Search found 1291 matches

by John Marshall
Mon Nov 29, 2021 8:04 am
Forum: Airhead Q&A's
Topic: If not an airhead then what??
Replies: 19
Views: 462

Re: If not an airhead then what??

Fuel economy might be paramount considering the upward cost trend, though paradoxically if you had something akin to a 750 Kawasaki triple at least the fuel would not be going off over winter. A T160 would not only get through fuel but the engine oil would always be fresh too. If money was no impedi...
by John Marshall
Fri Nov 26, 2021 12:05 am
Forum: Airhead Q&A's
Topic: R100R - refitting timing chain cover
Replies: 22
Views: 366

Re: R100R - refitting timing chain cover

What mileage has the bike done? I only ask because at some point the timing chain and tensioner will need replacing. I did the last bike I had at around 80k miles.Anyhow not to worry if lower miles.
I tend to use Threebond 1215 (but only the thinnest smear ) these days.
John
by John Marshall
Sun Nov 21, 2021 12:54 pm
Forum: Airhead Q&A's
Topic: Weak Spark?
Replies: 35
Views: 769

Re: Weak Spark?

The last bike I had with points was an American export T150 and on a hot day, whilst in a huge queue getting into Le Mans in about 1977 for the Bol d’Or the heel on one set melted.Much hilarity amongst the French campers ensued. However by judicious reworking and heavy adjustment normal service was ...
by John Marshall
Sat Nov 20, 2021 12:56 pm
Forum: Airhead Q&A's
Topic: R80 1984 seat damaging tank
Replies: 10
Views: 320

Re: R80 1984 seat damaging tank

Perhaps a roast saddle of venison would be more effective?
Still it only takes a couple of mm between too tight and too loose ,which is the way of things .
John
by John Marshall
Tue Nov 09, 2021 9:46 am
Forum: Airhead Q&A's
Topic: Clutch and Alternator Queries
Replies: 17
Views: 503

Re: Clutch and Alternator Queries

Can you elicit clutch slip by accelerating hard? Is there adequate free play at the clutch arm.
by John Marshall
Mon Nov 08, 2021 8:18 pm
Forum: Airhead Q&A's
Topic: Oil leak behind alternator
Replies: 16
Views: 798

Re: Oil leak behind alternator

I did exactly this a month back. Just made sure the rear of the rotor was clean and that the new seal was installed level and true by eye. Only about 50 miles to Widecombe and back
but no more leak so far.
by John Marshall
Sat Nov 06, 2021 7:39 pm
Forum: Airhead Q&A's
Topic: R45 running probs
Replies: 29
Views: 734

Re: R45 running probs

Getting the floatbowls off in the first instance will likely reveal something, water, corrosion, brown deposits etc. Clean one carb at a time. Tip tank out and preferably get the taps off. Any brown stain along the tank seams? So …. clean carbs new plugs and fresh oils. Check and clean main battery ...
by John Marshall
Thu Nov 04, 2021 10:45 am
Forum: Airhead Q&A's
Topic: R80 1984 seat damaging tank
Replies: 10
Views: 320

Re: R80 1984 seat damaging tank

This is a feature of many motorcycles. My current airhead has a nearly new German seat but it sits slightly to far forward.This version has those crappy hinges retained by two clips. Only a couple of mm but not ideal. I use some paint protection clear vinyl from Ebay after trying to touch up any wor...
by John Marshall
Wed Nov 03, 2021 6:17 pm
Forum: Airhead Q&A's
Topic: Clutch screeching sound. Will it affect the future?
Replies: 6
Views: 253

Re: Clutch screeching sound. Will it affect the future?

I have seen over heated and worn pushrods and worn thrust bearings.Not on my bikes though.The latter are as said fairly straightforward but at least on any bikes I have had you cannot quite get the pushrod out past the frame which is sort of annoying. I take it there is a bit of free play with the c...
by John Marshall
Sat Oct 30, 2021 8:21 pm
Forum: Airhead Q&A's
Topic: R65 mono Pilot mixture screw..
Replies: 13
Views: 446

Re: R65 mono Pilot mixture screw..

Maybe a repair? Tickover should respond to the screw in the usual way though.
by John Marshall
Thu Oct 28, 2021 10:11 am
Forum: General Off Topic Chat
Topic: Millions of EV electric batteries
Replies: 20
Views: 997

Re: Millions of EV electric batteries

Whether or not the fact that winter is not as harsh as before is due to human activity I cannot tell. The earth has had periods with high CO2 and warm temperatures in the past. When I lived in Wiltshire we had somewhat exceptionally perhaps -17 C once. So cold you had to go up the pub! Motorcycling ...
by John Marshall
Sun Oct 24, 2021 5:55 pm
Forum: Airhead Q&A's
Topic: false neutrals : R100RS
Replies: 30
Views: 879

Re: false neutrals : R100RS

My experience with a 78 R100RS when it started not selecting 2nd and seemingly a false neutral required a gearbox strip. My sons no longer live here nowadays ( the first 30 years are the worst) and one was required on the end of the bar to hold it whilst I undid the flange nut, so next time I will n...
by John Marshall
Fri Oct 15, 2021 1:39 pm
Forum: Airhead Q&A's
Topic: Looking at R60/7
Replies: 17
Views: 607

Re: Looking at R60/7

Good bike, had one for years, never going to sell it then I did to get a 75/7. Slide carbs fine but benefit from new needles and jets at some stage. The main PITA problems as with all these older bikes is a ) evidence of a leaking petrol tank especially on the left b) knackered centre stand stops an...
by John Marshall
Mon Oct 04, 2021 10:33 am
Forum: Airhead Q&A's
Topic: Front wheel bearings
Replies: 56
Views: 2024

Re: Front wheel bearings

I still cannot get over the fact that I had two snowflake wheels from a 79 RS in my garage for about 8 years and could not give them away As part of a clear out of “useful spares I never needed “ they went for scrap, since which at least two people have wanted one.Other recently disposed of items in...
by John Marshall
Thu Sep 30, 2021 6:12 pm
Forum: Airhead Q&A's
Topic: Neutral light safety switch
Replies: 13
Views: 643

Re: Neutral light safety switch

Will it start when the clutch is pulled in? Is the main earth connection really good at both ends? Only familiar with bikes ten years older. If there if still a wiring plug on the back of the instrument console can you waggle it and see if anything improves. Someone will be along with better knowled...
by John Marshall
Wed Sep 29, 2021 4:08 pm
Forum: Airhead Q&A's
Topic: instrument shields
Replies: 10
Views: 412

Re: instrument shields

This technology is very interesting.Thanks for taking time to reply. Not to hijack the thread any longer I take your points about the suitability in other applications.
My shields are OK for now as well....
John
by John Marshall
Wed Sep 29, 2021 9:40 am
Forum: Airhead Q&A's
Topic: instrument shields
Replies: 10
Views: 412

Re: instrument shields

Looks like this has potential. My shields are OK but they do go floppy so I too would be interested.
Now if you could print a Morini electrotap diaphragm or Kokusan starter motor cush rubbers I would be prepared to do anything,well almost anything, to get some.
John
by John Marshall
Mon Sep 27, 2021 1:08 pm
Forum: Airhead Q&A's
Topic: Front wheel bearings
Replies: 56
Views: 2024

Re: Front wheel bearings

I too have one of those bearing greasing tools but need to replace the O- rings as they went slack, I have seen the stack assembled using a spacer tube of steel described which is useful when setting up the bearing preload.
My loose outer was only just so. Could not really see any rocking by eye.
John
by John Marshall
Sun Sep 26, 2021 6:02 pm
Forum: Airhead Q&A's
Topic: Front wheel bearings
Replies: 56
Views: 2024

Re: Front wheel bearings

I had a wheel bearing “ go off” on a rear wheel once. The bike started wandering across the road. I found a similar loose outer race. This responded to Loctite Green Bearing Fit (603 I think) and never again had a problem. I use the shake the wheel method. Think I pour boiling water over the hubs an...
by John Marshall
Thu Sep 23, 2021 5:30 pm
Forum: Airhead Q&A's
Topic: Oil leak behind alternator
Replies: 16
Views: 798

Re: Oil leak behind alternator

I’ll second that.Most parts can still be obtained. And generally I have not needed many. Another bike I have has a couple of bearings, a main (633250C) and a gearbox bearing which are special sizes and now unobtainable. There’s no sense to it is there.But we still do it.
John
by John Marshall
Thu Sep 16, 2021 4:21 pm
Forum: Airhead Q&A's
Topic: Flywheel teeth.
Replies: 5
Views: 304

Re: Flywheel teeth.

On my current bike a R75/7 the starter has a propensity not to engage from time to time. ( where’s the kickstart my friends cry) I swapped to my good spare motor and no change. I tried dressing the flywheel teeth and used a bit of dry moly rubbed onto them. This is the first airhead I have had with ...
by John Marshall
Tue Sep 07, 2021 7:36 pm
Forum: Airhead Q&A's
Topic: Vacuum take off screws.
Replies: 10
Views: 475

Re: Vacuum take off screws.

Have they ever been off? Not loctited? A soak in releasing fluid from the inside and heat should work but alloy does have a habit of doing this.You could heat a screwdriver then hold it in the screw to transfer the heat perhaps.Be careful .
John
by John Marshall
Sat Sep 04, 2021 10:46 am
Forum: Airhead Q&A's
Topic: E10
Replies: 25
Views: 1300

Re: E10

Never mind, electricity supply is close to 98% capacity I am told so when a few more Tesla's get plugged in the pumps will stop.I would not consider a bike with a plastic tank so will not worry. I have ethanol resistant fuel pipes on all bikes and can I believe get ethanol resistant floats should th...
by John Marshall
Wed Sep 01, 2021 9:31 pm
Forum: Airhead Q&A's
Topic: Aftermarket exhausts Db for an R75/6
Replies: 13
Views: 481

Re: Aftermarket exhausts Db for an R75/6

Thought I submitted my response but I will try again. Both my previous bikes a R60/7 and a R100RS had Keihan silencers and I am sure there was some detail on the very end maybe the name and diameter but cannot recall. My latest bike a R75/7 has what I believe are Breakwell and Green silencers. No re...
by John Marshall
Mon Aug 30, 2021 4:32 pm
Forum: Airhead Q&A's
Topic: R90/6 oil pump housing
Replies: 4
Views: 270

Re: R90/6 oil pump housing

This maybe the narrow bore hole on the top left under the rear of the starter cover or maybe visible with that cover and the clamshell air filter cover removed? I think it acts as a drain hole for any oil that happens along. At least that is what I think it is...and thought it appeared a bit after 7...

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