Tip & How-To about Motorcycles

How to maintain bike

Tyres: Regularly check tyre condition and air pressure. Ensure tyre pressures are maintained at manufacturer recommended levels. Check your tyres for cuts and scrapes on your tires, which could cause a blowout. Also check the tyre treads once a week and have the wheels balanced and the alignment checked if the wear is uneven. Engine Oil: Engine oil plays an important role in ensuring smooth operation and maintenance of the bike and maintaining a correct engine oil level is important. Check engine oil level regularly. Check for oil leakage. The oil thickens due to carbon deposits creating drag in the movement of engine internals. Running the bike on dirty oil will not only increase fuel consumption but also reduce the life of the engine. Air Filter: Keep the air filter clean as dusty conditions in India tend to clog up the filter in no time. Change the air filter at recommended intervals and increase the cleaning frequency in particularly dusty climes. Clutch: Should be properly adjusted and have the right amount of free play. An over tightened clutch will cause it to slip unnoticeably and increase the fuel consumption while also burning it out quickly. Engine: Regular servicing and tune-ups will keep the engine running like clockwork and reduce your petrol bills. Pay special attention to cleaning the carburetor and maintaining valve clearances. Keep carburetor clean. Every 1500 km, clean out the carburetor float chamber and other parts. Don't neglect the spark plug, ensure it is clean, the gap is set correctly or replace it if past its prime as it's the most crucial link in proper combustion. Clean spark plug regularly, preferably every 750 km for two-stroke bike and every 1,500 km for four-stroke bike. Most modern bikes require the choke to be used on cold starts as they run lean to meet emission norms as well as fuel efficiency requirements. Transmission System: A bike's chain needs regular lubrication, cleaning and adjustment. Wash the chain with paraffin, a soft brush and a piece of cloth and remove the dirt accumulated in the chain. Don't use water as it might rust the chain links. After the dirt is cleaned with the brush and paraffin wipe the chain with a clean dry cloth. Lubricate the chain links and the chain with used engine oil. Check if your bike's chain has a free play of 2-4 mm in general by moving the chain up and down in a vertical direction with your fingers. Your bike's chain must have the correct tension and free play of the rear wheel. If the tension is more the chain wont power the rear wheel smoothly during motion. If in case the chain is loose, the power delivery from the engine to the rear wheel won't be optimal and there will be loss of power due to slippage. Take the bike to your mechanic or service center and get it adjusted to the manufacturer's specifications. Never over rev your RPM going at high-speeds continuously, as it may damage your bike's engine. Never shift your bike from fifth gear to first gear instantaneously because it damages the piston rings. Cleaning: Clean the two-wheeler body surface regularly to maintain the surface finish. Before cleaning the motorcycle, ensure that the ignition switch unit, H.T. Coil and silencer are covered using plastic sheets. Avoid exposing it to direct sunlight, try parking your bike near some shade because it becomes dull if exposed to frequent sunlight. Battery: The motorcycle battery needs periodical maintenance to ensure a long and trouble free life. Top up with distilled water whenever required. Check for any leakage from battery. It should be clean and free from any leakages. In case of non-use of motorcycle, battery should be kept fully charged. Brakes: Keep both brakes properly spaced. Keeping them too tight (too urgent), or too loose (too late) is dangerous. Brakes should be tightened as per the rider's personal style and requirement. Get your bike's brake pads replaced (front) if screeching sound persists, as sometimes it happens due to lack of oil also. Change your bike's fork oil once in every 12000 kilometers. Check sprockets and replace them if necessary (wear out limit 40000 kilometers). Try and maintain a speed of 40 to 60 kilometers. Always ensure that the tax is paid and Insurance cover (Insurance policy) is within validity period. Keep Tax Receipt and Insurance policy at home and keep Photo copy with bike.





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I drive a 2009 Mazda bt50 single cab tray back ute. The recommended unladen tyre pressures are 32 front and 30 rear but continually have approx 240 kilograms loaded in the tray. What pressures should


you should be running 8 ply tyres on the vehicle to carry the maximum load as required by the regulator
The recommended tyre pressure will be on a decal attached to the drivers door ( probably on the door frame under the latch)
Having said all that I recommend 45 psi for the rear and 40 for the front
If you run any less ,the ride will be smoother but if you load the vehicle, the rear tyres are under inflated and prone to failure from overheating
tyres are manufactured to run at a certain pressure due to the construction of the case. Talk to a tyre shop as to the pressure you should be using for the tyres.

Feb 10, 2015 | Mazda Cars & Trucks

2 Answers

What are the recommended tyre pressures please?


Hiya there,

Right then, not exactly the easiest or most straightforward of questions, but as you are a motorcycle rider, this should be easier for you to understand as you have a better idea about the road; than most peoples' perception.

So, tyre pressure? Well of course there is a recommended baseine, but there is also fluctuations you have to allow for; these variables take the form of wether you are uing the bike in warm, hot, cold, wet or dry condtitions; and all of which your tyre pressure is based and adjusted by. Heat, cold and certain road conditions means you will have to make allowances for the pressures within your tyres. Also if you have a lower pressure in your tyre and you ride on a hot day, your tyre pressure will increase.There is a problem with this, if you already have high pressure within your tyres and you decide to go out for a heavy-duty long motorcycle ride. This has a good possibility that you will get a blowout (where the tyre fails dueto extreme high temperature within the tyre walls and the pressure i too much for the compound to take, and as a result; it explodes).

FYG Michelin's website recommends 2.2 Bar Front and 2.4 Bar Rear for all the tyres recommended for use on all the ST series (2/3/4 & 4s) but these pressures only apply to their tyres as the construction is considerably different to some other manufacturers particularly with regard to weight.
Too high pressure will cause premature wear on the centre and reduced grip.
(This may show itself as quicker response due to lack of resistance to turning input)
Lower pressures will cause less wear on the centre and possibly less effective grip in the wet in road conditions due to the tread closing up but can be used to compensate for the higher temperatures developed on track (track days etc)

The best thing here to do is (carefully) wheely on down to Ducati, and get them to tell you; or consult the owners manual, and also the guide on what the tyre company (who supply yours) have to say about this.

Somewhere in the region of 30-32 Psi on the front and 30-35 Psi on the rear should be about right. Remember, hot conditions, slightly lesser, cold, slightly more.

I hope this is the fixya for you and I look forward to hearing how you get on.

Yours sincerely

Oz

P.S.

Please do leave feedback on this, as here there are a lot of questions writing in about tyre pressures and Ducati are a common bike that do attract questions. Your feedback is greatly appreciated as so it too can assist fellow riders in maintaining their pride and joy; and keep them safe for many years.

Thanks again and stay safe on those open roads!!

Mar 08, 2010 | 2003 Ducati ST4

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