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2000 Yamaha Xv 250 Virago S Questions & Answers
How to free aclutch after syanding for 3 yrs
drain oil, remove right side case, you will see the clutch, remove clutch hub nut, inner and outer clutch pressure plates will then come out, remove bolt holding springs in, separate fibers and steels, best bet is to replace full set.
Jet size for a yamaha route 66 with a 17/38 sprocket
well, the trans feels like 4 taller gears because with your sprocket change you changed the gear ration and gave yourself taller gears. 1 tooth up front is like 2.2 in back. effectively you changed about 9 teeth. humongous gearing change. Its a 250 and does not have enough hp to pull hard up top.
You don't change jets for gearing per se'. You jet for motor and exhaust and climate. To see if you need to change jetting up top you do a plug chop. Run WFO throttle at top speed and hit kill switch(pull clutch in) then when you have coasted to a stop remove the plug and look at it. you need to see how the insulator looks. Look down at the base not tip. should be chocolate milk color in a band about 5-7mm. thinner or lighter then bigger main jet. darker or fatter then smaller main jet.
JUST FYI-Shimming the needle only affects 1/3 throttle to about 2/3 throttle.
You should probably try to put the 16 back on it will help the bike pull. Too tall of gearing IMO.
I have a 2000 virago 250 ran perfect for the first
Are you sure the rear cylinder has good compression? Did you check the two cylinders with a compression gage? The compression should be within 10% of each other. Check the ignition timing of the rear cylinder. I will bet the valves just need to be re-seated on the rear cylinder.
Ok, so i've turned on
your battery is dead. It is so dead it may not even take a jump start. replace battery. You can always push start if you really need to get somewhere.
No current to spark plug
Best thing to do is get the whole system checked out by a yam electrician ,It will be less cost to you in the long run .as they can test each component for faults .
Hello, I have a 1990 route 66 250cc
You can get to 55 with and old Honda 90cc. Your 250cc should do 80 with no problem. Your gearing is backwards. The larger the rear sprocket, the slower you go. You have tried to compensate a loss of engine power with a gear reduction demanding more from the what little power the engine is putting out. Put the 45T sprocket back on and do some work on the cylinder head. Ethanol is famous for corrosion and your valves are proof of it. All your power and gas mileage are going out the exhaust pipe. Pull the cylinder head and re-seat the valves. This should get back the power that is missing. You didn't mention any smoking so the piston rings must still be good. The stock main jet is #110. The higher the number , the richer the mix. Go to a #112 or #115 if you need to but only after the valve job. Right now the main jet is not the problem and changing it will only mean even worse mpg.
I answered this question once but the answer has disappeared into cyberspace. FixYa has a problem with that occasionally. A “very helpful” rating for this answer? Thanks!
RED SPARK
the fuel doesn't care what colour the spark is. Your problem lies elsewhere.
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