My son gave me an XJ700 Maxim that he bought but didn't use. The thing doesn't like to start except with much cranking and starting fluid in the airbox. If it started it would fly. So far I changed the rectifier (wasn't charging), pulled and cleaned the carbs and checked the ignition coils. The coils had correct resistance at the primaries and secondaries. The next issue is the plug caps. The outside caps have 10k resistance but the inner two only have 5k resistors in them. My understanding is that they should all be 10k. The existing plugs are non-resisters although one seems to be bad at 3k. Doing more research, I find some conflicting info. In this post by Chacal (forums/threads/plug-caps.33166/) is this: It is important to remember that you should strive to keep the ignition coil secondary circuit (plug wire, plug cap, and spark plug) total resistance as close as possible to original specifications, which are: - 15K ohms per cylinder on all 1986 XJ700-X, XJ750-X, and XJ900 S/SH models. - 10K ohms per cylinder on all XJ550, 1985 XJ700-X models, 1986 XJ700 non-X, XJ750RL, and XJ900 N/FN and F models. - 5K ohms per cylinder on all XJ650, 1985 XJ700 non-X, all 1981-83 XJ750 models, XJ750-D, XJ900RK and RL models, and XJ1100 models. In his catalog (catalog/d-6-ignition.html) there is some conflict, may just be typo: XJ700 air-cooled models: Pick-up coils: 120 ohms +/- 20% = 96 ohms to 144 ohms acceptable range Ignition Coils: Primary side (input from main wiring harness): 2.7 ohms +/- 10% = 2.43 ohms - 2.97 ohms acceptable range Secondary side (spark plug wires, without their end caps): 12K ohms +/- 20% = 9,600 ohms - 14,400 ohms acceptable range Spark plug caps: 1985 N/NC models: 5K +/- 20% = 4,000 to 6,000 ohms per cap acceptable range 1986 S/SC models: 10K +/- 20% = 8,000 to 12,000 ohms per cap acceptable range Spark plugs: 1985 N/NC models: 0 ohms per plug 1986 S/SC models: 5K ohms per plug In this case the total resistance would be 15k per cylinder. Is this just a typo? Later in his catalog: XJ700 engines: HCP1294 Original BP8ES NGK SPARK PLUG, stock non-resistive plug is correct for all 1985 XJ700 non-X models. Each: $ 4.95 HCP1294SET4 Original BP8ES NGK SPARK PLUGS, set of 4. $ 18.95 HCP1295 Original BPR8ES NGK SPARK PLUG, stock 5K ohms resistive plug is correct for all 1986 XJ700 non-X models. Each: $ 4.95 HCP1295SET4 Original BPR8ES NGK SPARK PLUGS, set of 4. $ 18.95 I am also assuming the bike is an '86 model by the VIN (and registration).