From day one (bought used 2 years ago) my stock engine '07 SJ has needed some throttle to start even when warm. Once started, it idles, accelarates and runs great. I want to try richening up the idle mix to see if that will help. This is my first Yamaha and I haven't looked yet but I want to make sure I know which screws are the idle mix. Are they marked? For that matter, does it even have high speed mix screws? Would someone post a pic (maybe from the manual) of the location please. Do they come with the EPA plugs over the screws? Sorry for the rookie questions but I just want to go in with at least a little knowledge before turning screws.
Super Jet Idle mix screws ~ '07
- Thread starter bikerdib
- Start date
- Location
- amarillo ,tx
Not sure if there is one good question though, i know theres an idle adjust screw that makes it opens the butterflys up
NO WHITE FLAGS
DONT GIVE UP DONT SURRENDER
NO WHITE FLAGS
DONT GIVE UP DONT SURRENDER
There is an idle speed t handle you can adjust right on the front where throttle cable attaches. The low and low mixture screws are sealed off under brass plugs which are then painted over. This started in 2004 on superjets for anti-tamper EPA reg garbage. You need to drill out caps and replace the mixture screws with much longer handle screws to adjust carbs otherwise. We have them if needed.
Yami-Rider
TigerCraft FV-PRO
- Location
- Texoma
You will need to remove the carbs to drill out all the holes. You can adjust them with a screw driver but its a pina...I have 06 carbs on my sj.
You need to remove the carbs to do the job. Once caps are dilled/removed you can reach with a screwdriver but the head is hard to turn and impossible to see what you are doing on most of them when reinstalled.