracer on Jun 21, 2013 4:17:52 GMT -5
Hmm. Deep thought after further reflection. I think the source of our disagreement is not about using a specified tire correctly in it's correct place, but rather using a tire on the opposite wheel than it was intended. Most of my experience is on bigger bikes where the tires are not interchangeable so that was never a consideration before. After further research it appears that you are correct.  With a directional tread pattern the front tires are generally marked to account for braking forces and the rears are marked to account for acceleration forces. So if you're using the same tire front and back they should be opposite. Just make sure they are going the right way. Whether you are looking at the back of the bike or the front, the V's of the tread pattern should point up. What pmatulew says is correct. So, you probably have a front tire and a rear tire. do the arrows in the tread point upwards when looking at the bike from front and rear? My scoot came stock ,with the same size tires, and the same tread pattern facing the same way. According to the pros, thats wrong. |
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Post by sailracer on Jun 20, 2013 18:39:40 GMT -5
some big ol nasty bear might have a different idea  I gotta watch out for whales  |
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Post by sailracer on Jun 20, 2013 18:16:20 GMT -5
That because it was theirs in the first place
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Post by sailracer on Jun 20, 2013 18:10:10 GMT -5
sounds good to me  My only concern was that the two may not be compatible. I am now convinced they are. |
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Post by sailracer on Jun 20, 2013 18:06:42 GMT -5
hey----thats not bad! I may just get me one o those  |
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Post by sailracer on Jun 20, 2013 14:43:41 GMT -5
Yes, the treads are the correct way, but I too was concerned with the arrow, almost to the point where I refused it.I am satisfied with what the pros. have done.
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Post by sailracer on Jun 20, 2013 13:39:35 GMT -5
Hold the clutch bell with a 24" pipe wrench.add a peice of pipe to your ratchet (for leverage. AND USE A 6 POINT SOCKET. (or try an impact wrench) ;D If all that fails, use a nut splitter |
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LOST POWER
by: sailracer - Jun 20, 2013 13:29:37 GMT -5
Post by sailracer on Jun 20, 2013 13:29:37 GMT -5
Did you think about replacing the variator?clean and adjust the carb?Adjust valves? there are a few things that could cause this. Maybe it was a coincidence that the belt let go when it did, I would check Compression, valves, carb, and then try variator. Belt may have damaged it
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Post by sailracer on Jun 20, 2013 13:18:55 GMT -5
:DBeleive me, I felt the same as you do, and you are probably right.I did a lot if checking on this, and got more yays than nays.In this application, I guess the arrow refers to tread direction. Rear tires are more for gripping and pushing power, while fronts are more for braking forces.I didn't like the idea one bit, until I was re-assured by quite a few experienced riders and mechanics that it was ok
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Post by sailracer on Jun 20, 2013 11:46:06 GMT -5
from what I understand , It is perfectly fine and acceptable (in my case) The arrow for direction has to do with the tread pattern. If the tire were mounted with the arrow, it would be wrong. I am not in any danger of shredding the tire, because i do not hit the high speeds for this to occur. The bike came with the same tires on both front and rear, same direction and tread pattern. I ALMOST LOST IT BECAUSE OF THIS! since the Michelins were installed, It handles great, and holds the road. So I would politely disagree. ;D Many bikers have also told me that reversing the tire was the right thing to do. I had my doubts, but the ride pretty much confirms that. Front and rear tread patterns are supposed to be opposite each other.
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jet
