First Carb Rebuild Lessons

[TEXAN]

First off, I'd like to say thanks to the forum members for all the pages of prior assistance on this subject. I wanted to share my personal experience on this topic. First, follow the Mikuni instructions and with minimum mechanical knowledge you can do this. I would say my experience is higher than most as I choose to take everything apart, from car projects to home projects. Second, use the correct hardware. I found my carbs were rebuilt with screws that weren't stainless screws and it caused me hours of frustration. Trying to drill out M3 - M4 screws without screwing up the threads is a pain in the a$$. Found most of the replacements at Ace Hardware. Lastly, if you do have a shop or person try to do your rebuild make sure they are knowledgeable about the carb. It could be the difference between having a great boating season or throwing it up for sale. Thankfully my rebuild went fairly smooth and she started up like a champ afterwards. I've have the oil pump linkage to verify is correct and she's ready for the water. Thanks!

- TEX

 

[1983]

:thumbsup:

I feel that learning what the pop off tester is used for and why its used is the most important part of rebuilding these carbs. Helps a great deal in understanding what the carb is doing when air is being drawn through it, and the fuel pump is distributing fuel throughout them.

Saved my butt on a needle and seat issue past summer.

Now if I could only figure out this tip-in initial throttle application tiny hesitation

Rob

 

[Sportster-2001-951C-Stock]

I had one today, the metering arm was just a hair too low in the chamber so the diaphragm couldn't lift the metering needle off the seat. It was a crank no start due to no fuel.

 

[TEXAN]

:thumbsup:

I feel that learning what the pop off tester is used for and why its used is the most important part of rebuilding these carbs. Helps a great deal in understanding what the carb is doing when air is being drawn through it, and the fuel pump is distributing fuel throughout them.

Saved my butt on a needle and seat issue past summer.

Now if I could only figure out this tip-in initial throttle application tiny hesitation

Rob

I know tip in all to well. Fighting this issue with my cammed 2010 Camaro. The turner here did a great good at WOT above 4k. But everything below that is inconsistent. A few more projects with the boat and backing to hours of data logging with my Hp Tuner trying to correct it.

 

[Sportster-2001-951C-Stock]

Now if I could only figure out this tip-in initial throttle application tiny hesitation

Rob

A lean spot maybe? Need to determine whether too rich or lean first THEN go from there. Could be anything from an accelerator pump issue to slight native corrosion in the transition ports (which if by cleaning VERY well doesn't clear up, a larger pilot might do the trick).

Always best to get 2-stroke motors clearly on the fat side then come back just enough till they clear out, they like a little extra fuel.

 

[grinditout]

If you use the right supplier, you can get all new hardware, with your kits.

 

[TEXAN]

If you use the right supplier, you can get all new hardware, with your kits.

I used SBT. Came with most everything you need for a rebuild. The screw issue was an unexpected but easy fix.

 

[grinditout]

Try OSD, next time, I always spend the extra 6$ for the internal screw hardware.

 

[Hoanglong983]

Điều quan trọng bạn phải quan tâm khi đu du hoc nhat ban là vấn đề học phí. Bạn cần tìm hiểu mực thu học phí của tường trường và khi nhập học phải đóng trước bao nhiêu. Đồng thời cần biết về khoản phí cho các năm kế tiếp và những khoản phí không có trong hướng dẫn nhập học nhưng vẫn phải nộp thì nó thuộc những khoản nào và mức đóng là bao nhiêu. Ngoài ra trong quá trình chọn trường các bạn cũng không nên quá chú trọng đến mức học phí cao hay thấp, mà vấn đề ở đây là bạn có thể nhận được sự đào tạo tương xứng với mức học phí mà bạn bỏ ra hay không.
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