Cleaning the inside of a fuel tank is more time consuming than difficult but the big problem is because the tank is vented to a sometimes damp atmosphere, the more it is cleaned the quicker new rust will form unless it is treated or sealed. Below is a link to a UK supplier to provide an example of the sort of thing...
https://www.frost.co.uk/por15-car-bike-motorcyle-fuel-tank-repair-sealer-236ml.html
Begin with putting a pint of paraffin or kerosene in the tank and adding a pound of mixed hardware; nails, screws, washers, nuts and bolts and shaking for as long as it needs to remove the majority of the rust and dirt. Gravel chippings is an alternative.
Once you are satisfied the tank is fairly clean inside, empty, rinse a few times and then wash out with water and detergent. Dry thoroughly.
Remaining rust can be removed by using many different mild acids and the internet is full of ideas using substances as diverse as lemon juice, vinegar, tannic acid, phosphoric acid...
After soaking in the substance of your choice the tank will need washing and drying again before use or treating against future corrosion.
POR15 Fuel Car Bike Motorcycle Tank Repair Sealer...
The POR 15 Petrol Tank Sealer is the...
SOURCE: won't idle steadily
Check the rubber boot that joins the carby to the engine to often have seen the hose clamps over tightened therefore creating a split in the rubber letting to much air in giving the rough idle eventually you wont be able to start it at all (have a good thorough look inside an outside of boot doesnt take much)
SOURCE: Yamaha 2001 Raptor 660, need to clean my carb
Drain and replace the gas with fresh.
Remove the air cleaner and spray carb cleaner into the inlet. Work your throttle a little then put everything back together and try to start it.
SOURCE: what is valve clearance for a 250 yamaha timberwolf
what an *******. If I had a manual or my library had one I wouldnt be asking the question. If I need help fixing something dont tell me to go jump in a lake just dont answer
SOURCE: yere my 1996 yamaha atv timberwolf when i apply
The Timberwolf has a cable operated brake system, not a hydraulic so there is not a master cylinder. Most likely causes are: mud in brake drum, broken/weak return springs (inside brake drum) or a sticking cable. Take off rear wheel to access the drum, and then remove the drum. The problem should become clear. BTW..hydraulic brakes use brake fluid, not oil.
SOURCE: Need to find serial number on 1997 Timberwolf 250
It should be stamped on the left hand lower frame.
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