I have replaced both sets of windings in the alternator (both were used units I got on eBay), the wiring harness, the fuse box, the ignition switch, and the regulator and rectifier. honda cb650 cb750 cb750f cb900 cb900c cb1000 electrosport outer stator esg210. Anyway, the charging system is broken and I can't fix it so I come to you to salvage my dignity. Please fully test all other components before assuming the regulator is at fault. My bike is a 1980 CB 750. Last item available. Proceed to registration. Popularity - 186 views, 0.3 views per day, 592 days on eBay. Hey all, new to the forums and I'm having a bit of trouble with the alternator on my bike. Upgrading to a Rick's high performance part has definitely improved my bikes charging system. If they are different, your stator is defective. Those Honda rotors break all the time. Honda did a cheap trick with the CB750 series with that rotor, the system is designed so that there's not enough poles in the stator to produce any electricity below 1500rpm - as a result there's no load on the bike engine at those RPMs, and thus no need to fart around with increasing fuel/air at idle in order to handle the load of the alternator. Author Topic: CB750 AC output test (Read 3946 times) 0 Members and 1 Guest are viewing this topic. I ran a stator test and it came up with a bad low speed source coil on my 1980 CX500C. The color code remains the same. free shipping #cb750K #cb750four #cb550K #cb550four #cb750 #vintage #hondacb #motorcycle #bratbike #caferacer #caferacercustom #vintagemotorcycle #hondabike. 39 sold, 2,990 available. No Interest if paid in full in 6 mo on $99+Opens in a new window or tab* No Interest if paid in full in 6 months on $99+. You may take it down to Autozone/O'Reilly's/Advanced Auto and have them test it to find out that the battery is okay. Also, with the STATOR unplugged, test all stator windings to see if you are shorting to the frame. Next thing would be test both the stator and the R/R. The 10-100 rectifier plugs into the harness at the same location as the OE rectifier. Item Information. Price: US $129.99. So, open circuits can effect test … The charging system was fine for a good while. The GL rims, being larger than CB750 standard, make for higher ground clearance. Yet the second 1/2 of the stator coil is producing current while the engine is running as well but it is going nowhere. Includes a modern combined regulator/rectifier and a stator. Details about HONDA CB900 CB750 CB1000 CB650 STATOR ALTERNATOR GENERATOR FLYWHEEL ROTOR. STATOR COVER. Popularity - 4,043 views, 2.0 views per day, 2,049 days on eBay. I have a battery issue and I'm trying to troubleshoot it. Otherwise, checking for continuity on the stator would be one thing to try. An electronic regulator may require current flow in the field coil to produce a voltage. The 10-100 regulator is connected to the harncss via the 3 single wires with spade terminals (these plug into the wires that originally were going to the tabs on the OE regulator). … Confirm you have the right stator and R/R for the bike. I have an 82 650 Nighthawk with electric charging issues, stator tests at .6 ohm between yellow wires and book says SB .3 to .4 ohm, it appears I need a stator? Get 15% discount when buying 2 parts and more. High battery voltage, low white wire voltage. The symptoms I see are poor idle. New Electrosport Stators Direct Plug In Replacement, 1 year warranty, plug and play ESF901 Rotor Honda CB650 / CB750 / CB900F ESF901 is a brand new replacement rotor for the alternator system on CB650F, the CB750F, the CB900F and CB900C Honda models between the years 1979 and 1983. Discount will apply in the cart. HONDA CB750 SANDCAST K0 KO CB 750 1969 70 SOHC THE BEST! The Electrosport ESG210 is a high quality stator designed as a plug-in replacement for the OEM stator in your Honda DOHC CB750, CB900 or CB1100. If it tests good then go on to the stator checks. I may need a new stator and would like pics of cooling modification, thnx, johngbell@yahoo.com We have the honda shop manual posted here. purchase Honda 400ex Stator Test Cb750 from Ebay. Shop our big selection of Honda 400ex Stator Test Cb750 purchasable on-line. Hi there, First, I'm new here, first post. Low battery voltage, High white wire voltage. This 1981 CB750 Custom on Bring a Trailer is an excellent example of this model. Replaces stock factory ignition coils on All 1970 & up models and works with electronic ignitions. Having charging problems on my 74 CB750 (what else is new). Not intended as an instructional video, it is part of a video catalog of our restoration project. Finaly installed a solid state all in one modern reg/rec unit with no change. As a guest you can view the forum and photo galleries, but you have to register before you can post or view attachments. Bike runs good at over 55mph or faster . CB750.com is dedicated to the Honda CB750 SOHC and DOHC motorcycles and to their owners who love to ride, restore, and customize them. The stator, which must have all windings intact with correct resistance, and not shorted to ground. I was wondering if there is an easy way to check the stator and/or the regulator/rectifier. Each time required a new battery even after charging it completely. c $179.97. Replaces OEM # 31110-300-154 Fits: Honda CB750K (1969-78), Vrr and rotor test good. Any reading lower than 5 ohms on the first test or less than infinity on the second test means you have a bad rotor. It kind of pops and sputters. You will need a multimeter set to Ohms for this test. They show a wide range of Ohms between the two when on the bike, which from what I've read so far, is bad. Pulled the stator apart and started testing. But, now it seems I can only ride about 30 to 40 miles and i have to recharge the battery. Techedtyler. Add to cart . If any of the windings are shorted to frame ground, then the stator got installed improperly. 17K OHM Secondary Resistance. HONDA CB900 CB750 CB1000 CB650 STATOR ALTERNATOR GENERATOR FLYWHEEL ROTOR. Adding to your cart. Puts out 25% more power over stock to allow for halogen headlights or high output coils and such. Buy Honda 400ex Stator Test Cb750. Set your multimeter to Ohms. Ohms Test. ... Vintage Honda’s 1975 and 1974. I've also taken every connection I can find and re-cleaned all terminals.. the bike charges better cold and as she warms up to operating temp all charge dies out. Good resistance on all 3 polls of the stator … GL style rims are fitted front and reaf, a 19.5 litre GL styled tank is factory fitted, the handlebars high and wide. On the second test between one slip ring and the engine you should see infinity on the meter. On my shop book, it says that "the rated resistance value is 7.2Ω. ... CB 750 K. Motorcycle 1979 Honda CB 750 K; CB 750 Limited. Replacing the alternator rotor on a 1980 Honda CB750f motorcycle. Alternator Stator Wire Harness, This Harness has the Same 7 Wire Plug as the OEM part and Hooks up Without Alterations. If you love that 350-360 twin, THIS is the ultimate upgrade for the electrical system. I had a 1978 CB750, and I let the batter die a couple of times. The stator's yellow wires all test good, with ~.5 ohms between them all, none to ground. Test every lead of the stator’s connector and note the readings. On my multimeter it shows 6.8Ω. look Honda 400ex Stator Test Cb750 now! Aesthetically the bike looks very different to the other CB750 models, the designers looking to the GL model Honda for inspiration. CHECK AC OUTPUT: (This check isn’t necessarily as important as the other tests and is not shown in the video version). I dont want to continue riding it and ruin the new battery. Add to Watchlist Unwatch. '99 cb750 nighthawk - new stator, 0 AC volts Hey all, My friend bought a cb750 nighthawk basket case for his first bike and, pretending to be tech savvy, I told him we'd get it up and running ezpz. Tried a handful of used regulators and rectifiers. Yes, the voltage level should be be commensurate with the state of battery charge. PicClick Insights - Stator & Regulator Rectifier for Honda CB750 Nighthawk 1991-1993 1995-2003 PicClick Exclusive. we provide an enormous selection that you simply can love. Replace it. The charging system voltage gradually drops off as the engine heats up. Ordered a charging rotor for my CB750 Honda Nighthawk, and it worked like a charm. 96. Requires 7 mm Dia. 6. It is a fair sized download, about 55MB, but would be a big help as it shows you how to do these tests. At the stator wire connector locate the three white wires. More than 66% sold. Sign in to check out Check out as guest . The issue is with the white/black wires. Free shipping. So my apologies if I don't do it properly. You could try a brand new battery (I recall it being $50 or so). • You can do this test by first setting your multi-meter to read AC voltage. PicClick Insights - 69-78 Honda HM CB750 Stator Generator Magneto Assembly PicClick Exclusive. And if you don't mind changing 5-pin connector and extending the oil pressure lead on this part it will also drop … I replaced the battery and it still has the problem. I can feel it missing when running at around 3500 rpm in first. The reading of each combination should be the same (test leads 1-2, 2-3, and 3-1). The item you've selected was not added to your cart. Fits: Honda All Honda CB750's (1970-78) Dual Tower Performance High Output ignition Coil 5.2 OHM Primary Resistance. There are 3 ways you can test a stator 1. The Honda Nighthawk's are great bikes, but let's face it, they aren't exactly known for having strong charging systems. About 11.0 volts at idle and 11.5 at 5k. I changed the rotor, stator, reg/rectifier, both coil packs, and the battery on my 1980 cb750 and am still having charging issues. Super high amount of views. 1978 Honda CB750K CB750 CB 750 Stator Stator Alternator Cover Side Case Left L OEM Honda part # 11631-300-040 31102-300-045 (replaces 31102-300-035) Honda Models Fit 14CB750F-K5 1975 750 750 Super Sport CB750F-K6 1976 750 750 Super Sport CB750F-K7 1977 750 750 Super Sport CB750F-K8 1978 750 750 Super Sport CB750K Ground Test. I'm currently trying to test the alternator because everything else seems to be good. Excerpted from a CB750/550 Wiring Diagram. It’s free and only takes a minute. This ended up being a bit of "over engineering" in thought as the "under engineered" stator coil is barley able to keep the battery topped off with only 1/2 of the system always on. I have a 1975 Honda CB750. I ran a parasitic draw test and came back with nothing so I'm thinking either regulator rectifier or stator. Condition: Used. This should take you less than a minute. Of a video catalog of our restoration project but it is part a... Components before assuming the regulator is at fault like a charm out 25 % more power over stock allow... Otherwise, checking for continuity on the second test between one slip ring the! Fully test all stator windings to see if you are shorting to the stator checks CB1000 stator. 3 ways you can test a stator 1 on all 1970 & up models and works with electronic.... Out check out check out as guest yet the second test between one slip ring and R/R... 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