small mods make a differance

[Jeff Saline]

KLRers, The first copy lost the data formatting. Hopefully this will come through in a more useable format. Jeff *********************************** KLRers, I recently returned from the Great Divide Ride, Canada to Mexico following the Continental Divide, mostly on dirt. I measured rear tire tread depth on each bike each day and recorded mileage and tread depth in 32nds of an inch. Four of the tires were new at my shop at the beginning of the ride. One tire had about 1,500 miles on it I think when I started measuring it at the Canadian border. Here is the data I collected by measuring each tire in the same location at the end of each day's ride. The measurement location was next to the valve stem on the rear tire in the center of the tread. Tire pressures were not checked and if I was doing this again I'd also record tire pressures. Bikes were fully loaded (probably 100 or more pounds gear on each bike) and on pavement we usually ran 65-75 mph as verified by a GPS. On the dirt and gravel roads we ran from a crawl to 65 mph but I'm guessing here that most speeds were 20-45 mph in the dirt. Only two bikes made the entire trip. Two guys had to leave after about a week to go back to work. One bike was run over by a pick up truck in Colorado and totaled. The rider walked away from the scene. We were on some pavement everyday but usually it was gravel or dirt roads. Temps ranged from low 40s to mid 70s most days. We had high 90s on the first day and that was also pavement and speed. New tires lose tread fast at first as you can see from the below data. My last day the temps were probably from 70-90 degrees and speeds stayed about 65-70 actual. I was surprised that I didn't lose any tread on that day. I'll be staying with Kenda K270s as I like the price for the performance. For tire pressures I ran 32 front and 36 rear on the Kendas on pavement and about 27-29 front and 30-32 rear on dirt/gravel. I also used monster tubes in both tires. I like them but it took a lot of weight to balance the tires with the monster tubes. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT Tire #1 Jeff Kenda K270 5.10X17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 4502 0 0 17 N/A 5018 516 516 15 Paved 5450 432 948 14 Paved 5691 241 1189 14 Paved/Dirt 5878 187 1376 12 Paved/Dirt 5997 119 1495 12 Dirt 6234 237 1732 11 Dirt 6416 182 1914 11 Dirt 6736 320 2234 10 Dirt 6878 142 2376 10 Dirt 7179 301 2677 10 Dirt 7356 177 2854 9 Dirt 7503 147 3001 9 Dirt 7746 243 3244 9 Dirt 8074 328 3572 9 Paved 8333 259 3831 8 Dirt 8462 129 3960 8 Sand/Paved 8587 125 4085 7 Paved 8831 244 4329 7 Paved 9643 812 5141 7 Paved Tire #2 Martin Kenda K270 5.10X17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 7368 0 0 17 N/A 7877 509 509 15 Paved 8308 431 940 13 Paved 8546 238 1178 12 Paved/Dirt 8737 191 1369 12 Paved/Dirt 8853 116 1485 12 Dirt 9087 234 1719 11 Dirt 9266 179 1898 10 Dirt Tire #3 Bill Dunlop D606 130/90-17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 5751 0 0 18 N/A 6261 510 510 17 Paved 6688 427 937 16 Paved 6925 237 1174 15 Paved/Dirt 7113 188 1362 14 Paved/Dirt 7231 118 1480 13 Dirt 7465 234 1714 12 Dirt 7645 180 1894 12 Dirt 7961 316 2210 12 Dirt 8103 142 2352 11 Dirt Tire #4 Mike Dunlop D606 130/90-17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 23392 0 1500 12 Paved/Dirt 23636 244 1744 10 Paved/Dirt 23827 191 1935 10 Dirt 23945 118 2053 10 Dirt 24178 233 2286 10 Dirt 24357 179 2465 10 Dirt 24675 318 2783 9 Dirt 24815 140 2923 9 Dirt 25115 300 3223 9 Dirt 25293 178 3401 8 Dirt Bike Totaled Tire #5 Steve Continental TKC80 130/80-17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 27862 0 0 12 N/A 28368 506 506 11 Paved 28793 425 931 10 Paved 29029 236 1167 10 Paved/Dirt 29213 184 1351 9 Paved/Dirt 29330 117 1468 9 Dirt 29562 232 1700 9 Dirt 29740 178 1878 8 Dirt 30053 313 2191 8 Dirt 30194 141 2332 8 Dirt 30490 296 2628 7 Dirt 30661 171 2799 7 Dirt 30792 131 2930 7 Dirt 31030 238 3168 7 Dirt 31352 322 3490 6 Paved 31612 260 3750 6 Dirt 31740 128 3878 6 Sand/Paved 31863 123 4001 5 Paved 32613 750 4751 5 Paved

[Jeff Saline]

Listers, Martin made reference to some data collected during the Great Divide Ride in 2004. Here's a repost from Aug of 2004. If I was collecting data like this again I would also collect data on fronts and tire pressures. I don't see that happening again in my lifetime. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT --------- Forwarded message ---------- From: Jeff Saline To: DSN_klr650@yahoogroups.com Date: Mon, 9 Aug 2004 21:26:53 -0600 Subject: [OKAirheads] Tire Wear -- Hard Data **Reformatted Copy** Message-ID: KLRers, The first copy lost the data formatting. Hopefully this will come through in a more useable format. Jeff *********************************** KLRers, I recently returned from the Great Divide Ride, Canada to Mexico following the Continental Divide, mostly on dirt. I measured rear tire tread depth on each bike each day and recorded mileage and tread depth in 32nds of an inch. Four of the tires were new at my shop at the beginning of the ride. One tire had about 1,500 miles on it I think when I started measuring it at the Canadian border. Here is the data I collected by measuring each tire in the same location at the end of each day's ride. The measurement location was next to the valve stem on the rear tire in the center of the tread. Tire pressures were not checked and if I was doing this again I'd also record tire pressures. Bikes were fully loaded (probably 100 or more pounds gear on each bike) and on pavement we usually ran 65-75 mph as verified by a GPS. On the dirt and gravel roads we ran from a crawl to 65 mph but I'm guessing here that most speeds were 20-45 mph in the dirt. Only two bikes made the entire trip. Two guys had to leave after about a week to go back to work. One bike was run over by a pick up truck in Colorado and totaled. The rider walked away from the scene. We were on some pavement everyday but usually it was gravel or dirt roads. Temps ranged from low 40s to mid 70s most days. We had high 90s on the first day and that was also pavement and speed. New tires lose tread fast at first as you can see from the below data. My last day the temps were probably from 70-90 degrees and speeds stayed about 65-70 actual. I was surprised that I didn't lose any tread on that day. I'll be staying with Kenda K270s as I like the price for the performance. For tire pressures I ran 32 front and 36 rear on the Kendas on pavement and about 27-29 front and 30-32 rear on dirt/gravel. I also used monster tubes in both tires. I like them but it took a lot of weight to balance the tires with the monster tubes. Best, Jeff Saline ABC # 4412 South Dakota Airmarshal Airheads Beemer Club www.airheads.org The Beautiful Black Hills of South Dakota 75 R90/6, 03 KLR650, 79 R100RT Tire #1 Jeff Kenda K270 5.10X17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 4502 0 0 17 N/A 5018 516 516 15 Paved 5450 432 948 14 Paved 5691 241 1189 14 Paved/Dirt 5878 187 1376 12 Paved/Dirt 5997 119 1495 12 Dirt 6234 237 1732 11 Dirt 6416 182 1914 11 Dirt 6736 320 2234 10 Dirt 6878 142 2376 10 Dirt 7179 301 2677 10 Dirt 7356 177 2854 9 Dirt 7503 147 3001 9 Dirt 7746 243 3244 9 Dirt 8074 328 3572 9 Paved 8333 259 3831 8 Dirt 8462 129 3960 8 Sand/Paved 8587 125 4085 7 Paved 8831 244 4329 7 Paved 9643 812 5141 7 Paved Tire #2 Martin Kenda K270 5.10X17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 7368 0 0 17 N/A 7877 509 509 15 Paved 8308 431 940 13 Paved 8546 238 1178 12 Paved/Dirt 8737 191 1369 12 Paved/Dirt 8853 116 1485 12 Dirt 9087 234 1719 11 Dirt 9266 179 1898 10 Dirt Tire #3 Bill Dunlop D606 130/90-17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 5751 0 0 18 N/A 6261 510 510 17 Paved 6688 427 937 16 Paved 6925 237 1174 15 Paved/Dirt 7113 188 1362 14 Paved/Dirt 7231 118 1480 13 Dirt 7465 234 1714 12 Dirt 7645 180 1894 12 Dirt 7961 316 2210 12 Dirt 8103 142 2352 11 Dirt Tire #4 Mike Dunlop D606 130/90-17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 23392 0 1500 12 Paved/Dirt 23636 244 1744 10 Paved/Dirt 23827 191 1935 10 Dirt 23945 118 2053 10 Dirt 24178 233 2286 10 Dirt 24357 179 2465 10 Dirt 24675 318 2783 9 Dirt 24815 140 2923 9 Dirt 25115 300 3223 9 Dirt 25293 178 3401 8 Dirt Bike Totaled Tire #5 Steve Continental TKC80 130/80-17 Odometer* Miles* Accumulative Miles*Tread Depth in 32nds"* Road Surface 27862 0 0 12 N/A 28368 506 506 11 Paved 28793 425 931 10 Paved 29029 236 1167 10 Paved/Dirt 29213 184 1351 9 Paved/Dirt 29330 117 1468 9 Dirt 29562 232 1700 9 Dirt 29740 178 1878 8 Dirt 30053 313 2191 8 Dirt 30194 141 2332 8 Dirt 30490 296 2628 7 Dirt 30661 171 2799 7 Dirt 30792 131 2930 7 Dirt 31030 238 3168 7 Dirt 31352 322 3490 6 Paved 31612 260 3750 6 Dirt 31740 128 3878 6 Sand/Paved 31863 123 4001 5 Paved 32613 750 4751 5 Paved . ____________________________________________________________ Love Spell Click here to light up your life with a love spell! http://thirdpartyoffers.juno.com/TGL2141/c?cp=4PMf_POXw_I6cX0xWts4UwAAJ1DWfJIDP-R0_NC3mMpGFS0kAAYAAAAAAAAAAAAAAAAAAADNAAAAAAAAAAAAAAAAAAAARwAAAAA=

[dooden]

K&N = Krappy & Nogood My thoughts.. Dooden A15 Green Ape

--- In DSN_KLR650@yahoogroups.com, "Bill" wrote: > > If memory serves me correctly, there was a raging debate about 8 years ago regarding the K&N air filter. There was a link to an article written by a chief mechanic for a mining operation. He figured he could save the mining company tens or hundreds of thousands $$ a year by using reusable air filters on their big trucks. To make a long story short, they destroyed motors at an incredible rate. Yes the K&N's flow more. If you drive the average family car on the average highway the K&N may fine. If you ride a KLR in the dirt (think dusty conditions) and run a K&N you are asking for trouble. A simple test that was recommended way back when... coat the inside of your KLR's air intake tube (between the air filter and the carb) with Vaseline. Take it for a ride on your favorite dirt road with the K&N installed and see how much dirt coats the inside of the air intake. Clean it up and coat it again. Take the same ride with the stock air filter. Check the amount of dirt on the inside of the intake again. The results will speak volumes. > Bill > A15- tried the K&N. Liked it. Decided I liked my bike more. Switched back to stock. > > --- In DSN_KLR650@yahoogroups.com, "kusstj" wrote: > > > > > > > > Hey glad your enjoying your KLR650, I am on my second one and have never looked back. I too tried a K&N filter, however I never did get an aftermarket exhaust. > > > > There are people on this list who can offer advice on the drilling of the hole in the carb. I am unsure of the details myself. I am sure you can find this info and it may be on the FAQ list. I have left fuel misture things stock. > > > > Since my first KLR - and A9 (1995) I have gotten older (happens to us all I guess) I no longer believe in K&N filters as they offer high flow, which can mean leaner and hotter, perhaps if jetted right it may work well. Sure your results may vary. > > > > Someone on the list is a real wrencher at a shop and has shared that more often than not when someone is bringing in a bike for an engine overhaul, sure enough they were using a K&N filter. > > > > Anyhoo, now in my 40's I realize I want my toys to last (sleds, atv's vehicles) and my A16. I take good care of them, and have always left feul mixture stock. Oil injection on the sleds has always been left stock too. > > > > Sure you can get stuff to perform better, but the heart of the toy is burning fuel, and making it peppier can in the long haul make it burn itself out earlier. Remember this is not a GSXer or a F1, it is a klr650 thumper which on a good day might go 96 mph. It gets 50mpg, has about 38ish hp. and you can ride it to your deer stand. how fast do you want it to go?? > > > > A famous saying is "they run best right before they burn down". Heck - there are some guys who like to rebuilt their race machines every week - more power to them. And perhaps this is the type of motor hobby you enjoy- rebuilding motors- if so - great. But I got kids who might go to college if we have any money left after hockey. > > I can't throw too much money at my toys. > > > > best of luck, keep the rubber side down, > > todd in Chaska MN, A16, CF700efi, YAM 2504x4 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --- In DSN_KLR650@yahoogroups.com, "sulteck" wrote: > > > > > > I bought a used 1999 KLR 2 years ago now and love it for getting off road in Northern Ontario. It came with a supertrap pipe on it that gives it a tolerable rumble. On deceleration there was a back fire or poping coming from the exhaust. I just installed a K&N filter and the back fire is gone, is noticably smoother running and has a slight power increase. > > > > > > I had read some where on the net that the back fire was a carb jetting problem and was common even on the standard pipe. While shopping for the K&N I saw a jetting package. I have also read that you have to drill a cap out to get to the jets. My question is, is jetting necessary since I got rid of the back fire? > > > > > >