Need some advice, '85 550E carbs...

[Guest]

I can't believe how small these stock main jets are in these carbs...

1 & 4 are 90.0
2 & 3 are 97.5

These are the specified main jets sizes for a stock "E" bike as found in the Suzuki service manual.

I was thinking of using 97.5 mains in 1/4, and 105 mains in 2/3. Would these work with the stock airbox fitted with a K&N drop in filter?

If I were to scrap the airbox & use K&N pods what size mains would be recommended?

Current OEM carb set-up is:

1/4 - 90 main
2/3 - 97.5 main
fuel pilots - 37.5
air pilots - 155
​

Just looking for some feedback, particuarly from those with similar bike.

thanks,

mike

 

[Guest]

All in the plug reads my friend.

You also don't want more than two threads up of color on the plugs.

 

[Dave8338]

Bill...what are those plugs out of ?????

 

[Guest]

All in the plug reads my friend.

You also don't want more than two threads up of color on the plugs.

thanks Bill,

Yes, i agree - I'm currently in the middle of dipping & cleaning these siamese carbs. I was just looking for opinions.

How's that beast of yours running?? You haven't blown this one up yet have you??

 

[Guest]

Bill...what are those plugs out of ?????

The 1230 motor.

thanks Bill,

Yes, i agree - I'm currently in the middle of dipping & cleaning these siamese carbs. I was just looking for opinions.

How's that beast of yours running?? You haven't blown this one up yet have you??

YET???
I don't like being kicked in the head over and over so I'm being extra cautious hence cutting the plugs.
Set advance with degree wheel ect ect ect

 

[don]

Hiker,

I don't know how simmilar they are, but I have an 83 with the dual carbs all stock. Jets in mine are:

1-4 95
2-3 102.5
pilot 35
screws 3.5 turns +- 1/4 depending on cylinder #

To me your mains sound lean and you pilots sound ritch. Yours IS 2 years newer than mine though.

Hope it helps. Good luck.