Top 20 2009 Yamaha Stratoliner - Page 8 Questions & Answers

This link might help: https://www.marineengine.com/parts/ngk/yamaha.html

If it backfires through the air filter, it may be indicative that the ignition timing has slipped and it is firing too early.

tape the new one to the old and when you pull the old one out the new one follows it

find and buy the service manual

Time to get a service before it fails.

you can order one from any yamaha dealer or check e bay https://www.google.com/search?q=84+RZ350+service+manual&rlz=1C1OKWM_enUS816US816&sxsrf=ALeKk00U1zLmo85bQebLCpFSyV8qSc0pKg%3A1620136882094&ei=slORYI-hBZKk_QaB35mIDQ&oq=84+RZ350+service+manual&gs_lcp=Cgdnd3Mtd2l6EAM6BwgAEEcQsANQpWhYhWpg9W5oAXACeACAAUaIAcUBkgEBM5gBAKABAaoBB2d3cy13aXrIAQjAAQE&sclient=gws-wiz&ved=0ahUKEwiPwuCamLDwAhUSUt8KHYFvBtEQ4dUDCA8&uact=5

https://www.manualslib.com/manual/919121/Yamaha-Yfm350fw.html?page=23#manual (Pages: 24, 86, 87, 96, 98, 367, 370, 381, 385, 391, 397, 408, 435)

Possible air leak.

if it doesnt jump its electrical

You need power to the coils. Power to the ignitor. Signal from the camshaft to make the ignitor work.

You need to get it connected to a Scan Tool, and it will tell you. https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk02abGR_hUSesocvtMn5NmZsb4r3ag%3A1608928068679&ei=REvmX4mEKYSq_QaN7ZeIBg&q=2015+Neos+4t+engine+management+light+flash ..

There is some help here, but I am not sure how helpful. Yamaha Service Centres are very helpful in my experience. https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk010QeFuZ6zVh-acFHN8HiQh2SeS0A%3A1615146536305&ei=KC5FYNOFEo_KtQatvoXABw&q=Yamaha+DT+xplorer+drum+kit.+I+changed+the+battery+kick+drum+won%27t+work. ..

Yes, if you have a V you have one Located on the Right side of the bike, inside the upper frame rail. Has a rubber covering that has UP stamped on it. Supposed to shut the bike down if the angle of the bike is 65 degrees or more. https://www.google.com/search?safe=off&rlz=1C1QJDB_enCA643CA644&sxsrf=ALeKk01U6PvfCj60-Uozhg-XIf1C3WWu5g%3A1608315300891&ei=pPHcX-fvNYWm_Qa4grSoBg&q=tip+over+sensor+location+2007+Yamaha+v-star+1300 ..

I would ask a Yamaha Dealership.

hit it with some good oil and work it slow with the key

Just Google the part. I used to have a YDS3 an RD350 YPVS.https://www.google.com/search?q=1974+YAMAHA+RD250+NEEDS+PARTS..

Try the basics first. When was it given a Full service? (Spark plugs, air/oil/fuel filters and oil change. Have you got any warning lights on the dash? Has it been standing unused for a long time as sometimes a bad batch of fuel or old fuel can cause problems. Old fuel can go "Off" and leave a sticky varnish like coating clogging injectors and sticking valves. Try this. When your fuel tank is down to about quarter full and the engine is cold add a bottle of injector cleaner to the tank. Start the bike and let it idle until it is up to working temperature. Don't 'rev it up' because at idle your getting a stronger mix of cleaner going through the injectors. Once she's warmed up take her out for a good long steady ride then fuel up on the way BACK home. If this doesn't help you'll need to get a Good bike mechanic to look at it as it could be a worn engine part or an electronics issue.

You could try to find it on ebay or make some posts on some motorbike platforums.

Bad filter or too much oil added. Put the old filter back in to check, and check the oil level.

Page 36 of your manual :>) https://www.manualslib.com/manual/823557/Yamaha-V-Star-1100.html?term=Starting+The+Engine&selected=1&page=35#manual ..