20 Most Recent
1974 Yamaha DT 360 - Page 2 Questions & Answers
1974 yamaha dt 360,would like
I think you might have to go used given the age of the bike....several used on ebay but none from the 360...quite a few used 250's not sure it they will deliver adequate for your bike or even will bolt in.
I have a 1975 Yamaha
stick a business card between the points to hold them open. Now check to see if a grounding problem is still present. If all is well, remove the card and look at the points to be sure the cam is actually opening the points. Set the points at .015 gap and adjust from there such that the points open at 2.0 mm ahead of TDC. If still no joy, remove the flywheel and inspect the points. Is a fiber insulating washer missing? PLEASE SEND NO MONEY FOR THIS ANSWER. I HAVE ANSWERED OVER 3500 MOTORCYCLE QUESTIONS FOR FREE AND DON'T WANT TO ACCEPT CASH FOR MY ANSWERS.
MY 1969 YAMAHA ENDURO WONT
Fisrt check the plug and plug cap. Remove this and see if you have spark from the HT wire.
Check points are clean and points gap and make sure the wire is not shorted out and you have spark there.
If not, remove the HT coil wire and condensor wire and check for spark at the points again.
If you have spark then the bottom coil is ok and then connect the condensor wire and check again.
Connect the HT coil wire after checking no shorts and if you have spark at the points and still none at the HT side then your coil is probably faulty.
Decode pre 1980 motorcycle (yamaha) vin #
Call a Yamaha dealer. If they can't de-code the antique VIN then Google " Yamaha Motor Corporation USA " > and find a number for customer relations. Make enough calls and someone is bound to be able to help.
Look at me, I'm helping!
Please rate this answer. Thanks tlparkerjr!
The horn not working dt250, have power to wire at
Does the horn have 2 wires or 1? Newer Yamahas have 2 wires....power to the horn, and then a ground wwire that goes through the horn button. If its a 2 wire....jumper the ground wire to a good ground to try the horn...if that works...check the horn button.
If its a single wire horn...ensure the horn is firmly grounded.
My.carby floods the plugs on
They always were a beast to start.
make certain the carb is clean, if it doesent flood out the overflow they are usually OK
A nice clean and relatively new air filter can help.
the float needle can wear, so you may be able to drop the float level a bit ( often over the years people used to think raise float, more petrol,go fast)
they used to have two plugs in the head, B7ES, to start and warm up, then when its warm change to the B8ES.
sometimes the oil\fuel would settle in the the bottom of the engine, and as soon as it fires it picks this up and fouls the plug,
It can help to turn the fuel off and run it until the carb is empty, before it goes in the shed, and when you start it , turn the fuel on for 10 seconds then turn it of again and try to start it
Im having problems with my dt 250, first gear
If the tranny will not shift into third (or any other gear) the problem is a bent shift fork. As far a clutch slippage, don't use any type of synthetic oil or oil with "Special" additives. Just use standard motor oil in the gearbox. Be sure the basket and center hub don't have wear notches from the plates. This can cause the disks to hang up on a notch, thus not letting the plates to fully engage.
Hi! I just rebuilt
Smoke in a two stroke motor is caused by two things. 1) Even a four stroke will smoke if it has too rich of a mixture or a carburetor that has a malfunctioning choke (a new choke plunger would fix this). Make sure you have a good o-ring on the main jet holder. This was a common problem on old Yamaha two stroke carburetors.2) The type of oil you are using is of a very low grade. Smokeless oils and synthetic oils will smoke less and could solve the problem.
You could just be seeing old residue burning out of the exhaust system, try cleaning the baffle. When you rebuilt the motor did you use a semi drying liquid type gasket material between the two case halves? This would keep transmission oil from leaking into the crankcase. If you have only started the motor in the driveway you may have to just go out for a long drive down the road to clean up all the systems.
Not finding what you are looking for?