Carb Sync Mod
Senior Member
Back Marker
Joined: Jan 2009
Posts: 224
From: Hills of Kentucky
also make sure that your vacuum lines are the same length, or are at least reasonably close to the same length.
I ran a test years ago with BMW's LCD sync tool where I ran two different lengths of hose to the two cylinders, synched them, and then reversed the lines. The result was that the carbs were no longer synched.
Once I trimmed them to be same length the readings stayed the same.
Kai Ju
I ran a test years ago with BMW's LCD sync tool where I ran two different lengths of hose to the two cylinders, synched them, and then reversed the lines. The result was that the carbs were no longer synched.
Once I trimmed them to be same length the readings stayed the same.
Kai Ju
tyronne
Member
Squid
Joined: Jun 2009
Posts: 35
From: Denver, CO
Crazy question
How do you get to this unreachable allen bolt on the front cylinder to start with? I tried taping a hex wrench to a stick, can't even get the wrench seated in the bolt.
Regards,
Mechanically inept
Regards,
Mechanically inept
Administrator
MotoGP
Joined: Apr 2006
Posts: 4,402
From: Kempner, TX
You use a ¼ drive hex bit. On a 6” extension with a flex joint at the bit end. Add a dab of grease to the hex bit, so the screw will come out with the tool after the last thread. To install the threaded barb fitting. I use a flexible long reach parts grabber dohicky. Take the aluminum sealing washer, put a dab of grease on it, slide it on the barb fitting. Then grab the barb fitting in the little wire claws of the flexible dohicky, and start it in the head.. once you get a few turns in there. Use a deep well ¼ drive socket with a flex joint and 6” extension to tighten it up.
Sounds harder then it is.
Senior Member
Back Marker
Joined: Jan 2009
Posts: 224
From: Hills of Kentucky
You use a ¼ drive hex bit. On a 6” extension with a flex joint at the bit end. Add a dab of grease to the hex bit, so the screw will come out with the tool after the last thread. To install the threaded barb fitting. I use a flexible long reach parts grabber dohicky. Take the aluminum sealing washer, put a dab of grease on it, slide it on the barb fitting. Then grab the barb fitting in the little wire claws of the flexible dohicky, and start it in the head.. once you get a few turns in there. Use a deep well ¼ drive socket with a flex joint and 6” extension to tighten it up.
Sounds harder then it is.
Member
Squid
Joined: Jun 2009
Posts: 35
From: Denver, CO
Thanks, I got it out, but lost it in the engine, so I have to wait for a week to get another one ordered. I checked with 2 Honda dealers, and one quoted $200 for a carb sync, and the other quoted $43. The latter would be so much worth it, rather than many hours of my time.
Administrator
MotoGP
Joined: Apr 2006
Posts: 4,402
From: Kempner, TX
Well you’re in Denver... so I know a guy there... well lets just say... this guy is a an all around great dude, and a top wrench.. If you want the job done right.. first time, no BS, and know that if he tells you should do or replace X.. it's just the truth,, no sales or up sale BS.
Call OTD on E Colfax, , talk with Jonathan he is mostly likely to answer the phone or Eddie in service.. Eddie is “THE MAN” at the shop.. his race teams are top notch, with little accomplishments like, trophies in Pikes peak and others. Get a quote on the job, and ask him about a few dyno pulls and tuning while your there.. It’ll be a bit more then just a sync,, but when you leave,, you will have all the rideability and power that is possible from your set up..
If you just want the part,,, Ask,, chances are, Eddie will scrounge around,, and hand you what you need if it's in the parts box's.
if you do go in,, tell Eddie Bronco said Hi....
Call OTD on E Colfax, , talk with Jonathan he is mostly likely to answer the phone or Eddie in service.. Eddie is “THE MAN” at the shop.. his race teams are top notch, with little accomplishments like, trophies in Pikes peak and others. Get a quote on the job, and ask him about a few dyno pulls and tuning while your there.. It’ll be a bit more then just a sync,, but when you leave,, you will have all the rideability and power that is possible from your set up..
If you just want the part,,, Ask,, chances are, Eddie will scrounge around,, and hand you what you need if it's in the parts box's.
if you do go in,, tell Eddie Bronco said Hi....
Member
Squid
Joined: Jun 2009
Posts: 35
From: Denver, CO
Thanks for the sugg. I ordered the part - the same as the back cylinder from ronayers, so I need to figure out what I need to do. Please don't tell anyone, I covered up the port with duct tape and went riding!!
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