Sir, I bought herohoonda pleasure by 2008. after few days itself i noticed that there is some oil leak in the rear side. Whenever i use to give for service, i used to mention the same problem, but they didnt help me out. Now my bike having milage problem, starting problem (that too only kick start after struggling long time, no self start is working). And when I slowdown my bike near any speed break or signal or traffic the engine gets stop. again i have to struggle a lot to start. while driving also its jerking and some times cracking sound coming from exhaust. waht could be the problem. please help me out.

SOURCE: oil missing

Hi ......Oil can only be 'lost' through leaks or burning. If you have no leaks then I would suggest a compression test to see if the rings are suspect or replace the valve seals. If you remove the spark plugs the colour will indicate a fault. The getting slower MAYBE a sign you are having a partial siezure ............. does your oil warning light come on or flicker ? Have you recently changed the oil filter ?  Let us know how you get on.

SOURCE: engine sound and oil leak

crank main bearing sounds like its gone and oil seal gone i had same problem needs imidiate rebuild before more damage ocures looking at an expensive job

SOURCE: crack in my yz 125 2001 crank case

You know aluminum can be welded very successfully now, so best bet is to remove that case and take it in to a good welder..You can ry the quick fix (JB Weld) is what i recommend, but success is rare !....good luck to you my friend...Tim

SOURCE: Cbr 125 struggling and cutting out on me when driving!

ALWAYS have a fire extinguisher on hand when working on carburetors.
Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well.
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Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Before putting the slide back in the throat of the carb, move the clip on the jet needle one notch lower. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.

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SOURCE: Honda Unicorn, after running for some kms, does not accelerate

Rust in the tank is not good. Put a liquid fuel tank liner in it to seal off the rust for good. Clean the carb and install an in-line fuel filter. Where are you getting gas? You may be putting bad gas in the tank, gas with a bit of water in it.

Can I get a “very helpful” rating on this answer? And it doesn’t cost anything extra!