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Search: Posts Made By: 190e
Forum: Airheads 05-02-2015, 11:59 AM
Replies: 89
Views: 3,392
Posted By 190e
I don't believe in excessive politeness at the...

I don't believe in excessive politeness at the expense of allowing wrong information to go unchallenged.

But when someone challenges or has to have the last word on everything that's posted...
Forum: Airheads 05-02-2015, 07:07 AM
Replies: 24
Views: 856
Posted By 190e
I guess it's going to change the overall steering...

I guess it's going to change the overall steering geometry and ride height a little and the no load length of the shock is one thing but if the springs are also substantially stiffer the difference...
Forum: Airheads 05-02-2015, 06:53 AM
Replies: 15
Views: 494
Posted By 190e
13.5 volts is way too low and closer to 14 volts...

13.5 volts is way too low and closer to 14 volts will still be too low. Check what your battery manufacturer recommends but it will be something in the region of 14.5 volts

To make sure the...
Forum: Airheads 05-01-2015, 10:44 AM
Replies: 15
Views: 494
Posted By 190e
I agree. If anything a smaller battery puts less...

I agree. If anything a smaller battery puts less demands on the charging system as it will inevitably have higher internal resistance which means a lower maximum charge current. In principle it will...
Forum: Airheads 05-01-2015, 10:32 AM
Replies: 24
Views: 856
Posted By 190e
R65 shocks are definitely shorter than /6/7's by...

R65 shocks are definitely shorter than /6/7's by approximately 15mm. And I think 5-10mm shorter than the short wheel base /5's.
Forum: Airheads 04-30-2015, 01:02 PM
Replies: 24
Views: 856
Posted By 190e
Anything is rebuildable but not at a price that...

Anything is rebuildable but not at a price that it makes any sense to pay. Unfortunately the Boge shocks are not DIY rebuildable. I wish they were as I value the pre-load adjusters.

Hagons are...
Forum: Airheads 04-30-2015, 12:50 PM
Replies: 18
Views: 851
Posted By 190e
Me too. Whatever problem you have and there...

Me too.

Whatever problem you have and there are lots of problems these days because software is so complex, it's almost inevitable someone else has already had that same problem and found the...
Forum: Airheads 04-28-2015, 05:01 AM
Replies: 5
Views: 336
Posted By 190e
I agree with accepting it for what it is. Back...

I agree with accepting it for what it is. Back when it was built an R50/5 might have held it's own against cars but to expect that now is unrealistic. I commute daily on an R45 which has only a...
Forum: Airheads 04-25-2015, 05:03 AM
Replies: 62
Views: 2,606
Posted By 190e
If you don't have ready access to a lathe a very...

If you don't have ready access to a lathe a very passable job can be done by devising a means of rotating the socket with a hand drill or bench drill while using a bench grinder or angle grinder to...
Forum: Airheads 04-22-2015, 02:17 PM
Replies: 13
Views: 788
Posted By 190e
The parallel setting of the floats is perfectly...

The parallel setting of the floats is perfectly valid for new floats or for floats known to weigh the same or very close to new.

Although most everyone employs this method, it is not valid for old...
Forum: Airheads 04-22-2015, 11:36 AM
Replies: 9
Views: 446
Posted By 190e
You did mean clean ! ultrasonic bath ?

You did mean clean !

ultrasonic bath ?
Forum: Airheads 04-22-2015, 11:31 AM
Replies: 13
Views: 788
Posted By 190e
A blocked atomiser would have made that cylinder...

A blocked atomiser would have made that cylinder run richer so now it will be running weaker than it was before.

Floats are looking old and possibly suspect.
Forum: Airheads 04-22-2015, 01:30 AM
Replies: 15
Views: 589
Posted By 190e
A batteries CCA and it's internal resistance are...

A batteries CCA and it's internal resistance are inversely proportional. I notice the PC680 is now listed as 7 mOhms which while still low is a lot higher than the 2 mohms for a PC925 mentioned in...
Forum: Airheads 04-21-2015, 11:38 AM
Replies: 10
Views: 613
Posted By 190e
Yes I think it would mean that for any given...

Yes I think it would mean that for any given charging voltage the battery with a lower internal resistance would draw more current. This is the reason why voltage regulators have a negative...
Forum: Airheads 04-21-2015, 11:18 AM
Replies: 12
Views: 383
Posted By 190e
Final drive is simple just fill to the bottom of...

Final drive is simple just fill to the bottom of the fill hole threads and no more. A 79 smooth cased drive takes 250cc of oil not 350cc as on the later ribbed case models.

Drive shaft is not so...
Forum: Airheads 04-21-2015, 04:58 AM
Replies: 58
Views: 3,693
Posted By 190e
How many of us sold bikes when our children came...

How many of us sold bikes when our children came along. I let an almost new Z900 go and didn't get back to bikes for several years on one half the size. I also did something similar recently but...
Forum: Airheads 04-21-2015, 04:36 AM
Replies: 13
Views: 788
Posted By 190e
Hot cylinder sounds to be running weak, The...

Hot cylinder sounds to be running weak, The first thing to check before doing anything else to the carbs is that the float levels are equal otherwise there is no chance of them being truly balanced....
Forum: Airheads 04-20-2015, 01:21 PM
Replies: 1
Views: 176
Posted By 190e
Does sound like the later type low resistance...

Does sound like the later type low resistance coil that you are using has caused your ignition module to overheat because it will have been pulling at least double the current of your original 1.5...
Forum: Airheads 04-20-2015, 12:39 PM
Replies: 12
Views: 383
Posted By 190e
The R45/65 (type 248 airhead) does have a shorter...

The R45/65 (type 248 airhead) does have a shorter wheel base than the mainstream type 247 airheads but there are no real differences in principle as far as gearbox removal is concerned and in fact...
Forum: Airheads 04-20-2015, 12:25 PM
Replies: 206
Views: 43,104
Posted By 190e
While I am a fan of an ignition booster with...

While I am a fan of an ignition booster with points it's worth pointing out that If electronic ignition of any description is fitted there is very little improvement in spark energy unless the coil...
Forum: Airheads 04-20-2015, 05:02 AM
Replies: 20
Views: 856
Posted By 190e
The spec for the oil switch is 3 - 7 PSI so if it...

The spec for the oil switch is 3 - 7 PSI so if it comes on the pressure is seriously low even at hot idle. You should be seeing something in the region of 30 PSI at idle and 70 PSI when the engine is...
Forum: Airheads 04-20-2015, 04:50 AM
Replies: 10
Views: 613
Posted By 190e
I don't understand that statement from EME on 2...

I don't understand that statement from EME on 2 counts.

I don't understand how a batteries higher internal resistance could damage the charging system. The opposite might be true.

I don't...
Forum: Airheads 04-10-2015, 11:59 AM
Replies: 7
Views: 436
Posted By 190e
Mines 10/78 and electrics are under tank. It's...

Mines 10/78 and electrics are under tank. It's just as well because there wouldn't have been much room in the smaller headlamp shell.
Forum: Airheads 04-09-2015, 01:42 PM
Replies: 7
Views: 436
Posted By 190e
Type 248 airheads from their introduction in 78...

Type 248 airheads from their introduction in 78 never had electrics in the headlamp shell.
Forum: Airheads 04-08-2015, 12:28 PM
Replies: 26
Views: 1,124
Posted By 190e
Use a well fitting screw driver bit clamped in...

Use a well fitting screw driver bit clamped in position with a small G cramp and turn the bit with a ring spanner that fits the hexagonal part of the bit. As soon as the screw cracks loose a few...
Forum: Airheads 04-08-2015, 10:22 AM
Replies: 30
Views: 1,260
Posted By 190e
This is how your enrichers disc should be...

This is how your enrichers disc should be assembled. Pear shaped slot always at the top and narrow end of slot always pointing towards the cylinder head.
...
Forum: Airheads 04-08-2015, 10:14 AM
Replies: 14
Views: 672
Posted By 190e
My guess is your problem is due to stiction...

My guess is your problem is due to stiction somewhere.

See my response on the other thread for exact spring rates but your problem is not the springs as the rates are very close to stock and the...
Forum: Airheads 04-08-2015, 09:46 AM
Replies: 30
Views: 1,260
Posted By 190e
That's much too cold blooded and probably doesn't...

That's much too cold blooded and probably doesn't even save you any fuel.

I do a short commute every day and can't be doing with any intransigence when the motors cold. I have it set up so it only...
Forum: Airheads 04-08-2015, 03:02 AM
Replies: 37
Views: 2,329
Posted By 190e
The object is to keep the tire in contact with...

The object is to keep the tire in contact with the road at all times and not have it bounce and skip above the surface or fail to extend into the dips. Whatever sag, spring rate and damping achieves...
Forum: Airheads 04-08-2015, 02:34 AM
Replies: 37
Views: 2,329
Posted By 190e
Calculated overall spring rates are 19.6 lb/in...

Calculated overall spring rates are 19.6 lb/in for the spring with 4.0mm wire and 22.6 lb/in for the 4.25mm spring.

Once the closely spaced coils close up the spring rate increases due to fewer...
Forum: Airheads 04-07-2015, 01:22 PM
Replies: 37
Views: 2,329
Posted By 190e
You count the number of complete full turns...

You count the number of complete full turns starting from where the end of the spring touches the next turn. If you want me to calculate the spring rate I'd also need the wire diameter accurately...
Forum: Airheads 04-07-2015, 03:35 AM
Replies: 2
Views: 204
Posted By 190e
I also have a 79 and don't see the problem. ...

I also have a 79 and don't see the problem.

If it's the relationship between pedal and footrest that's the issue maybe the foot rest is in the wrong position rather than the pedal. Not that a 79...
Forum: Airheads 04-06-2015, 10:16 AM
Replies: 3
Views: 281
Posted By 190e
You might have a problem with the breather hose...

You might have a problem with the breather hose on the left side being stuck in the cover. A little lubrication might help.
Forum: Airheads 04-05-2015, 02:53 PM
Replies: 26
Views: 1,098
Posted By 190e
These home made differential manometers are so...

These home made differential manometers are so sensitive I find they register the smallest possible adjustment that you can make. I also find doesn't matter that the levels bounce a little with the...
Forum: Airheads 04-05-2015, 02:39 PM
Replies: 10
Views: 513
Posted By 190e
I try to do just that. I put a new front tyre on...

I try to do just that. I put a new front tyre on yesterday and used an O ring seal at the valve stem hole. It will probably still leak but hopefully much more slowly than it would do otherwise. Been...
Forum: Airheads 04-05-2015, 01:58 AM
Replies: 26
Views: 1,098
Posted By 190e
There's nothing you can buy that is more...

There's nothing you can buy that is more sensitive than an oil filled manometer. With an SG of 0.865 it will give a displacement of 15.5mm for every 1mm on a mercury manometer. I used a length of...
Forum: Airheads 04-05-2015, 01:38 AM
Replies: 3
Views: 327
Posted By 190e
It's usable because the pitting is not far enough...

It's usable because the pitting is not far enough down to contact the main seal. I would polish it out and reassemble using brake grease rather than brake fluid to protect that end of the piston...
Forum: Airheads 04-01-2015, 08:01 AM
Replies: 9
Views: 440
Posted By 190e
On the smashed filter seal, I've seen some...

On the smashed filter seal, I've seen some aftermarket filters which although nominally the correct length filter were a few mm too long and needed the seals trimming down. Other possibility is...
Forum: Airheads 04-01-2015, 03:13 AM
Replies: 9
Views: 440
Posted By 190e
A 79 R65 should have dual piston ATE caliper(s)....

A 79 R65 should have dual piston ATE caliper(s). The pistons tend to suffer from corrosion so the first thing I would do is take the caliper off ( or remove the front wheel) and exercise the pistons...
Forum: Airheads 03-28-2015, 02:08 PM
Replies: 8
Views: 347
Posted By 190e
The standard figure of 24mm of fuel in the bowl...

The standard figure of 24mm of fuel in the bowl is only applicable if the floats are new or known to weigh close to new i.e.12.5 grams. If the floats are old and heavy then they may still be usable...
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