Recent Posts

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91
The Thumper Years: Stock To Lightly Modified / Part left over after build
« Last post by jh628 on September 01, 2017, 06:02:31 AM »
I bought my 82 FT500 about three years ago for the express purpose of learning more about engines.  I figured a single cylinder engine was about as simple as they came.  As soon as I got the bike home I started to completely disassemble it.  I soon discovered a completely worn out starter pinion gear.  After finding what replacements were going for on ebay, I put the project on hold for a while.

I eventually found and bought a replacement pinion gear in pretty good shape.  That was probably 2 years ago, but I am just getting back to the project now.  About 2 weeks ago I finished the engine tear down by splitting the crankcase.  When I started the disassembly 3 years ago, I cleaned and carefully bagged and labeled all of the parts as I removed them.  I continued with this practice through the remainder of the work.  I bead blasted all of the engine parts and clear coated them before starting to reassemble the engine.  I will attach a picture of the engine with the flywheel holder I made.

I have the thing almost completely built, but have just discovered a part I canít find a place for.  It was in the bag I had placed the parts for the oil pump and a few other things.  I canít find anything that looks like it in the shop manual.

Does anyone know what this thing is?  Is it possible it is a stray part from a different project?  I am pretty sure I missed a couple of steps getting the balancer timing right, so I am going to have to do some disassembly anyway.
92
The V-Twin Years: Stock To Lightly Modified / Re: 1984 Ascot mild project
« Last post by scott s on August 29, 2017, 05:07:25 AM »
 I just ordered a replacement petcock. I'll loose the vacuum assist, but I don't care. I think I'm going to try replacing the petcock, flushing/rinsing the tank while it's off and running some Seafoam through the carbs. Can't hurt and easier that pulling the carbs again.
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The V-Twin Years: Stock To Lightly Modified / Re: 1984 Ascot mild project
« Last post by murdo on August 29, 2017, 12:49:56 AM »
Looking great.
The petcock can be rebuilt if you drill the rivets out and thread the holes with 3mm and put small screws in to hold together.
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The V-Twin Years: Stock To Lightly Modified / Re: 1984 Ascot mild project
« Last post by scott s on August 28, 2017, 02:43:14 PM »
 Got the fairing and bodywork back from the painter. He buffed out the original paint and color matched the fairing. Looks really nice, I think.
 The petcock is leaking behind the selector lever, but only when in ON or RES, not on OFF. It's a riveted type and I don't know if they're rebuildable or not. Also, while the bike ran great on the IV bottle, I think the slow jet in the rear carb is now plugged. Doesn't want to run on that cylinder at idle and there's a big surge of power when I get above the pilot jet circuit. Guess I'll be tearing this thing back down to remove/rebuild/replace the petcock and clean the carbs one more time.....GRRR!






95
The Thumper Years: Stock To Lightly Modified / Re: Considering an Ascot
« Last post by grcamna2 on August 26, 2017, 06:58:11 PM »
Looks like it's in decent shape, what's up with it? Did you buy it?

Let's hear from you Scott  :)
96
The V-Twin Years: Stock To Lightly Modified / Re: New needle for carburetor?
« Last post by J6G1Z on August 25, 2017, 06:30:58 AM »
I ended up buying a Dynojet kit that was just stage 1. (so it should be OEM specs) that one specifically said it came with new needles which is what i really need.
after looking at it for a bit I think one of the previous owners already installed one of these kits. which makes me wonder how the needle broke in the first place?
The inside of the carb is spotless, I can see through all the jets i have pulled.

Is there some why the jets could be misaligned that would cause the needle to break? I would hate to put it back together only to have it break again.

I used a Dynojet kit on one of my VT Ascots. I no longer recall what the kit consisted of. I had to contact the company a few times for larger jets than the ones in the kit. To be fair, my bike had a custom dual exhaust & air-box modifications. I've heard that the kits sold on eBay are more extensive & custom tailored to each application, but I don't have any personal experience with them.

I can't think of any way that a needle could break during normal carb functioning.

Be careful/gentle upon disassembly & reassembly. The front & rear carbs have a few slight differences, so keep the parts separated. Been a long time & I can't recall the details any longer. Typically the rear cylinder main jet is larger than the front.

Good luck
J.

PS. The Dynojet kit has needles & jets that are specific to each other. You cannot mix the Dynojet needles with other manufacturers jets & vice versa.
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The V-Twin Years: Stock To Lightly Modified / Re: New needle for carburetor?
« Last post by Nal0x0ne on August 25, 2017, 06:18:06 AM »
I ended up buying a Dynojet kit that was just stage 1. (so it should be OEM specs) that one specifically said it came with new needles which is what i really need.
after looking at it for a bit I think one of the previous owners already installed one of these kits. which makes me wonder how the needle broke in the first place?
The inside of the carb is spotless, I can see through all the jets i have pulled.

Is there some why the jets could be misaligned that would cause the needle to break? I would hate to put it back together only to have it break again.
98
The V-Twin Years: Stock To Lightly Modified / Re: New needle for carburetor?
« Last post by J6G1Z on August 24, 2017, 08:39:21 PM »
99
The V-Twin Years: Stock To Lightly Modified / Re: Help finding new Head stud
« Last post by Nal0x0ne on August 24, 2017, 02:47:18 PM »
So I ended up going with the generic stud I found on amazon and it worked perfectly. Now if I can only solve my carburetor troubles  :'(
100
The V-Twin Years: Stock To Lightly Modified / New needle for carburetor?
« Last post by Nal0x0ne on August 24, 2017, 02:14:00 PM »
just rebuilt my engine and now the bike doesn't want to start. The engine was moving, the spark plugs were firing, and fuel was leaking out onto the ground from the carburetor. So i removed the carburetor and took the whole thing apart, and the only thing that I can see is wrong with it is that one of the needles is a little short. When you look at the tip its obvious that it has broken off.
I cannot for the life of me find a replacement.
I have not done any carb work before so I'm not sure if I am just overlooking something. I have managed to find out that it uses Keinhin 1NH and 1NE needles, but all I can find is a sketchy used pair on ebay.
Is there away to get the measurements and find an equivalent?
Any ideas are welcome.
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