How to Synchronize the Keihin Slide Carburetors on Your Honda CB175 / CL175 / SL175 / CB200 / CL200

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Carburetor Assembly Part 1: • How to Assemble the CB...
Carburetor Assembly Part 2: • How to Assemble the CB...
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When it comes to a bike with multiple carburetors, making sure the carbs are synchronized correctly is key to your bike running at peak performance. How do you sync your carbs, though? I’m sure you’ve heard graybeards and gearheads talking about vacuum sticks and gauges and all kinds of rigamarole when trying to get their carbs all on the same page. Thankfully, you don’t have to worry about any that for two reasons-one, syncing the carbs on your Honda CB175 / CL175 / SL175 / CB200 / CL200 is an extremely simple process that doesn’t involve vacuum, and two, Brenden is here to show you how it’s done!
In this video, Brenden gives us the lowdown on how to sync the carbs on your CB175 or CB200-series bikes. He goes into detail about the two kinds of syncing-idle sync and progressive sync-what, exactly, the screws and adjusters do, and the importance of a good throttle cable. You’ll also get solid information about rubber locking boots and why they’re so important to a proper sync.
This video covers the following topics:
- Information about the idle speed screw.
- How to set idle synchronization.
- How to set progressive synchronization.
- Proper throttle cable routing.
- Setting the upper throttle cable tension and throttle cable free play.
With your carbs properly cleaned, rebuilt, and synced, your Honda CB175 / CL175 / SL175 / CB200 / CL200 should run as good or better than it did when it left the factory. Also, we should note that this syncing method works on some of Honda’s older bikes, too. While the process isn’t identical, the method we present here will work on other bikes that Honda made around the same time that the CB175 and CB200 series bikes were in production. These include the 305 / 250 Superhawks, CB77 / CL77, SL350 K1 / K2, and CB160 / CL160. Follow along with us and subscribe for more valuable motorcycle maintenance content, and let us know your thoughts and questions in the comments below.
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Need help with your vintage Honda? Attend the CMC Repair Academy and watch the full playlist of repair videos for your motorcycle:
• CB175/CL175/SL175/CB20...
• CB350/CL350/SL350
• CB360/CL360
• CB450/CL450/CB500t
• CB550 / CB500F
• CB750
• CB350F / CB400F
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Contents of this video:
00:00 - Introduction
00:40 - Compatible motorcycles
01:55 - What are we trying to accomplish?
02:48 - What to know before getting started
03:43 - The idle speed screw sync details
05:41 - Setting the idle speed screw sync
06:42 - Importance of the idle speed screw sync
08:17 - Setting the progressive sync
09:08 - Throttle cable details
09:49 - Preferred throttle cable routing
10:59 - Setting the progressive sync
14:59 - The importance of the progressive sync
15:54 - Adjusting the throttle cable free play
17:53 - Summary
18:15 - Wrap-up

Пікірлер: 14

@plusblood5101 3 ай бұрын

Fantastic Brenden Watch your videos at a regular basis One of the best details Every aspect Every bit of detail You take your time and explain a to z of the subject Very awesome Thanks for the best

@squigmcguigan8965 3 ай бұрын

I have had my CB175 for the last 15 years and thought it ran pretty well, till I watched this vid. I didn't even know about the T marks. U wondered how I was supposed to balance the slides with the steel gauze in the way. So I followed your instructions to the letter. And what I thought was a good running bike is now so much better. Thank you.

@cheeseandpickles98 26 күн бұрын

This is awesome I've been pulling my hair out trying to figure out how to sync 🤔

@les5386 6 ай бұрын

Great stuff. I'm restoring a CL200 that was my father-in-laws. The motor has been stuck for 40 years. A couple of relatives tore it partially apart over the last several years to free it up, but lost interest. I inherited a frame and 3 boxes of loose parts, and cylinders with two stuck pistons. I have the motor freed up now and I'm sorting parts to take inventory of what I have and what I'm going to need. Your videos are awesome! Thanks.

@dennisharris5609 3 ай бұрын

Best videos on web.

@russdavis1960 8 ай бұрын

I wish I would have had this information 45-ish years ago when I had my CB160. It ran good.... just would have been nice to have the information. Thanks!

@davidmillis1401 9 ай бұрын

This is awesome! Didn't know about the T mark.(a lot easier than removing air boxes to get fingers on the slides😑)

@jorgeZDT 8 ай бұрын

Thanks I needed this! ive been restoring a CB175 this last year!

@thecobra4530 8 ай бұрын

This is absolutely great stuff! I have a CB175K6 for 20 years and thought i had been doing the slide synch correctly using a small diameter drill bit on both sides and using a pipe to listen to the intake suction. I never knew about the T-mark on the idle screws and the reference mark on the carbs!. Great video Brendan and C-MC, just like all the other videos with that nice mint K7 as the demo model. Keep up the good work 🙂

@dubwicht1 4 ай бұрын

Great video. I have this type of carbs on my KZ400 and was having trouble adjusting them. I will use this to adjust my CB175 with CB160 Carbs!

@sher1man88 2 ай бұрын

Excellent explaining and procedure. Who should the screw adjustments be set? What do they do? Does CMC offer the throttle cable and rubber slide boots for 1972 SL350 K2? Thank you.