Question about GAS Motorcycles
I gather its a dual fuel bike? ( Petrol and gas) On cars that are dual fuel, the engine will always start on petrol and switch to gas after its warmed up. If the engine is warm, it will start on gas. I assume bikes are the same. However, LPG can freeze when it is injected through the fuel system. On cars, a preheating arrangement is installed, usually by having the gas pass through a coil or tank that is heated by the engine coolant. As bikes don't often have coolant, I would imagine that a sensor prevents the gas flow until the bike engine is warm enough to stop the gas from freezing when being injected..
Posted on Apr 09, 2015
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Posted on Jan 02, 2017
SOURCE: difficulty starting
darn thing wouldnt start after I fueled it up. After sitting for 10 min it fires right up and runs great. When starting cold it fires right up with no prob. Someone told mevapor lock is my issue this sound right ? and if so what is vapor lock and how do I prevent it ? thx all for your support.,The vapor lock situation happened to me a few times with my 748, so it CAN happen. To test this theory, just fill your tank to 1/2 of what it normally holds, next time you fill it. Or pop the cap off right now and let it sit for 10 minutes and close it back up again. Al your doing is releasing the pressure on the system. Will this do any good? Well, had always been filling my tank too high and once I realized that popping the gas cap, would release the pressure, I never had a problem after.,,,
Posted on Nov 10, 2008
It depends on the tempature, if its pretty chilly out yeah. Try easing the choke in slowly, and when it will idle at about half choke go aheand and take off but run the bike easy for a few minutes then close the choke.
Posted on Mar 29, 2009
Hi there fellow XVS dragstar owner!
I had the same problem before. It is usually caused by the wrong jets installed. have it Replaced with the standard jets that came with it... this will solve the problem on acceleration. Make sure the fuel and air mixture knob is set to 2.5 turns-out from full close. clean the spark plugs.. better, replace it with a new one to ensure clean burning of fuel. also, use unleaded gas. this burns better.
hope this helps
Posted on Mar 29, 2009
If the bike has sat for a long period of time without being run - the gas that is sitting in the carb(s) will shellac.. Then the carb(s) would need to be cleaned and "rebuilt"..
Posted on Sep 14, 2009
I have a tw200 and when I have this problem its from the cam chain slipping back a notch when I unload it from my truck. I leave it in gear so when I let off the cluch it acts as a brake. I ride by my self so thats why I load it that way. I am guessing you load and unload your tw the same way. So remove the timing cover and make sure you are tdc on both the upper and lower timing marks. The bike will run if the timming is off a bit. It's really easy to set the timing on these bikes. It's easier to look for how to on the xt 200 if you need more help.
Posted on Jan 07, 2010
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