help, running on 2 cylinders

[deerlodge]

Sounds like the carbs were not put together correctly. They are opened via vacuum so if there is no vacuum or the Piston valve/spring was not put together right, then it will not open and suck in air/fuel.

Here is an exploded view of the carbs from a 2003 RX-1 service manual:

click thumbnails for larger images

thanks, im going to go thru the carbs tomorrow

 

[deerlodge]

just did a compression test,

155,159,151,152

plugs have fuel on them and there is spark

 

[woolyviper]

any other symptoms? speedo not working, tail light out??? sounds electrical - you might be into a controller box or stator or something like that.

 

[deerlodge]

no other symptoms, was running great and I decided to fix it now it runs on 2 I better stop opening my hood

 

[deerlodge]

well I found the problem, I think.
when I push on the throttle part way only 2 of the valves on the back of the carbs open up.

 

[deerlodge]

sent the carbs out to Jim(lakercr) and he fixed them up for me. ended up being a cracked spring. I finally got to race it this weekend, it was 50 degrees so the track was real soft. Still ended up doing 122 in a 1000'. sled ran great.

Thanks Jim for all the work you did on my sled last winter and with the carbs

 

[RedRocket]

Good to hear, Nice job on the run!