Barn Find 1982 Yamaha Maxim XJ750 Working Out the Bugs and fuel details. Get it to RUN again!

[@The_Forbidden_One2]

Love this bike got one home trying to restoring it

[@Bear-db9ye]

Mines only firing cylinders 2 and 4. Not the same coil. Any ideas?

[@mcycleshawn]

I would check wires and carbs. If the issues are not related hopefully they are being caused by a similar situation

[@fitzstermoto]

Looks like a runner to me too! Probably just had to get the rest of that bad gas out - let's take it for a rip!

[@ronniec8038]

Great find. Looks like a runner to me.

[@nakoawarrior3186]

I paid like $8.00 for a new petcock off Ebay,...fo the 2 bolts there are 4 red washers,...but the rubber go's bad in the petcock,....get a new one or a rebuild kit. Mine took like a week. Your missing the intake plug for equalizing your carburetors,....thats a vacume leak. First open the bowl drains till gas comes out of all 4,... then you try to start it. The bike run's great. Good job

[@mcycleshawn]

I do have my eyes on rebuild kits for the oem petcock. I am always a little nervous buying the cheap eBay or Amazon parts. I got the intake pressure line connected to the petcock now so hopefully no more vacuum leak. Thanks for looking out! I did neglect to add gasket material to the screws themselves! I’ll do that since I don’t have washers

[@bobaf796]

This bike sounds so good.

[@mcycleshawn]

I really do love that sounds!!

[@bennyhill3642]

Sounds good!

[@mitchcamacho1561]

totally new to motorcycles, but i have a 1980 xj650. I noticed your fuse box isn't connected in the video, is there one wired up and hidden somewhere or will they start with no fuses? thanks

[@mcycleshawn]

Someone removed it and wired it up directly. The box itself must have been corroded and not making connection anymore

[@solomonromeci]

Yes definitely I see it with the red tank

[@builtfromthegroundup84]

What is the bottle that you used as a temporary gas can called?

[@mcycleshawn]

Motion Pro auxiliary fuel tank. Great to have around the shop.

[@YooperDanKulka]

Where can I find a windshield?

[@mcycleshawn]

I’m not really a windshield guy but there are many universal ones available on eBay or Amazon. I know I have a few laying around for different bikes that I bought. Not really sure what fits on while bikes!

[@justinhupfer4614]

Hey man that bike is a XV whatever cc j!

[@mcycleshawn]

I have had a few of those. Do you have a Virago?

[@justinhupfer4614]

Yes I do and the J stands for the digital dash

[@mcycleshawn]

@@justinhupfer4614 I have had Maxim with analog gauges also. They did come with either set up. Your Virago would have a V twin engine while the Maxim is an in line 4 cylinder. Both very fun bikes!

[@marcelogonzalez7067]

Estoy por comprar un en argentina....es muy complicada poner a punto los carburadores y encendido.en baja y alta..gracias.tiene algun tema de fabrica que sea poco confiable.ya que los rep aqui son muy dificil de conseguir

[@builtfromthegroundup84]

I have the same bike i believe its a 1982 Yamaha xj750 seca

[@mcycleshawn]

Maxim and Seca share many parts

[@steveleston1848]

weird that the petcock doesn't have a off position?

[@jacob9340]

It's an auto Petcock. It's designed to ONLY supply fuel when under a vacuum. It's nice as you don't have to remember to turn Petcock on/off every time however if seals fail, the vacuum fails and it floods the carbs.. Personally, a manual Petcock is best. When it's off. It's off.

[@stevemchale6363]

​@jacob9340 YEAH, I've experienced it- I have a 1980 XS850LG with two of them on it. I still Love the Bike.