Norm's links - Kawasaki KLR 650 Forum
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post #1 of 8 Old 07-24-2016, 05:05 PM Thread Starter
4th Gear
 
Join Date: Oct 2013
Location: Chilliwack, BC, Canada
Posts: 1,481
Norm's links

Here are some links to information which might be of interest to someone. The order is hap hazard due to lack of time. I will try to remember to add more as have tons of data.



Parts list:
https://www.dropbox.com/s/bbz7wi42uv...arket.doc?dl=0

Bypass Modification ( cooling system)
https://www.dropbox.com/sh/pwrq95427...MLael0I-a?dl=0

Cooling Fan Modifications:
https://www.dropbox.com/sh/4n2p58l38...glcQFmHUa?dl=0
Brake pedal spacer: https://www.dropbox.com/sh/gtenj7yz3...0yo2NVxta?dl=0

Extended clutch arm:
https://www.dropbox.com/sh/4g6zun4zs...8KXFdO8na?dl=0

Hydraulic clutch:
https://www.dropbox.com/sh/b6typ8ue8...mAZbE0S0a?dl=0

SV650 caliper and Gen2 rotor on Gen1:
https://www.dropbox.com/sh/2ysuhonym...PoovnuCEa?dl=0
Fuel tank pucks:
https://www.dropbox.com/sh/qs00cz2qg...9Co0yPvaa?dl=0
Fuel petcock:
https://www.dropbox.com/sh/nvrzmcust...YOZTEEmMa?dl=0
Gen1 temperature gauge template:
https://www.dropbox.com/sh/0egsvt4rr...vazvXOYQa?dl=0
Effects of air on coolant:
https://www.dropbox.com/s/kbixfk4wfa...olant.doc?dl=0

Private vehicle inspection report- blank:
https://www.dropbox.com/s/rjtyj12rqr...eport.JPG?dl=0
Here are some photos of the Gen2 AIS (Air Injection System) filter in the back of the main frame tube, removed, inside view and outlet spigot:
https://www.dropbox.com/sh/u9h2q5fx4...T6KwsKaGa?dl=0
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post #2 of 8 Old 07-24-2016, 08:57 PM
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Join Date: Nov 2009
Location: Lander, Wyoming
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Normk,
Is that a 'mere' 10-12 mm air Inlet Hole in the AIS filter installed into the frame back-bone?

If so, "What a waste of filtration area" by the 'so-called' engineers!
That makes about as much sense as the 'Rodent-Guard' over the stock Air Filter Snorkel!

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 84,000+ miles & counting
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post #3 of 8 Old 07-24-2016, 09:19 PM Thread Starter
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Location: Chilliwack, BC, Canada
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I think the inlet hole in the filter is 10 mm and the outlet nipple around 13 mm as that's the hose size. The passages in the AIS valve are much smaller, and the system depends on exhaust pressure change, so no idea as to the flow volume but likely quite small.

Might measure it at some point but not a high priority.




Quote:
Originally Posted by pdwestman View Post
Normk,
Is that a 'mere' 10-12 mm air Inlet Hole in the AIS filter installed into the frame back-bone?

If so, "What a waste of filtration area" by the 'so-called' engineers!
That makes about as much sense as the 'Rodent-Guard' over the stock Air Filter Snorkel!
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post #4 of 8 Old 07-25-2016, 05:55 PM
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Location: Texas
Posts: 1,204
On the topic of: Effects of air on coolant:
https://www.dropbox.com/s/kbixfk4wfa...olant.doc?dl=0

Does the air in the expansion tank not mix with the coolant in the same way that it would in the radiator?
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post #5 of 8 Old 07-25-2016, 08:56 PM
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Quote:
Originally Posted by GoMotor View Post
Does the air in the expansion tank not mix with the coolant in the same way that it would in the radiator?
It might mix/aerate the coolant in the tank, if one was riding on a railroad track. But it doesn't matter if it does. The coolant tank only returns coolant to the main system during cool down times. Which are usually 'motion-less', there-fore the air dissipates quickly.

Think of a non-reservoir or plugged lower hose nipple reservoir like an emulsion shock absorber, it can only do 'so-much'. Because it has air mixed or homogenized into the fluid.

Think of a properly functioning coolant reservoir system like a Nitrogen Charged or "Decarbon" shock. It has more control of the system! No chance of air mixed into the fluid to reduce the effectiveness of the system.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 84,000+ miles & counting
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post #6 of 8 Old 07-25-2016, 09:10 PM
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Quote:
Originally Posted by Normk View Post
The main purpose of the expansion tank is to purge air from the system. People seem to have the idea that it's purpose is to increase cooling by keeping the radiator full of coolant but it is keeping the air out, not the extra radiating area from the full top tank which is the advantage.
What am I missing. It seems to me that the coolant in the reservoir is exposed to air in the reservoir and than returned to the radiator with it's load of air on each heat and cool cycle.
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post #7 of 8 Old 07-25-2016, 09:23 PM Thread Starter
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The problem isn't surface exposure to the air. The problem is air which is entrained into the coolant as bubbles. The coolant tank allows these bubbles/air pockets to rise to the surface of the coolant in the reservoir and leave by means of the vent. As Paul stated, when the system cools, contraction within the engine and radiator, allows atmospheric pressure to return to the cooling system.
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post #8 of 8 Old 07-25-2016, 10:32 PM
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Quote:
Originally Posted by Normk View Post
The problem isn't surface exposure to the air. The problem is air which is entrained into the coolant as bubbles. The coolant tank allows these bubbles/air pockets to rise to the surface of the coolant in the reservoir and leave by means of the vent. As Paul stated, when the system cools, contraction within the engine and radiator, allows atmospheric pressure to return to the cooling system.
Well now, that makes sense. A bubble of air moving through the system carries less heat than a drop of water the same size.
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