http://forum1.aimoo.com/XLBoardAimoo CityAimooen-USAimoo http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1669490/GoToTopic.html vanrooster 2009-11-21 10:39:59.863 XL 350 My 1977 XL350 has been having a strange problem that I believe is rooted in the carb.  I've long suspected a vacuum leak, but I've been unable to locate one.  When warm, the engine doesn't want to come down from high revs.  Even if I bring them down using the compression of the engine http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1669127/GoToTopic.html sixdayguy 2009-11-20 22:39:22.597 For Sale/Wanted - Not on eBay! Only here! This is a another project that I dont have time to finish. It is a 74 honda xl175 engine. I hade a 74 cr250 and a 74 xl175 frame, when I compared these frames I was surprised how similar they were. I decided to cut up both frames using the engine cradle out of the xl frame with the rest of the cr fr http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1669112/GoToTopic.html sixdayguy 2009-11-20 22:22:57.287 For Sale/Wanted - Not on eBay! Only here! I have a very clean low mileage 74 honda xl 350 engine & a champion side port mx frame&swing arm. I was going to build up an AHRMA MX bike, but I just dont have the time. So if anyone is interested in this project let me know. I would sell it very reasonable, make me a offer.Thanks John.&nbs http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1668977/GoToTopic.html BikerMike 2009-11-20 18:22:26.817 XL 250 Hi, I have removed the complete air box / filter, and replaced it with a filter that mount direct to the mouth of the carb.Can anybody advise me if I need to fit larger jets.Regards,Mike http://forum1.aimoo.com/XLBoard/ReplyID-6689093/TopicID-1665709/GoToTopic.html brettzilla 2009-11-20 11:40:39.083 XL175 / XL185  thanks i'll do my best. http://forum1.aimoo.com/XLBoard/ReplyID-6688528/TopicID-1667873/GoToTopic.html 350s 2009-11-20 10:14:49.567 XL 250 Kyle, Had to stay home. Played to much last summer, got to work and pay for it now. The young pro classes looked big but the others didn't seem to have very many in a class. OK Russ, your welcome. Pat.  http://forum1.aimoo.com/XLBoard/ReplyID-6686966/TopicID-1667873/GoToTopic.html Russ447 2009-11-20 06:59:52.333 XL 250  Thanks for the replies.  All wires are re-conected at the moment and I'll go back to the drawing board.  I'll post up whatever I end up with.Russ http://forum1.aimoo.com/XLBoard/ReplyID-6684153/TopicID-1667873/GoToTopic.html Kyle44x 2009-11-20 01:42:37.27 XL 250 Hey Pat... Thought I might see you last weekend at Lincoln. Did  you go?Kind of a slick track, like polished glass by the end of the night. I could have used some ice screws in my front tire... sure spooked me when it started sliding! Huge turnout though.Take care,Kyle http://forum1.aimoo.com/XLBoard/ReplyID-6683268/TopicID-1667873/GoToTopic.html 350s 2009-11-20 00:21:08.347 XL 250 There ya go. Trade and you both have the correct set up for what you like to ride. Freight might get in the way[cost]. Pat Orman. http://forum1.aimoo.com/XLBoard/ReplyID-6683074/TopicID-1411036/GoToTopic.html Kyle44x 2009-11-19 23:58:10.347 XL 350 Gride2, Nice job on the bike! I'm kind of new to these xl/xr hondas, but I'm working on a project racer and really like what you did. Do you live around the KC area? I saw you raced the vintage mx in KC... I'm in NE Kansas.Kyle#44x http://forum1.aimoo.com/XLBoard/ReplyID-6682909/TopicID-1667873/GoToTopic.html Kyle44x 2009-11-19 23:38:28.55 XL 250 I run a lightened flywheel and the the ignition is lightened up as well... I don't know if its feasable for you to do, but my crank end was converted to use a motoplat ignition. Very light and likes to rev.[IMG]http://i17.photobucket.com/albums/b79/verticaltwin/baddestxr250EVER.jpg[/IMG]Kyle#44x http://forum1.aimoo.com/XLBoard/ReplyID-6678251/TopicID-832909/GoToTopic.html Swiss 2009-11-19 11:56:43.343 AHRMA Racing - Vintage Offroad & Roadrace What kind of speeds have you seen with your engine mods so far?  What rpms will it run in your testing?  Any glitches or problems with the power curve?Swiss http://forum1.aimoo.com/XLBoard/ReplyID-6678013/TopicID-1665709/GoToTopic.html orcabee 2009-11-19 11:26:26.577 XL175 / XL185  they're all color coded.......remove/swing open the sear. Shut off gas, remove hold down bolt, remove battery cover.........most important, have a schematic. There are some wires in the harness that are not used. http://forum1.aimoo.com/XLBoard/ReplyID-6677789/TopicID-1667873/GoToTopic.html 350s 2009-11-19 11:00:44.843 XL 250 Those CDI's are AC current not DC. The XRmodel had the lightest rotor but not a great difference. I've adapted one of those ignitions for pit bikes[rotor is only about 50mm in dia.]and a couple other types onto earlier XL's but takes a "bit" of work. Maybe PVL makes a CDI for those as the http://forum1.aimoo.com/XLBoard/ReplyID-6677434/TopicID-1665709/GoToTopic.html brettzilla 2009-11-19 10:08:03.95 XL175 / XL185  how do i know which connections go to which plugs? i mean, at the front end i got the light, horn, turn signals, etc. how do i know which one to plug into which part of the harness? oh ya, and after re-reading your answer, i saw that you already answered my question about dismantle. tank only! http://forum1.aimoo.com/XLBoard/ReplyID-6677336/TopicID-1665709/GoToTopic.html brettzilla 2009-11-19 09:52:53.983 XL175 / XL185  thanks it sounds pretty straight forward. is it easier with the seat and gas tank removed? or is it a side access job? http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1667873/GoToTopic.html Russ447 2009-11-19 07:13:51.687 XL 250 I know it isn't strictly speaking an XL, but I am a bit stuck and thought this would be a good place to ask.I have a CB250RSA that I use as a sand racing bike.  As it is a race bike I have taken the charging system/battery off the bike.  The alternator output originally had 3 x yellow wire http://forum1.aimoo.com/XLBoard/ReplyID-6675841/TopicID-1618896/GoToTopic.html English Phil 2009-11-19 06:48:26.857 XL 250 http://www.carlsalter.com/motorcycle-manuals.aspHeres a great link for manuals for loads of bikes, all free. It lists the XL500 which could have a similar set up,Phil http://forum1.aimoo.com/XLBoard/ReplyID-6675771/TopicID-1618896/GoToTopic.html English Phil 2009-11-19 06:43:21.403 XL 250 http://myfiles-express.com/search.php?search=free%20honda%20xl250%20service%20manualTry this for the manual.As Swiss and Pat say, make sure the battery you use is healthy, i.e.  around 6.5 volts. One sure way of killing the reg/rectifier is running with a duff battery over a period of time. Wit http://forum1.aimoo.com/XLBoard/ReplyID-6675665/TopicID-832909/GoToTopic.html generatorshovel 2009-11-19 06:37:19.967 AHRMA Racing - Vintage Offroad & Roadrace 2010 SPEED WEEK - 8th - 12th March 2010. Swiss.There's going to be 2 tracks next year (if we can get the man power to set up etc ) the new track will be 3 miles total, with 1 mile run up, but, GPS speed logging only, and no new records can be set using this track.The idea behind the 2 tracks is to l http://forum1.aimoo.com/XLBoard/ReplyID-6673383/TopicID-832909/GoToTopic.html Swiss 2009-11-19 02:55:54.03 AHRMA Racing - Vintage Offroad & Roadrace Tiny, when is your race season for the top speed run?Swiss http://forum1.aimoo.com/XLBoard/ReplyID-6669251/TopicID-832909/GoToTopic.html generatorshovel 2009-11-18 17:52:40.78 AHRMA Racing - Vintage Offroad & Roadrace Speedy, what did you end up using in your engine ? did you go with the CRF bits?I finally have evrything I need to complete my rebuild / oil feed re-route / repair.I found some ultra hi pressure stainless 5/16 tube to machine a new big end feed from, no more risk of snapping the end off due to the I http://forum1.aimoo.com/XLBoard/ReplyID-6668176/TopicID-1665709/GoToTopic.html orcabee 2009-11-18 15:03:54.95 XL175 / XL185  The main harness should terminate at the front forks on one end and the battery area on the other.  There will be multiple plg-ins at these points.....to the stator, to the battery, to the rear fender lamps etc. All you should remove is yhe tank (1 bolt).  There should be a few routi http://forum1.aimoo.com/XLBoard/ReplyID-6667839/TopicID-1618896/GoToTopic.html Swiss 2009-11-18 13:48:31.373 XL 250 Take the battery to a local car parts shop and ask them to check it, or try Wal Mart and see if they will check it.  That is normally free.  IF you have a bad cell or two in the battery, it will definately affect everything else by sinking all of your power to the internal short.SwissThe t http://forum1.aimoo.com/XLBoard/ReplyID-6663381/TopicID-1618896/GoToTopic.html makenzie71 2009-11-18 03:52:16.187 XL 250 I've charged the battery but the charging voltage is only 3.5vdc...so it doesn't stay charged. http://forum1.aimoo.com/XLBoard/ReplyID-6663047/TopicID-1618896/GoToTopic.html 350s 2009-11-18 03:25:54.483 XL 250 I don't know why a good or bad battery would affect the charging either but evidently your battery is bad[or discharged]or it would light everything too. Have you tried putting a different[proven good]battery in and see if charge will stay up? Pat. http://forum1.aimoo.com/XLBoard/ReplyID-6661509/TopicID-1618896/GoToTopic.html makenzie71 2009-11-18 01:01:45.03 XL 250 I know that when I hook up a 6v power source up everything works with the bike off.Output from the stator shouldn't change between a good battery and a bad battery, would it?  Unless the battery has a bad short in it.  I suppose I can disconnect the battery and hook up the trickle cha http://forum1.aimoo.com/XLBoard/ReplyID-6661149/TopicID-1618896/GoToTopic.html 350s 2009-11-18 00:26:38.327 XL 250 You said it has a "divorced" regulator/rectifier, as in 2 seperate units? The stock unit is all one. Maybe the regulator is not "letting" it charge enough. Put a good battery in, disconnect the regulator and rectifier, start up and check stator output. Pat. http://forum1.aimoo.com/XLBoard/ReplyID-6661090/TopicID-1618896/GoToTopic.html 350s 2009-11-18 00:21:47.873 XL 250 Then it must be the regulator/rectifier or the battery. When you hook a hot battery up, does everything work? Pat. http://forum1.aimoo.com/XLBoard/ReplyID-6656948/TopicID-1618896/GoToTopic.html makenzie71 2009-11-17 13:15:35.797 XL 250  The issue is that there is not enough voltage to keep the battery charged nor run the turn signals.  Voltage at the lights and battery do not go over 3.5vdc at any RPM.  I've put in a different stator and got the same results.  So, I'm trying to find other areas that may also be http://forum1.aimoo.com/XLBoard/ReplyID-6656812/TopicID-1618896/GoToTopic.html 350s 2009-11-17 12:41:03.0 XL 250 The stator on those bikes is 3 seperate coils. 1 the ignition coil for ignition only, 2 the headlight/running lights coil for lights only and 3 the charging coil for charging the battery only. The battery is for running the tail light, brake light etc when riding and for emergency lights w http://forum1.aimoo.com/XLBoard/ReplyID-6655320/TopicID-832909/GoToTopic.html Swiss 2009-11-17 08:54:23.107 AHRMA Racing - Vintage Offroad & Roadrace Speedy,Give me the specs that you have on your 125 and maybe we can see about thinking up some mods to help reach 100mph!Swiss http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1666411/GoToTopic.html makenzie71 2009-11-17 06:11:16.31 XL 250 First, when voltage regulators fail can they cause a drop in voltage?  What about a failing rectifier.I have an old XL250S.  It's a 6v bike.  It's only getting about 3.5vdc at the battery, though.  I put a different stator in and got basically the same result, so I'm finding it h http://forum1.aimoo.com/XLBoard/ReplyID-6649659/TopicID-1618896/GoToTopic.html makenzie71 2009-11-16 22:52:11.31 XL 250 Anyone else?Phil, would you mind posting a link to the site?  I didn't find one. http://forum1.aimoo.com/XLBoard/ReplyID-6646309/TopicID-1665228/GoToTopic.html 350s 2009-11-16 13:55:40.733 XL 350 Hey Swiss, That's the best term[monkey-motion]I've ever heard for the RFVC rockers. I thought Honda went off the deep end with that design. They obviously didn't agree as they used it for 20? years. Oh well, "ours is not to question why---. Pat. http://forum1.aimoo.com/XLBoard/ReplyID-6646255/TopicID-1665567/GoToTopic.html 350s 2009-11-16 13:43:48.717 XL 500 + Most Hondas are jetted very lean to meet EPA standards etc. Try cleaning the pilot jet and if still too lean put a little bigger one in. It might be OK if it will start on full choke and then run half choke till warm. My cold start procedure for Honda singles is; gas on, choke on[spark of cours http://forum1.aimoo.com/XLBoard/ReplyID-6646254/TopicID-832909/GoToTopic.html Franklin_Speedy 2009-11-16 13:43:46.763 AHRMA Racing - Vintage Offroad & Roadrace WoW.   looks like burt munro's gost is with you.   im happy to see a one off custom LSD small cc machine.since your last posting how is it coming along. i havent been on in along time. been working on some projects never got around to the web forms. I got near 90mph on my CB http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1665709/GoToTopic.html brettzilla 2009-11-16 09:55:20.607 XL175 / XL185 anybody know how hard it is to replace a wiring harness.?for instance, how far does one have to dismantle the bike in order to get the old one off and the new one on?its a 78 xl 175. all the electrical except what was needed to run the bike has been removed. all thats left is the harness, coil, and http://forum1.aimoo.com/XLBoard/ReplyID-6644395/TopicID-1665567/GoToTopic.html woosh 2009-11-16 08:48:21.7 XL 500 + This bike from what ive reead came jetted pretty lean from the factory and benefits from a slight rejetting. http://forum1.aimoo.com/XLBoard/ReplyID-6644202/TopicID-1660845/GoToTopic.html brettzilla 2009-11-16 08:24:10.2 XL125 thanks man. thats exactly what i did and now it runs like a dream. i would have done it earlier but the spark plug is metric and i only have standard wrenches. after i acquired the right socket, i got the plug out, cleaned it up, and it fired on the third kick. awesome! http://forum1.aimoo.com/XLBoard/ReplyID-6643559/TopicID-1665228/GoToTopic.html timer 2009-11-16 06:50:56.903 XL 350 Thanks guys. That makes a lot more sence.Kevin http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1665567/GoToTopic.html dutchbike 2009-11-16 06:14:48.03 XL 500 + Hi All,A month ago I picked up a '86 xl600r with 9K miles. It's pretty and runs fantastic....when warm. When cold, it's a beast! I know these bikes have a character when cold, but this is not good.I know the starting tricks on the bike and when warm, the bikes starts with a single, easy kick (when d http://forum1.aimoo.com/XLBoard/ReplyID-6641200/TopicID-1665228/GoToTopic.html Swiss 2009-11-16 01:42:51.373 XL 350 Just about all of the "Factory" quoted hp ratings are at the crankshaft with no gearbox/chain type of power losses.  The magazines test using rear wheel dynos so their numbers reflect the friction power losses of the bike.  Regardless, it is not possible to directly compare dyno testing do http://forum1.aimoo.com/XLBoard/ReplyID-6639350/TopicID-1665228/GoToTopic.html 350s 2009-11-15 22:35:19.403 XL 350 I didn't think the old ones were rated that high but probably amounts to INSURANCE rates[lower horsepower=lower rates]and smog control. Everything is a shell game these days. Pat Orman.  http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1665228/GoToTopic.html timer 2009-11-15 21:43:04.233 XL 350 Hi GangLast night while reading i found something i just cant understand. Can anyone help? In a original honda manual It mentions a 74 XL 350 to produce 30 hp at 7000 rpm & produce 21.7 ft lbs of torque at 6000 rpm. While looking in a May 1983 Issue of Dirt Rider I noticed it has the stats for a http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1665069/GoToTopic.html Westfalia 2009-11-15 16:33:57.42 For Sale/Wanted - Not on eBay! Only here! Looking for a good clean example.  Thanks.swharris@mac.com http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1664953/GoToTopic.html Squared 2009-11-15 13:51:10.827 XR's only! The Oroginal Honda Thumper Dirtbikes Here's a way to clean old fuel tanks that have sat for a while with fuel in them.  Crystal Drano and the highest strength liquid drain cleaner you can find at Wal Mart.  The drain cleaner must contain Sodium or Potassium hydroxide (Lye).  Pour in some Drano and a little bit of the liq http://forum1.aimoo.com/XLBoard/ReplyID-0/TopicID-1664952/GoToTopic.html Torino68 2009-11-15 13:50:17.78 XL 500 + I just found this site.  Looks great, full of good information.I just bought my 81 XL500s.  After a little cleaning it seems to run pretty well.  The tail light doesn't come on though.  The bulb looks good.  All the other lights are working fine.  I looked inside the he http://forum1.aimoo.com/XLBoard/ReplyID-6630446/TopicID-1653037/GoToTopic.html dutch105 2009-11-15 01:50:53.513 XL 500 + Well, based on that, I'm pretty sure I have a black hole bought.  http://forum1.aimoo.com/XLBoard/ReplyID-6629091/TopicID-1653037/GoToTopic.html sliderule 2009-11-14 23:33:53.983 XL 500 + WOW, i have had a similar problem with my 79xl500. it rides fine for the most part but when im gearing down to 1st it backfires through the carb and dies. generally it starts right away with a kick or two and rides away. i tor my bike down to the frame, rebuilt the engine, and fully restored it but