Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums - Reply to Topic
Carbs and Fuel System
From the gas tank to the carbs
All fuel system discussion

Thread: Engine flooding with gas. Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
08-26-2017 05:40 PM
OleDirtyDoc sweet

Sent from my LGL34C using Tapatalk
08-26-2017 05:14 PM
wmdaricthompson Finally got out to riding! did about a 50 mile trip today, easing into the riding to suss out any remaining issues. Around 10 miles in I experienced surging and loss of power. Turns out I was running on one cylinder. I traced it back to the fuel line for the rear cylinder being kinked so no gas was flowing. A quick rearrangement, and the next 40 miles went smoooooothly. This is one sweet ride when it's running right!
08-18-2017 09:14 PM
OleDirtyDoc yup.I'm about 40 miles up RT.12

Sent from my LGL34C using Tapatalk
08-18-2017 09:12 PM
Originally Posted by OleDirtyDoc View Post
you obviously have not seen my bikes. I like em old and grungy

Sent from my LGL34C using Tapatalk
Decent chance you might get to see just how grungy my Vulcan is.... I've been putting a lot of effort into making sure it runs right, but not much into looks. My uncle has expressed an interest in buying it once it's mechanically done. He's in Binghamton.
08-18-2017 08:12 PM
OleDirtyDoc you obviously have not seen my bikes. I like em old and grungy

Sent from my LGL34C using Tapatalk
08-18-2017 07:57 PM
Originally Posted by OleDirtyDoc View Post
SWEET. good to hear.now stop holding out and put up some pics of that 1000

Sent from my LGL34C using Tapatalk
Oh just wait. Right now she's ugly with age and neglect. I've got the carbs cleaned up now though (pulling those was a walk in the park compared to getting them out of a VN750!), and I'm waiting on parts to seal up the air/fuel side of the engine. They are ordered, it's just that some are coming on the slow boat from Taiwan. Once I resolve my exhaust bolt situation (seriously, look how ugly it is), get those parts in, and a new battery, I should be just a hop, skip and a jump from making the engine cough, and hopefully roar.

In the meantime I'll be cleaning, checking valve clearances, and performing back maintenance that I'm pretty positive has not been done. 12,000 miles, and 38 years old. oy.
08-18-2017 07:39 PM
OleDirtyDoc SWEET. good to hear.now stop holding out and put up some pics of that 1000

Sent from my LGL34C using Tapatalk
08-18-2017 06:49 PM

The new carb bodies did it. I ended up switching almost all the guts from the damaged set over and just using the new carb bodies. That's all that was needed it turns out. I took a look down the emulsion tube hole, but I wasn't able to see any cracking or anything, but that is definitely what was going on. I still have some tuning to do, but now I can do so without risk of washing down my cylinder walls and gouging them. I'll have to do an oil change too before I ride too far since I've got my some gas in my oil. Maybe anyway, I sniffed at the oil fill area after letting it idle for a while (no white vapor! no white vapor!!), and I couldn't smell gas in the sump, so I'm wondering if it's volatile enough that I can burn it off with a little bit of riding.

I wouldn't have been able to bring myself to buy new carb bodies if ya'll here weren't as mystified by that behavior as I was, so you definitely helped me out. I feel vindicated now in not being able to get those old carbs to run right. There was simply no way they ever would. Those things were shot!

I need to renew my Vermont registration on the bike, and once I do, it will be street legal again and ready for some more riding!

Now time to hunt down some left handed drill bits... I have an exhaust bolt seized and broken off in the cylinder head of my Suzuki GS1000 that I need to bore out.
08-16-2017 09:01 PM
Spockster Should run great with clean, unmolested carbs. You're on your way now.

I always tell people, don't over-tighten ... jets, bowl screws, brake bleeders .... etc.

I lost a set of keys today, drove another 30 miles just to look for them, no luck. Going to try the forehead to drywall routine now.
08-16-2017 08:31 PM
Originally Posted by Spockster View Post
So the jet holders were over-torqued and bent, and broke that collar.

Tried to find a pic but didn't find any with the correct angle.

That's exactly what I'm saying. I won't be able to say for sure that's what's going on until I verify it's running right, but I'll do what I can in the post-mortem to get some decent pictures.

I wish I would have realized this right from the get go. It would have saved me a bunch of forehead shaped dents in my wall, and time. I just didn't have the experience with Vulcan carbs to realize until I saw both my old carbs with new tubes showing threads, and unmolested carbs showing threads.
This thread has more than 10 replies. Click here to review the whole thread.

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

For the best viewing experience please update your browser to Google Chrome