Mikuni Bs34 Carburetor Manual

Mikuni BS34 air intake jets/passages. Mikuni Carb diagram.gif. Mine are the ones on the left. I know that the Hayes manual is wrong about the float height i.

Carburetor

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Thanks - Marc Follow steps in order. First, dial in: • - Best Main Jet must be selected before starting step 2 (needle height)! Krishna pratigya serial wallpapers free.

• Select • To get the best, most even top end power (full throttle/after 7500 rpm), select the main jet that produces the hardest pull at high rpm. • If the bike pulls harder at high rpm when cold and less hard when fully warmed up, the main jet is too large. Install a smaller main jet and retest until you find the main jet that pulls the hardest at high rpm when fully warmed up.

This must be done first - before moving on to the other tuning ranges. • If the bike doesn't pull well at high rpm when cold and gets only slightly better when fully warmed up, the main jet is too small. • In order to properly tune the midrange and low rpm carburetion, THE MAIN JET MUST FIRST BE PROPERLY SELECTED after 10 to 15 minutes of hard use! • Do not pay too much attention to the low-end richness when you are changing main jets - you still need to be using the main jets that produce the best power at high rpm. You will deal with the low-end / cruise later - after step 2.

Midrange (full throttle /5k-7k) Step 1 ( Best Main Jet) must be selected before starting step 2! • Select best needle clip position • To get the best power at full throttle / 5k-7k rpm, adjust the needle height, after you have already selected the best main jet.

• If the engine pulls better or is smoother at full throttle/5k-7k in a full throttle roll-on starting at.

• 83 Answers SOURCE: YOU CAN ADJUST FLOATS WITHOUT SPECIAL TOOLS. ALL YOU NEED IS A FOOT LONG PIECE OF CLEAR TUBING, SIZED TO FIT THE BOWL DRAIN. SET FLOATS AS CLOSE TO WHAT THEY WERE WHEN YOU REPLACED IT. INSTALL THE BOWL AND PUT THE TUBE ON THE DRAIN. OPEN THE BOWL DRAIN SCREW WHILE HOLDING THE TUBE UP BESIDE THE CARB.

WHEN YOU GET THE TUBE BESIDE THE CARB ASSY., THE GAS IN THE TUBE SHOWS YOU THE EXACT LEVEL OF FUEL IN THE BOWL. FROM THIS YOU CAN MAKE ANY ADJUSTMENTS NECESSARY FOR CORRECT LEVEL.

THE LEVEL SHOULD BE RIGHT BELOW THE PLANE WHERE THE BOWL MEETS THE CARB BASE. Posted on Oct 22, 2009.