What is the top speed of my yamaha yz80?
As Wiggysan said the top speed of a mx race bike is really not relevant due to the fact that they are designed for racing and when used for the purpose they were made for very seldom get tapped out. Also with an older bike like what you have they lose speed gradually due to wear and tear and no matter how well you maintain them over time an older bike will not be as fast as a new one and the yz80 put up against a new yz85 would be blown away. I would guess the other answers of around 45mph would be reasonable and an after market exhaust can make a difference to power output as if they didn't everyone would just stick with standard exhausts. It does come down to if the yz80 is suited to the exhaust that is selected to go on it as you can put several different types and find that one works much better, but if the bike was not dialled into the pipe then they can have the reverse effect . Top riders try pipes and then have the bike put on a dyno to see just which one makes the best difference to their particular bike and they work hard to get the best by adjusting settings.
How much does it typically cost to fill a 20 lb propane tank in the US?
Fuel prices in America differ across the regions. As many factors are included. such as privatization of the Industry. Competitive market availability of the resources.Gallon is the standard weight term in United States to sale propane. 1 US liquid Gallon is equal to 3.79 litre and 1 litre is equal to 2.2 pound.According to today's rage average rate of propane today was $ 2.36 / Gallon Lets do simple maths here.20 Pound / 2.2 = 9.09 Litre9.09 Litre / 3.79 = 2.40Cost will be $ 2.36 x 2.40 Gallon = $ 5.664
Best pipe for a 1986 yz 80?
A pipe is not going to increase the power that much, it will mainly move the power band around. FMF has been in business longer, but Pro Circuit makes a good quality product also. If you want the most bang for your buck, go with a flow port and polish from Eric Gorr at Forward Motion: http://www.eric-gorr.com/superminis.php
How to make my Yamaha PW80 2004 dirtbike faster?
If you know how you can adjust the carburator to allow more air or fuel into the engine Sprocket changing is the main way but, put a sprocket with more teeth on the front or a sprocket with less teeth on the back, take off may be a littl slower but you get a higher top speed
I have a 1986 rm 80 dirtbike?
That's not good. If the kick starter will not go down, you probably seized the engine. Pull off the head first and then try and take off the cylinder. If the cylinder won't come off, pour engine oil on top of the piston and around the edges of the piston to try and get oil in between the cylinder wall and the piston. Let it sit over night and then try again the next day. If it still will not budge, you can try tapping on the piston. To do this take a wide piece of wood and place it onto the piston. Rap the piece of wood with a hammer, don't get carried away because you can crack the piston. If the piston has grenaded, you will have to split the cases to make sure you get all of the piston pieces out of the lower end. A top end rebuild will run you about $350 if you do it yourself. If you just take in the engine (with no carb or pipe), it will run you about $500.