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Messages - Oggers

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British Bikes / Re: Primary chain lubrication
« on: August 11, 2022, 09:51:52 AM »
The intention is indeed to fix it properly. I am after an interim measure so I can ride about in this glorious weather. Oil is still present in the chaincase and the chain is lubed up with Motul chain spray. Interesting point about the grease acting as a seal.

British Bikes / Re: Primary chain lubrication
« on: August 11, 2022, 08:57:16 AM »
The idea being the heavy grease has a greater chance of staying where it is put. Oil on its own will simply fling off.   

British Bikes / Re: Carb leak
« on: August 10, 2022, 08:19:40 AM »
All the above is good advice. I would add

Obviously check float height. It is not necessarily quite as per the book as shut off point is dependent on a number of variables.
Are the ticklers themselves sticking?
Are the needle valves OK - no scoring etc. Viton tipped needle valves tend to perform better.
Needle valve housings can also be damaged. It doesn't take much for gas to pass between housing and valve.

British Bikes / Primary chain lubrication
« on: August 09, 2022, 03:29:27 PM »

As discussed previously, I have minor issues with pressed steel chaincases leaking chain lube oil. This is not for want of trying to seal things up, but they still drip after a run.

As an interim measure, and until I can resolve the root cause properly, one or two owners tell me they use heavy duty grease on the primary chain to reduce any leaks from the chaincase. Red n tacky Lucas grease was mentioned, the idea being that the grease adheres to the chain better than the recommended thinner oil, and being considerably thicker, has less propensity to leak from the chaincase. Some oil is also used but not as much - just to keep other things inside the chaincase lubricated - seals I think in come cases....

Thoughts welcome.     

British Bikes / Re: Judder on slowing down
« on: July 25, 2022, 04:30:41 PM »
Good point about crankcase/gearbox bolts and head steady - will check.   

British Bikes / Re: Judder on slowing down
« on: July 23, 2022, 10:20:52 PM »
Update. Primary chaincase was low on oil. This has improved matters but not completly cured it. Tank rubbers fine, wheels in line, final drive chain seems OK. Other thoughts - slack/no grease in the swing arm bearings perhaps?

British Bikes / Re: Judder on slowing down
« on: July 18, 2022, 12:01:19 PM »

I've subsequently been told that it could be primary chain too slack! As it happens, there is around 1/2 to 1" play which suggets it is OK. I'll measure more accurately though.Other things mentioned include clutch cush drive rubbers and rear wheel splines - if QD wheel.

British Bikes / Judder on slowing down
« on: July 17, 2022, 11:41:25 AM »

Bit of advice please. Triumph T120 judders slightly when coming off the throttle - especially at lower speeds. It is not severe, but perceptible nevertheless. Difficult to describe, but it is not a smooth transgression to standstill. When accelerating it seems fine though.

My thoughts

Clutch pressure plate needs adjusting. Perhaps not an even gap all the way round.
Clutch springs not equally tensioned
Carbs out of balance.

Anything else you feel I should check?

Any advice much appreciated as always   

British Bikes / Re: 1973 Bonneville exhaust headers
« on: July 12, 2022, 09:29:08 AM »
Never had any real issue with exhaust headers on the many Jap bikes I have had. Couple of broken studs, but replaced easily enough. Nuts can slacken off slightly, and where that happened I simply lock-nutted it. Personally I think they make for a decent, tight, compression fit with the hollow copper gaskets.

British Bikes / Re: 1973 Bonneville exhaust headers
« on: July 11, 2022, 11:22:13 AM »
There is a fundamental difference in repairing something  - inevitable with old machinery for sure - and fixing something that was a poor design in the first place. Push in exhausts are (to me anyways) poor design, as are pressed steel chaincases with the rubbish band seal, flip up side stands, placing electrics where the bike gets wet etc etc.....

British Bikes / Re: 1973 Bonneville exhaust headers
« on: July 10, 2022, 07:54:48 PM »
If you have to apply pein hammer, cement, paste or silicone to prevent the exhaust at the head from leaking, then it's a poor design in my view.

Hence my comment that Triumphs are temperamental beasts. When sorted they are fine enough, but my gearbox is still rubbish.....

British Bikes / Re: 1973 Bonneville exhaust headers
« on: July 09, 2022, 04:50:26 PM »

No shame in not knowing much about Meriden twins. Now if I didn't know about Norton singles I'd hang my head......

I still think they serve no useful purpose (the finned rings not Triumph twins). Althoug come to think about it.....

Nowt wrong with Triumph twins. Aesthetically pleasing, relatively simple to work on. Mine handles and goes down the road very well. Very temperamental, petulant and occasionally unforgiving, but still a blast to ride.   

British Bikes / Re: 1973 Bonneville exhaust headers
« on: July 09, 2022, 03:54:32 PM »

I have a 66 T120 which has the threaded exhaust pipe adapter in the head - E5914 - that Rex possibly alludes to. Exhaust fits over that and the finned clip clamps down over it.  It seems the comparable US versions had no flared end at the head of the exhaust and no finned clip - so seems like a push fit inside the head. I think later Bonnies also adopted this push fit, though why you should have a finned clip if that were the case is indeed a little odd. I would agree that sealing may well be an issue. One for a specific forum perhaps? 

British Bikes / Re: 1973 Bonneville exhaust headers
« on: July 07, 2022, 12:32:34 PM »
Ohh Ian - for shame Sir. The finned clip whilst not the best works fine enough if POs haven't bodged the thing to death, or mangled the flared end or the exhaust adapter. I would agree though it does not provide much support, it being primarily a sealing clamp. For sure, all fastenings for the rest of the system should therefore be tight (and present!) for that very purpose.   

British Bikes / Re: She's hot
« on: July 04, 2022, 11:38:49 AM »
Many 30 something wimmin are all to keen to interpret simple explanation or advice as being told what to do. Invariably it is not the man being patronizing, rather the woman being deliberately over-sensitive using any excuse to take offence in order to denigrate the man. To me, it is a deeply abhorrent trait and is one of many reasons why I simply avoid such folk in these psychologically disturbed times.   

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