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Search: Posts Made By: 190e
Forum: Airheads 07-28-2014, 11:38 PM
Replies: 32
Views: 841
Posted By 190e
That looks like Mike Valenti's write up on wheel...

That looks like Mike Valenti's write up on wheel bearings. He did a very thorough job as he does with everything. I would trust every word he says if that's your preferred method.
Forum: Airheads 07-28-2014, 12:23 PM
Replies: 39
Views: 1,603
Posted By 190e
I've always wanted to do that but never found the...

I've always wanted to do that but never found the ideal location to mount my 4ft manometer.

In principle if not magnitude in your case I think it is an important detail and you did the right thing...
Forum: Airheads 07-28-2014, 12:15 PM
Replies: 30
Views: 1,281
Posted By 190e
I agree that the offset makes a difference but...

I agree that the offset makes a difference but find it's the other around. Maybe it's my legs but the right cylinder is more masked by my knee. The left cylinder being further forward is a little...
Forum: Airheads 07-28-2014, 11:54 AM
Replies: 32
Views: 841
Posted By 190e
To use the shake the wheel test to check for the...

To use the shake the wheel test to check for the correct shimming is perfectly acceptable in my experience. That is not the same as saying set the preload with the axle nut - perhaps with no spacer...
Forum: Airheads 07-27-2014, 02:26 PM
Replies: 39
Views: 1,751
Posted By 190e
Especialy when you consider the back emf raises...

Especialy when you consider the back emf raises the primary up to a couple of hundred volts.
Forum: Airheads 07-26-2014, 10:45 AM
Replies: 7
Views: 472
Posted By 190e
The location of highest stress when starting a...

The location of highest stress when starting a new engine is the cam lob/lifter interface as it sees the same loading when being cranked as it does when running. With OHC engines I crank with the...
Forum: Airheads 07-25-2014, 09:57 AM
Replies: 126
Views: 7,281
Posted By 190e
Boxerworks is working fine for me.

Boxerworks is working fine for me.
Forum: Airheads 07-24-2014, 02:23 PM
Replies: 123
Views: 6,468
Posted By 190e
Battery internal resistance is typically 10...

Battery internal resistance is typically 10 milliohms or so but the car battery even on it's own should be a few milliohms lower than a bike battery. Chemistry and construction differences aside...
Forum: Airheads 07-24-2014, 01:50 PM
Replies: 123
Views: 6,468
Posted By 190e
It's simpler to think in terms of equivalent...

It's simpler to think in terms of equivalent circuits where the battery is represented by a resistance. In which case there is no question that a 2nd battery in parallel will present a lower...
Forum: Airheads 07-23-2014, 05:31 AM
Replies: 39
Views: 1,603
Posted By 190e
Only thing I'd add is before you do any carb...

Only thing I'd add is before you do any carb adjustments make sure the fuel levels in both float bowls are the same.
Forum: Airheads 07-23-2014, 05:24 AM
Replies: 20
Views: 1,134
Posted By 190e
The most important thing about valve clearances...

The most important thing about valve clearances is not the exact setting but that you do both cylinders so that the gaps are as close to the same as possible. Reason being that when adjusting valves...
Forum: Airheads 07-23-2014, 04:45 AM
Replies: 5
Views: 318
Posted By 190e
The throw out bearing on a 79 R65 will originally...

The throw out bearing on a 79 R65 will originally have been the radial needle roller type which was later replaced by a better ball type thrust race. With the radial roller type the rollers...
Forum: Airheads 07-22-2014, 04:15 AM
Replies: 8
Views: 405
Posted By 190e
If you wish I can calculate the spring rates for...

If you wish I can calculate the spring rates for you if you measure the spring diameter and count the number of full turn coils. List close and wide spaced coils separately if they are dual rate...
Forum: Airheads 07-20-2014, 12:53 AM
Replies: 26
Views: 1,544
Posted By 190e
I prefer 78% Nitrogen - it's so much cheaper.

I prefer 78% Nitrogen - it's so much cheaper.
Forum: Airheads 07-19-2014, 02:21 PM
Replies: 26
Views: 1,544
Posted By 190e
I didn't realise they used thyristors -...

I didn't realise they used thyristors - presumably to short circuit the stator windings. While I can see that limits the heat dissipated in the thyristors to the forward voltage drop. What impact...
Forum: Airheads 07-19-2014, 01:07 PM
Replies: 6
Views: 350
Posted By 190e
I'm not sure air in the system fully explains why...

I'm not sure air in the system fully explains why it was initially firm. Perhaps he has already done the lever tie back routine and air has somehow come back out of solution. Either way it does have...
Forum: Airheads 07-19-2014, 12:50 PM
Replies: 26
Views: 1,544
Posted By 190e
That modern bikes go with inefficient PM...

That modern bikes go with inefficient PM alternators confirms the manufactures don't give a stuff about efficiency and fuel economy. Using Plaka's conversion factor (derived from 1Hp = 746 Watts) and...
Forum: Airheads 07-19-2014, 09:11 AM
Replies: 18
Views: 632
Posted By 190e
Just to be clear when calculating ratios. ...

Just to be clear when calculating ratios.

78 - 80 R65's had ATE's with 13mm master and 36mm caliper.
81 - 84 R65's had Brembo's with 12mm master and 36mm caliper.
Forum: Airheads 07-19-2014, 08:42 AM
Replies: 4
Views: 208
Posted By 190e
The screws are M3.5 x 0.6

The screws are M3.5 x 0.6
Forum: Airheads 07-19-2014, 04:34 AM
Replies: 20
Views: 1,137
Posted By 190e
Nice kit. Wallace and Tiernan brings back...

Nice kit.

Wallace and Tiernan brings back some memories. That gauge is a thing of beauty and must have cost a small fortune. I'm guessing it's an absolute gauge.
Forum: Airheads 07-19-2014, 04:02 AM
Replies: 50
Views: 2,292
Posted By 190e
Just for completeness there is another style of...

Just for completeness there is another style of flat top bing top cover which isn't even uniformly flat across the top surface. There is a slightly depressed area with a raised ridge around the edge....
Forum: Airheads 07-18-2014, 12:43 PM
Replies: 20
Views: 1,137
Posted By 190e
Time is an excellent example of the problem -...

Time is an excellent example of the problem - it's all relative.
Forum: Airheads 07-18-2014, 12:41 PM
Replies: 5
Views: 381
Posted By 190e
To be fair to the guy it was.

To be fair to the guy it was.
Forum: Airheads 07-18-2014, 12:21 PM
Replies: 20
Views: 1,137
Posted By 190e
This particualar digital gauge may well be...

This particualar digital gauge may well be accurate but it's wrong to assume all digital devices are accurate to the least significant digit they are able to display. There are issues of range and...
Forum: Airheads 07-18-2014, 12:02 PM
Replies: 18
Views: 632
Posted By 190e
ATE's as used on early R65's are conventional...

ATE's as used on early R65's are conventional dual piston calipers very similar and dimensionally the same including 36mm piston size as the Brembo's used after 81. They are all but identical but...
Forum: Airheads 07-18-2014, 10:13 AM
Replies: 50
Views: 2,292
Posted By 190e
My 79 model year (build date Nov. 78) flatops...

My 79 model year (build date Nov. 78) flatops have the Bing lettering cast in.
Forum: Airheads 07-18-2014, 03:33 AM
Replies: 18
Views: 632
Posted By 190e
For a benchmark a stock early R65 with 13mm...

For a benchmark a stock early R65 with 13mm master cylinder has a ratio of 15.3 which I can tell you is poor. 81 -84 models had a 12mm which gave 18 - better.

Twin disc versions had a 16mm master...
Forum: Airheads 07-18-2014, 02:12 AM
Replies: 27
Views: 1,114
Posted By 190e
I've seen something about the benefit of a...

I've seen something about the benefit of a slightly wider 2nd ring gap. Something about relieving the pressure built up between the 1st and 2nd ring which then allows the first ring to seal better.
Forum: Airheads 07-18-2014, 02:05 AM
Replies: 5
Views: 381
Posted By 190e
I'm not certain about an 82 but the earlier R65's...

I'm not certain about an 82 but the earlier R65's used separate bulbs for brake and tail with the only common thing being the earth connection so that's what I would check first. They are even fed by...
Forum: Airheads 07-16-2014, 10:51 AM
Replies: 15
Views: 809
Posted By 190e
OK I'll bite but I can't believe it's not...

OK I'll bite but I can't believe it's not obvious.

If old floats get heavy as some assuredly do it will raise the fuel level and enrichen the mixture across the whole range but more so at idle and...
Forum: Airheads 07-15-2014, 03:00 PM
Replies: 50
Views: 2,473
Posted By 190e
I take it from the battery manufacturers data...

I take it from the battery manufacturers data sheets which incidentally for my make of battery give the same figures for both AGM and Gel - at 25 C 9% self discharge after 3 months. Odyssey (which...
Forum: Airheads 07-15-2014, 12:34 PM
Replies: 20
Views: 1,137
Posted By 190e
I used to repair and calibrate bourdon tube...

I used to repair and calibrate bourdon tube pressure gauges and I wouldn't trust a tiny 2" or 3" dial gauge at all unless It had been calibrated to a known standard. The pencil gauges would normally...
Forum: Airheads 07-15-2014, 12:24 PM
Replies: 50
Views: 2,473
Posted By 190e
I do a very short commute daily and do not need...

I do a very short commute daily and do not need any supplementary battery charging at all and I know that with some certainty after careful monitoring of the battery. At least that was the case once...
Forum: Airheads 07-15-2014, 11:58 AM
Replies: 34
Views: 1,275
Posted By 190e
Cleaning slingers is not a trivial undertaking....

Cleaning slingers is not a trivial undertaking. Aren't we glad the later bikes have filters.

44 odd years ago I had Fiat 500 with a twin cylinder air cooled engine ( strange device but they are...
Forum: Airheads 07-15-2014, 05:39 AM
Replies: 50
Views: 2,292
Posted By 190e
Bluhduh The slides may wear but in a CV carb that's less...

The slides may wear but in a CV carb that's less critical than a slide carb because any leakage is straight back to atmospheric pressure and not to the inlet tract on the other side of the butter...
Forum: Airheads 07-12-2014, 10:04 AM
Replies: 9
Views: 567
Posted By 190e
I agree, the idle mixture is much too lean. ...

I agree, the idle mixture is much too lean.

Idle mixture should be leanish but not so much that it lowers the idle speed. Turn out the mixture screws in very small steps until it achieves...
Forum: Airheads 07-11-2014, 12:54 PM
Replies: 7
Views: 447
Posted By 190e
The only data I've seen of that sort is max....

The only data I've seen of that sort is max. permissible wheel loads.

http://m5.i.pbase.com/o6/38/54838/1/74356145.uMz01Stb.R90SManual79.jpghttp://
http://www.pbase.com/dwerbil/image/74356145...
Forum: Airheads 07-06-2014, 07:34 AM
Replies: 174
Views: 14,595
Posted By 190e
When I check my odometer aginst my car and...

When I check my odometer aginst my car and satellite data it is quite accurate but actually under reads by 2 %. That is with a 4.00 tire which at 675mm dia is at the high end of the spectrum. A...
Forum: Airheads 07-05-2014, 02:30 PM
Replies: 50
Views: 2,473
Posted By 190e
Again being simplistic and ignoring some effects ...

Again being simplistic and ignoring some effects

6 secs
Forum: Airheads 07-05-2014, 12:39 PM
Replies: 15
Views: 700
Posted By 190e
"Open rotor" means open circuit or infinite...

"Open rotor" means open circuit or infinite resistance. The coil of wire has a break in it so no current will flow.

In a good rotor the coil of wire has a low resistance value of something like 3...
Showing results 1 to 40 of 384

 
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