January 17th, 2017, 07:08 AM | #81 |
Guy Who Enjoys Riding
Name: Jim
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I asked about your 2-stroke experience because of starting and jetting. As subxero was saying, something is wrong if it doesn't start easily when warm, and once you get a good cold procedure, it should start almost as easily then.
I don't like the spoke sealing method in the link you posted. I like methods like the one that has you put a sticker over each nipple to keep sealer off, and then silicone over it all. Or the more expensive kit you can buy that gives you tape that covers all the nipples. The Seal-All method look like it will prevent you from being able to true the wheel, and even though it's a good product, it hardens a bit too much for that application. Like if a nipple gets jarred, its sealer may crack loose from the rim. Woody's Wheel Works has a video that shows how they seal wire spoked wheels. I can't remember if I found it on their site, or on YouTube, but it's worth taking a look at. I think it was a short segment in a longer video about their business. A lot of tubeless tires are also OK with tubes, but just don't say so in the literature. Check with the manufacturer. They usually have a statement that says all their tires are OK with tubes, or all except particular lines are OK with tubes, etc.. |
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January 17th, 2017, 07:15 AM | #82 |
dirty boy
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do they make tubliss systems for smaller wheels? I know you can get them for standard 18" 19" and 21" dirt wheels.
The tubliss system was also designed more for off road bikes to run super low PSI in the rear but can't see why it wouldn't work the same with 30 PSI give or take??? How big is your front wheel? https://www.google.com/webhp?hl=en&s...h%2C+supermoto
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January 17th, 2017, 07:30 AM | #83 |
dirty boy
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Something just occurred to me.... Where the hell are the pictures!?
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January 17th, 2017, 09:49 PM | #84 | |
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Then again, the security of my work space has drastically increased and I'm in a new location so I'll see what I can do. Thanks for all the help. I've learned that when you're doing stuff that typically hasn't been done before, and word gets out -- all kinds of intellectual leeches pop out of the woodwork and if they aren't overtly trying to duplicate the end result and take credit for it, they're trying to undercut the 'idea' man and stand on the shoulders of giants. Lol sorry about the metaphors.
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January 17th, 2017, 10:02 PM | #85 | |
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January 17th, 2017, 10:46 PM | #86 | |
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January 17th, 2017, 10:53 PM | #87 | |
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More stuff to study.
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January 18th, 2017, 06:19 AM | #88 | |
dirty boy
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As far as starting i don't ever mess with tipping the bike over. Turn the fuel on, put the kicker through a few cycles to get some fresh air in the system, hold the throttle open a little and cycle it another 2 times or so. Then put piston just past Top dead center, return kicker to start position and give it a sharp kick. see what year the engine is and if anything was done to it. I believe the 94-01 engines had a wide ratio tranny. 89-93 was the exact same engine but with a closer ratio tranny. Lots of people swap the 94+ WR tranny into the 89-93 engines so it helps to know what was done to the engine and there were actually some really nice aftermarket WR transmissions available at one point, most are long gone and snatched up but once in a blue moon one will pop up for sale here or there.
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January 18th, 2017, 08:15 AM | #89 |
Rev Limiter
Name: Jay
Location: WI
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If it doesn't seem to be running right, I would look into the carb to see if it's the original size and type.
When I got my Derbi it had a much larger Mikuni Flatside on it, and the jetting wasn't even close. It was so rich in the midrange it wouldn't even run when it hit 1/2 throttle. I had to replace all the jets - the needle jet, jet needle, and Pilot jet, and Main jet. If that's the correct carb I would confirm that all the jets are correct, and maybe replace them all with new of the original size so you have a good starting point. Sometimes people drill out the jets, so you don't always know if they are what they should be. Most likely you will need to re-jet, but starting from the original sizes would give you a good starting point for your tuning. Be sure to run the same gas (ethanol-free if you can get it) and the same oil and ratio the entire time. Running in the 32:1 or 40:1 ratio isn't a bad idea, and even though it seems odd, more oil can give you more power (and more engine life as well). That bike should be a blast when you get it all dialed-in. Back in the day I had a CR125 and a RM125. My first street bike was a RD400, and then a RZ350. For sheer riding thrills, it's hard to beat the explosiveness of a good running 2-stroke coming on the pipe. I don't think you need to try to restrict it in any way, just keep your wrist in check! |
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January 18th, 2017, 05:45 PM | #90 |
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Ghetto style: gorilla tape and sealant. Many many MTB tires have been run tubeless this way, it also works for dirt bikes.
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January 18th, 2017, 08:52 PM | #91 | |
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For supermoto, my advice is to use tubes with spokes, use mag wheels (the newer Warp 9 mags are a good value), or the coolest but most expensive option, Alpina tubeless rims. Mmmm....
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January 18th, 2017, 10:36 PM | #92 |
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Pictures incoming
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January 19th, 2017, 08:27 AM | #93 | |
Fighting Texas Aggie '05
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January 19th, 2017, 08:46 AM | #94 |
Guy Who Enjoys Riding
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I guess the flashing orange and black is to distract competitors.
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January 19th, 2017, 10:04 PM | #95 | |||||
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They definitely are eye-catching wheels.
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January 19th, 2017, 11:07 PM | #96 |
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Pictures!
#1 -- it's here! #2 -- and it's mine. #3 -- happy friday 13 #4 -- one, two, four. #5 -- decompression valve
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January 20th, 2017, 05:25 AM | #97 |
dirty boy
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^ Sweet! Can't see the carb in that one picture otherwise I could probably tell you what it is, the other pipe is blocking it.
Looks like the Expansion chamber pipe is cracked, it's fairly common with the pro circuit pipes. Just judging by what looks to be burnt 2t oil on the pipe. Should be a fun bike, they are really easy to work on which is great, 500's don't have a power valve so that is one less thing to take apart/disconnect/clean ect... Another nice thing is that as of a couple years ago there has been some nice aftermarket parts coming out here and there for the old 2 strokes. One of my favorites is a cnc exhaust flange manifold that has the newer design with a few rubber orings to help seal it up at the jug expansion chamber junction. Way better than the original. Made my MSV racing.
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January 20th, 2017, 01:15 PM | #98 | |
Guy Who Enjoys Riding
Name: Jim
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Quote:
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January 20th, 2017, 09:29 PM | #99 | |
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I'm stoked that I scored an aluminum frame hybrid. 97 was the first year that the 250 had an aluminum frame and it's waaay over engineered in terms of strength. It should handle some serious flogging. I always knew it had more to do with function than appearance. Good info, as always jim.
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January 20th, 2017, 09:39 PM | #100 |
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More pictures...
#1 -- is that a transmission case oil filler plug I see? The stripped out aluminum socket-head part with knurling on the sides.. Also note the dent in the kicker and the two bent over teeth on the peg. #2 -- carb #3 -- 491cc... and that's a cat hair, it's not a hairline fracture in the cylinder jug. #4 -- crusty engine and frame. This machine is gonna take a bit of cleaning and work before it looks like the black one posted further up in the thread. #5 -- 17 * 3.50 wheelset for the trainer bike. Not finished yet, waiting for parts.
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January 20th, 2017, 09:46 PM | #101 |
Guy Who Enjoys Riding
Name: Jim
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That's funny. A friend of mine makes reed kits for the old Kaw triples. Whenever I get parts from him they come covered in cat hair. If I mention it, he tells me there's no extra charge for the hair.
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January 20th, 2017, 09:47 PM | #102 |
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more pics..
#1 -- electric starter setup which is available but outside my price range. #2 -- canadian company panthera #3 -- people have done some wild things with these bikes. #4 -- inspirational #5 -- I don't even.... is that a snowmobile?
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January 21st, 2017, 07:26 PM | #103 |
dirty boy
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Carb has the vertical Keihin lettering, It is a PJ carb, probably the original 38mm Keihin PJ
Not the most liked carb. They work but there are better. I have a 39mm pwk. Lots of people really like the 38mm keihin airstryker, (newer model) Oil down the stator cover?? would have to come from above the cover, it probably blow off from the head pipe, or base cylinder gasket but probably the pipe. I have my 500 engine completely stripped right now for a full rebuild, crank and all. I just sent my jug out to get bored. I hope they can clean up the cylinder with the available overbore.
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I love the smell of burning pre-mix in the morning I don't think I'm a lot dumber than you thought that I think that I thought I was once. Last futzed with by subxero; January 23rd, 2017 at 05:44 AM. |
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January 22nd, 2017, 09:15 PM | #104 | |
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January 23rd, 2017, 05:54 AM | #105 |
dirty boy
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https://www.ninjette.org/forums/showthread.php?t=255937
for get'in dirty. I have a far more interesting project for the street. Someday I might actually finish it Lack of progress can be seen here. It is more of a funds issue than anything though https://www.ninjette.org/forums/showthread.php?t=200016
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I love the smell of burning pre-mix in the morning I don't think I'm a lot dumber than you thought that I think that I thought I was once. |
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January 23rd, 2017, 10:44 PM | #106 | |
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As for the 500, I'll pm you about it. I've got a few questions. Thanks for the help, wish I could spend more time on this project but I've got a lot going on with work at the moment.
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