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Old 09-17-2013, 06:19 PM   #9466
turbo3x
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oversize pistons

Pistons come with rings and will sell for around $100.00
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Old 09-18-2013, 05:08 AM   #9467
KamperBob
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Quote:
Originally Posted by turbo3x View Post
Pistons come with rings and will sell for around $100.00
I'm curious about the jug over bore side of this mod. What's the skinny on that? :b
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Old 09-18-2013, 05:25 AM   #9468
GlennR
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Quote:
Originally Posted by KamperBob View Post
I'm curious about the jug over bore side of this mod. What's the skinny on that? :b

I was wondering the same thing. What's it cost of get it bored & re- Nicosil coated?
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Old 09-18-2013, 02:13 PM   #9469
turbo3x
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over bore

If you have an older machine with steel liner it's possible to get a maximum over bore to 73mm (241cc).
It requires a good machine shop that can keep the bore
centered.
If you have plated cylinders - I don't have any info for that.
I have purchased Yamaha ATV steel lined cylinders on Ebay for as little as $25. shipped. Some models are
stock 70mm and later models stock 71mm

Presently you can get special ordered 72mm from TKRJ Piston Company in Japan. It does require some language translation to order. (they also make .25mm - .50mm - .75mm and 1.0 starting from std 70mm)
I am presently communicating with an Ebay seller/TKRJ dealer to stock the 72mm size.

Presently I am unaware of anyone making any piston over 71 mm that aren't the lower 8.7-1 dish dome style.

I'm slow on the keyboard but will gladly try to answer any other inquiries .


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Old 09-18-2013, 03:24 PM   #9470
deodom
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Re Nicasil option

Quote:
Originally Posted by GlennR View Post
I was wondering the same thing. What's it cost of get it bored & re- Nicosil coated?
Here is one option. Check out their site and call them with any questions:
http://www.usnicom.com/price.asp
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Old 09-18-2013, 07:35 PM   #9471
woofer2609
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Location: Extreme Pacific SouthWest (of Canada)
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Originally Posted by Tom S View Post
I know of no reason to believe that.
I was curious in this application (air cooled higher mileage engine) because synthetic has a much lower viscosity (flow rate?) at start up temperatures I thought it might be seeping past the rings until operating temperature is reached, leading to increased consumption. I am definitely using oil between changes. I really do notice the improved mileage and much easier cold starts w/ synthetic, however. I'm still trying to understand this synthetic thing, but may switch back to see if it indeed the oil, or this engine is getting tired. (not worried too much now that there is talk of oversized pistons, however!)



Quote:
Originally Posted by Speedo66 View Post
My speedometer stopped working after a 225 mile mostly dirt ride.

I checked the cable and it looked good. Then chucked it in a drill and reverse showed the speedometer itself was working fine.

Thanks to your post I took the wheel unit apart, tough to do without a pair of snap ring pliers. Same condition, loaded with brown crap. Cleaned it all out and checked the parts. The brass ring that engages the wheel was a little bent. Hammered it back to flat and threw some wheel bearing grease in there.

Your photo saved me, didn't remember the order things went back in, with the grease I couldn't see the flats on the gear and the brass ring.

It didn't seem like I did very much, but when reassembled, a quick run showed the speedometer was working again.

Thanks for your excellent write up and pictures!
Glad to help! I did have to take it apart one more time to reshape the 3 pronged "thingy", but that really did the trick.
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Old 09-18-2013, 09:39 PM   #9472
Tom S
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Quote:
Originally Posted by woofer2609 View Post
...because synthetic has a much lower viscosity (flow rate?) at start up temperatures ...
No, if it is, say, 10/40, it's 10/40. Whether its synthetic or 'dyno' oil the viscosity is the same.
It's just that synthetic doesn't flow like molasses when it's real cold. That's real important up here.
Been using synthetic for many, many years in cars & bikes. Only way to go as far as I am concerned.
Never noticed any difference in gas mileage or anything else.
You say your bike has high miles? I think maybe it's just starting to use oil.
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Old 09-19-2013, 06:46 AM   #9473
Speedo66
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Quote:
Originally Posted by woofer2609 View Post

Glad to help! I did have to take it apart one more time to reshape the 3 pronged "thingy", but that really did the trick.
Yeah, the flats on that 3 prong piece that engage the gear are pretty worn, don't know why they used a soft metal like brass for that application. Lots of play there. I have a feeling it's going to go again soon, may have to file new flats in it.

My last set of snap ring pliers were 30 year old J.C Whitney crap, which I threw away last year. I'm hesitating buying some from Harbor Freight for the same reason.
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Old 09-19-2013, 10:07 AM   #9474
woofer2609
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Quote:
Originally Posted by Speedo66 View Post
Yeah, the flats on that 3 prong piece that engage the gear are pretty worn, don't know why they used a soft metal like brass for that application. Lots of play there. I have a feeling it's going to go again soon, may have to file new flats in it.

My last set of snap ring pliers were 30 year old J.C Whitney crap, which I threw away last year. I'm hesitating buying some from Harbor Freight for the same reason.
That's what I noticed when I took out my 3 pronged thingy the second time, the flats had started to round out. I squeezed it in a vice and it really helped correct the shape. It seems to mate up properly now. I think the reason they went with the cheap soft steel is that it's cheap, and the second thing is it is the sacrificial lamb; it will bend before something else breaks, such as the speedo cable. Just my thoughts.
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Old 09-21-2013, 11:19 AM   #9475
Reposado1800
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Anybody else snapping Buchanan oversize spokes? I have had to replace 2 so far and it has been only street riding. It is a pain because I have to pull the tire to get at the nipple properly.
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Old 09-22-2013, 07:43 AM   #9476
Dirt2Street
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Quote:
Originally Posted by RebelHorse View Post
Use a Uni brand filter. I just got one and removed my snorkel. A decent difference in throttle response I noticed on mine with the good air flow.

I heard K&Ns are a no go as they are crap (so ive heard) But the Uni does great, and on the plus side they are alot cheaper than K&Ns.
Where can I find filters?
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Old 09-22-2013, 09:24 AM   #9477
dav_dman
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Originally Posted by Dirt2Street View Post
Where can I find filters?
+1 FTW on the Uni's...awesome filters and cheap.
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Old 09-22-2013, 09:31 PM   #9478
dghuppert
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Going to replace the battery. Any suggestions? Lithium? Gel?
Thanks.
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Old 09-22-2013, 11:51 PM   #9479
Crazy Canadian
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Got a new rack made by a local guy here in San Diego. The old one was giving the girlfriend issues when she was getting on and off, so it will probably be up in the for sale section shortly. As for this new rack, it isn't quite as giant as the old one but the grocery trip tonight proves it can carry just about as much.









Old rack...
http://www.advrider.com/forums/showp...postcount=7695
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Crazy Canadian screwed with this post 09-22-2013 at 11:57 PM
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Old 09-23-2013, 12:09 AM   #9480
Crazy Canadian
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Originally Posted by dghuppert View Post
Going to replace the battery. Any suggestions? Lithium? Gel?
Thanks.
If there is a cyclegear near you, they have a battery that includes a lifetime, unlimited mileage warranty and when it goes bad just walk in and they will give you a new one.
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