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Premium Member
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Discussion Starter #1
Had my first chance to ride since getting the problems straightened out.

With the new pipes, the ear shave, and the jetting, it is amazing how much more jump the bike has. I crack the throttle and the bike wants to jump out from under me. Amazing.

Still some tweaking to do.

Slight stumble cruising at part throttle, need to go back and check carb sync, mixture screws, and perhaps one more notch on the needles(little more fuel).

But this thing is much quicker than stock and so much more fun now!!!!!

Pipes sound like a big twin, fairly quiet part throttle or crusing, nice and loud when you get into it.

More tweaks tomorrow, a good cleaning, and I will put up some pictures.

Jon
 

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HAWK
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2,576 Posts
How long till the smile is off your face
 

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Premium Member
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Discussion Starter #3
How long till the smile is off your face
When I got to the end of my street and could go through 3rd gear, about 5 - 6 miles from there!!!

It is a night and day difference.

Its always fun when a big project gets finished (or almost) and it works out so well. 3 weeks ago my engine was on top of the Workmate and there were parts all over the garage.

Nows there's just a bike there that runs great.

Jon
 

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and the Adventure Cycle
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6,141 Posts
Great to here you're rollin' again Jon.


I'm finally getting close to teardown time myself. Will be ordering from Rick next week.
 

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Avid Rider
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Congrats, Jon, sounds like you are now qualified to be a certified Vulcan mechanic...:smiley_th. I'm wondering if the pipes/jetting made the biggest diff. in the performance, and how much everyone thinks the ear shave helps? Thx for any opinions here.
 

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Uber Member
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1,280 Posts
ear shave wont give much if any boost on performance (just faster throttle response cause a shorter intake), but the big gain here is in the jetting, and possiably in the pipes. u said u have a set of MAC's? right. our engines typically are already on the lean side, so with the rejet, you might have picked up a full 2-5 hp. which on a bike that weights in at 500 someodd lbs, that is rather significant. I dont have any information on the pipes though as to if there is any gain there, but typically with aftermarket pipes, low rpms drags, but high rpms rock compared to stock.

Glad you got it all done and its running great congrats!!! can you do me a favor once u get some decent riding in and tell me the diff in your fuel mileage with the new jets? i use mine as a commuter, and if its a loss of 1-3 mpgs for the boost in power, i'll take it!
 

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Registered
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158 Posts
Jon,

Glad to here to mods that you did made such a big difference. I am just waiting on some $$$ to do the ear shave, rejet, and degoat on mine. I am hoping that I am happy with my bike as you are with your when I'm done.
 

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Premium Member
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Jon, with the rejetting, are you still noticing a power lag in low rpms, or did that take care of it? After my degoating experience and the macs, I'm not inclined to go that route again; but if changing the jets helps, I may reconsider.
 

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Discussion Starter #9
Jon, with the rejetting, are you still noticing a power lag in low rpms, or did that take care of it? After my degoating experience and the macs, I'm not inclined to go that route again; but if changing the jets helps, I may reconsider.
Cindy -

This thing makes way more power all across the rpm range. I used to forget about passing on the interstate going 75mph as I knew it would be a slow process. Now, twist throttle, up to 85 - 90 in a flash.

Low end is much, much better than when it was just degoated. I felt the loss so badly after degoating that I was going to regoat.

I can't say for sure how much is re-jetting helping the pipes (degoat), or how much re-jetting & the ear shave is helping.

I am going to add one more shim as it has a slight stumble, hesitation while cruising at part throttle. That will be 4 shims under each needle.

Saturday I was getting on the interstate via a 2 lane on ramp. I felt like seeing what it would do and passed an Infinity that did not want me to before the end of the ramp (about 90 mph). This would have never happened before.

I think as others have said (Hizzo for one) that the stock jetting is just too lean. Probably related to EPA and gas mileage concerns.

Get your carbs straightened out?

Jon
 

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Premium Member
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Discussion Starter #11
Congradulations on your success.....
Thanks!

The bike runs now like I alwyas hoped it would.

Electrical system should be good for loads of miles now (I hope).

Nothing left to do but enjoy riding!

Jon
 

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Premium Member
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I think as others have said (Hizzo for one) that the stock jetting is just too lean. Probably related to EPA and gas mileage concerns.

Get your carbs straightened out?

Jon
I think they do run a little lean - I'll be interested to see what your mpg is after all the changes. The ear shave may be a big component in the pick-up as well. hmmmm. Of course, I just ordered new hoses for air surge tank, etc. so I guess I'd better run with that for awhile yet.

I'm gonna pull the bracket off the carbs tonight and try it again. I don't have 'em on the bike yet, so it's not a big deal disassembling and giving it another shot. Just wish I could figure out why I have an extra washer... :confused:
 

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Discussion Starter #13
I think they do run a little lean - I'll be interested to see what your mpg is after all the changes. The ear shave may be a big component in the pick-up as well. hmmmm. Of course, I just ordered new hoses for air surge tank, etc. so I guess I'd better run with that for awhile yet.

I'm gonna pull the bracket off the carbs tonight and try it again. I don't have 'em on the bike yet, so it's not a big deal disassembling and giving it another shot. Just wish I could figure out why I have an extra washer... :confused:
Cindy -

As far as I see (http://tinyurl.com/ydj3sk), there are only 4 parts to the starter plunger.

559117-001 CAP-STARTER PLUNGER (16012A)
559118-001 CAP-STARTER PLUNGER (16012)
559250-001 PLUNGER,STARTER (16016)
632663-001 SPRING,STARTER PLUNGER (92081A)

Which one of these did you wind up with an extra of?

Jon
 

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Premium Member
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3,505 Posts
Cindy -

As far as I see (http://tinyurl.com/ydj3sk), there are only 4 parts to the starter plunger.

559117-001 CAP-STARTER PLUNGER (16012A)
559118-001 CAP-STARTER PLUNGER (16012)
559250-001 PLUNGER,STARTER (16016)
632663-001 SPRING,STARTER PLUNGER (92081A)

Which one of these did you wind up with an extra of?

Jon
Hey, Jon - It's not the plungers per se, but the rod that attaches between the brackets that attach to the plungers...that live in the house that Jack built. :blah: But I got it figured out tonight - the rear bracket just can't be torqued down or it binds the movement of the bracket (and thus the plunger). So I put my extra plastic washer back there, cinched it down - but not too tightly - and it seems to be working fine. ?? I'll play with it a little bit before I install it back on the bike - just to make sure that screw's not gonna come out. In fact, maybe I should lock-tite the screw in that "light" position.

Let's just say I'm not quittin' my day job anytime soon. :D
 

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and the Adventure Cycle
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6,141 Posts
In fact, maybe I should lock-tite the screw in that "light" position.

Let's just say I'm not quittin' my day job anytime soon. :D
Glad ya got it figured out.
Does the screw look like it might be the stock one?
Maybe the previous owner put a too-short one in there, and the stock one maybe bottoms out before it gets too tight?
Just a thought :blah:
But definitely use the Loc-tite !
 

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Premium Member
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3,505 Posts
Glad ya got it figured out.
Does the screw look like it might be the stock one?
Maybe the previous owner put a too-short one in there, and the stock one maybe bottoms out before it gets too tight?
Just a thought :blah:
But definitely use the Loc-tite !
That's an interesting thought - maybe I can hit Home Despot and play around with different lengths to see if I can get something that fits better (threadlock not withstanding!). There are so darned many weird things on this bike - frozen bolts, jury-rigged attachments - that I'm willing to consider just about anything as a possibility. That said, however, once the new air hoses show up and the new-used radiator, I should be ready to fire 'er up and see what damage I've done!! (Secretly, I wanna be like Jon...only I don't want to do 90 mph on a freeway!!)
 
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