My90Quadzilla
onlineSuzuki ATVerJoin: about 24 hours agoPosts: 1Oregon


about 23 hours ago · #1

Only starts with throttle wide open.
I have a 1987 Quadzilla LT500. It has a Keihin 39mm carb (stock Pilot Jet) with V-Force 3 Reeds, upgraded to 7-bolt late model head, ported and polished, bored over one time with Wiseco Piston, FMF TurbineCore 1 exhaust, K&N filter. Running 40:1 fuel mix (Castor 927) with 110 racing fuel. I usually go through the regular routine on starting it (new Spark plug) put boots on, Turn on Gas/Choke Off, Kick over slowly 5 times, Throttle closed, Bring Piston up to TDC and go just pass TDC, return Kick starter to the top and kick hard all the way through with 1/4 throttle, Choke on if cold starting. I’ve found that if I hold the throttle wide open it starts better but I Cain’t keep it to idle by adjusting the idle/pilot screw! Since then I’ve purchased a new Mikuni 38 flat slide carb. I haven’t tried starting it yet with the new carb. I have read that I need to go up 1-2 pilot jet settings from the stock one which should help on the starting. Any other suggestions.... thank you