HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
dww

YZ400 question about gas

4 posts in this topic

I was given a YZ 400 (77 model i think)...I dont know much about dirtbikes (i alway rode street bikes) but is this the type of bike you mix gas and oil for a fuel mixture?

2 stroke i guess/ what is the mixture if this is correct

Thanks for the help

Share this post


Link to post
Share on other sites

It is recommended by Yamaha to be mixed at 32:1. But with the newer technology for that is around you can go anywhere from 32:1 to 64:1. I used Motul 800 and it recommended it at 64:1 and after a year of racing the jug looked new.

Just my $.02 worth.

------------------

Scott #410

Some Fear Racing "Cause if you don't have any you ain't going fast enough"

'99 YZ400F(Coming to a Theater near you soon)

'92 ZX-7R and '97 ZX-7RR

"Doesn't hurt till the bone is exposed"

"When cut do you bleed green? I do!"

Pics

Share this post


Link to post
Share on other sites

Vintage Iron might be a good source of locating a manual for that bike....you lucky dog!... :)

Share this post


Link to post
Share on other sites

* In 1977, Yamaha would have required an oil/gas mixture of 20:1 for a 2-stroke 400. This is 1 quart of oil (just use any modern outboard motor oil) per 5 gallons of gas.

* If you choose to use a modern 2-stroke racing lubricant (like yamalube); mix it at 32:1. (1 pint per 4 gallons of gas)

* Either choice will allow the bike to run forever.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0