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post #1 of 19 Old 01-31-2020, 10:04 AM Thread Starter
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New to the forum question

I've had my KLR for a couple years and I just put in a 16 tooth front sprocket. I'm wondering how it would be on the highway going 80 to 85 mph for extended periods. Should I avoid going this speed for very long, even with the 16 toother?
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post #2 of 19 Old 01-31-2020, 10:52 AM Thread Starter
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BTW, it's a 2012 with doohicky mod and thermobob mod done.
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post #3 of 19 Old 01-31-2020, 11:30 AM
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As long as one checks the engine oil level 4 - 5 times a day (only takes what, 5 seconds) when travelling at higher speeds I find nothing wrong with it.

Of course running higher engine speeds may wear things faster, but I've flogged my 1987 85,000+ miles with the 15/43 tooth count for every mile!
I see no reason that it can't run another 115,000 miles.

Allow your doohickey to readjust the balancer chain every 5000 miles or so.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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post #4 of 19 Old 01-31-2020, 03:06 PM Thread Starter
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OK, sounds good to me. Under normal riding conditions, I don't use any oil (knock on wood).. but yeah, in the higher rpms, I do use a bit and my mpg goes down as well.
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post #5 of 19 Old 01-31-2020, 11:12 PM
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Question on the 16T counter.....is the drop in power/acceleration severe? You running a stock rear sprocket? To be honest I don't know what the counter size is stock...... I guess I could go look.

I'm new to the KLR scene but my first generation DR loves to float around 5000 to 5500 RPM all day long. Sometimes it would go through oil and sometimes very little to none at all...go figure.
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post #6 of 19 Old 02-01-2020, 11:02 AM Thread Starter
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I don't notice any difference in riding or handling with the 16 except in the to rpms. It is pretty sweet.
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post #7 of 19 Old 02-01-2020, 05:57 PM
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16T sprocket

How many RPM's at 80-85 mph?
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post #8 of 19 Old 02-01-2020, 06:42 PM Thread Starter
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80 mph about 5400 rpms.
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post #9 of 19 Old 02-03-2020, 09:41 AM Thread Starter
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My son has an '09 KLR 650 and a 15 tooth sprocket but also has a 130-90/17 rear tire, whereas mine is stock at 130-80/17 and that puts us about even on rpms.
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post #10 of 19 Old 02-04-2020, 06:40 PM
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16T sprocket

Quote:
Originally Posted by alwaysarider View Post
80 mph about 5400 rpms.
A commonly held belief is that sustained RPM's above 5,000 in combination with the OEM piston, rings and bore does not bode well for the KLR. I'm sure there are exceptions and the Thermobob might be a variable to consider as well.
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