alirezaezani Posted December 13, 2014 Share Posted December 13, 2014 Hello every one sorry for my poor english I bought a vfr750f 1987 3 month ago,it was dissassmbled and the engine was off for about a year.no spark unit no ometers then I bought the spark unit from ebay and installed the wiring. ignition switch,clutch switch and nutral indicator works the the engine starts but it wont spark how can I make this engine run I want to use in on a buggy Link to comment Share on other sites More sharing options...
Member Contributer MBrane Posted December 13, 2014 Member Contributer Share Posted December 13, 2014 Stand switch? Link to comment Share on other sites More sharing options...
Member Contributer Dutchy Posted December 13, 2014 Member Contributer Share Posted December 13, 2014 khosh amadid to VFRD! In the download section you will find the workshop manual for your bike http://www.vfrdiscussion.com/forum/index.php/files/file/156-vfr-86-service-workshop-manual-in-eng-deu-fra-esp/ Link to comment Share on other sites More sharing options...
VFRBert Posted December 13, 2014 Share Posted December 13, 2014 The rc24 model does not have a stand switch. It has a neutral switch and a switch on the clutch mastercilinder. Starting is possible with the gearbox in neutral, or the clutch revoked. You need the right ingnition box. There is a difference between the 86-87 model and the 88-89 model. A ignition box from a 88-89 model will not work on the 86-87 model. You can bypass the clutch switch, by connecting the greenred and green wire wich normally are conncted to the clutch switch. Succes. And we like pics from the buggy, because a VFR engine is a very good choice, for a fast buggy. Link to comment Share on other sites More sharing options...
JasonWW Posted March 30, 2015 Share Posted March 30, 2015 The rc24 model does not have a stand switch. It has a neutral switch and a switch on the clutch mastercilinder. Starting is possible with the gearbox in neutral, or the clutch revoked. You need the right ingnition box. There is a difference between the 86-87 model and the 88-89 model. A ignition box from a 88-89 model will not work on the 86-87 model. You can bypass the clutch switch, by connecting the greenred and green wire wich normally are conncted to the clutch switch. Succes. And we like pics from the buggy, because a VFR engine is a very good choice, for a fast buggy. Let me make a few corrections on your response. The 88-89 RC24's DO use a side stand switch, but the 86-87 do not. The clutch and neutral switch are not wired to the ignition box on the 86 and 87 model bikes. They are wired into the starter circuit. (the clutch and neutral switch are wired to the ignition box on the 88 and 89 model bike) The 86 bike uses an analog ignition system and is unique to that year. The 87-89 bikes use a digital system and are very similar in function. Without doing any rewiring, the 87 ignition box will only fit the 87 bike. The 88-89 boxes interchange between those 2 bikes. You appear to have a proper 87 ignition box in the picture. Here is an 87 wiring diagram. Let me know if you need help troubleshooting the ignition system. Jason Link to comment Share on other sites More sharing options...
Member Contributer Dutchy Posted March 30, 2015 Member Contributer Share Posted March 30, 2015 Ali has set "last active" to "private" so we donot know if he has read the above. If you do Ali, let us know how you are getting on. Link to comment Share on other sites More sharing options...
alirezaezani Posted May 7, 2016 Author Share Posted May 7, 2016 here is some pictures of my buggy and my vfr enginealso the spark unit I bought Link to comment Share on other sites More sharing options...
alirezaezani Posted May 7, 2016 Author Share Posted May 7, 2016 On ۱۳۹۳/۹/۲۱ ه.ش. at 7:42 PM, Dutchy said: khosh amadid to VFRD! In the download section you will find the workshop manual for your bike http://www.vfrdiscussion.com/forum/index.php/files/file/156-vfr-86-service-workshop-manual-in-eng-deu-fra-esp/ merc duste aziz shoma dar iran saken hastid? the url file does not include any files Link to comment Share on other sites More sharing options...
alirezaezani Posted May 7, 2016 Author Share Posted May 7, 2016 On ۱۳۹۳/۹/۲۲ ه.ش. at 11:05 PM, VFRBert said: The rc24 model does not have a stand switch. It has a neutral switch and a switch on the clutch mastercilinder. Starting is possible with the gearbox in neutral, or the clutch revoked. You need the right ingnition box. There is a difference between the 86-87 model and the 88-89 model. A ignition box from a 88-89 model will not work on the 86-87 model. You can bypass the clutch switch, by connecting the greenred and green wire wich normally are conncted to the clutch switch. Succes. And we like pics from the buggy, because a VFR engine is a very good choice, for a fast buggy. I posted some pictures of my buggy for you my friend A and here is my site : + + ----------------------- http://www.aebuggy.com --------------------------------------------------------- + + Link to comment Share on other sites More sharing options...
alirezaezani Posted May 7, 2016 Author Share Posted May 7, 2016 On ۱۳۹۴/۱/۱۰ ه.ش. at 10:50 PM, JasonWW said: The rc24 model does not have a stand switch. It has a neutral switch and a switch on the clutch mastercilinder. Starting is possible with the gearbox in neutral, or the clutch revoked. You need the right ingnition box. There is a difference between the 86-87 model and the 88-89 model. A ignition box from a 88-89 model will not work on the 86-87 model. You can bypass the clutch switch, by connecting the greenred and green wire wich normally are conncted to the clutch switch. Succes. And we like pics from the buggy, because a VFR engine is a very good choice, for a fast buggy. Let me make a few corrections on your response. The 88-89 RC24's DO use a side stand switch, but the 86-87 do not. The clutch and neutral switch are not wired to the ignition box on the 86 and 87 model bikes. They are wired into the starter circuit. (the clutch and neutral switch are wired to the ignition box on the 88 and 89 model bike) The 86 bike uses an analog ignition system and is unique to that year. The 87-89 bikes use a digital system and are very similar in function. Without doing any rewiring, the 87 ignition box will only fit the 87 bike. The 88-89 boxes interchange between those 2 bikes. You appear to have a proper 87 ignition box in the picture. Here is an 87 wiring diagram. Let me know if you need help troubleshooting the ignition system. Jason yes my friend the clutch connects to start system, and it ok,I made the starts go and it does really well,the nutral light indicator turns on,means the clutch and start system are ok the problem is from somewhere else I reacently found that there is a conection between cam shaft sencor and spark unit,in picture you can see the black plug with two wires are from cam shaft red plugs conect to spark unit and black plugs must connect to somthing else that I dont know what it is Link to comment Share on other sites More sharing options...
alirezaezani Posted May 7, 2016 Author Share Posted May 7, 2016 On ۱۳۹۴/۱/۱۰ ه.ش. at 10:50 PM, JasonWW said: The rc24 model does not have a stand switch. It has a neutral switch and a switch on the clutch mastercilinder. Starting is possible with the gearbox in neutral, or the clutch revoked. You need the right ingnition box. There is a difference between the 86-87 model and the 88-89 model. A ignition box from a 88-89 model will not work on the 86-87 model. You can bypass the clutch switch, by connecting the greenred and green wire wich normally are conncted to the clutch switch. Succes. And we like pics from the buggy, because a VFR engine is a very good choice, for a fast buggy. Let me make a few corrections on your response. The 88-89 RC24's DO use a side stand switch, but the 86-87 do not. The clutch and neutral switch are not wired to the ignition box on the 86 and 87 model bikes. They are wired into the starter circuit. (the clutch and neutral switch are wired to the ignition box on the 88 and 89 model bike) The 86 bike uses an analog ignition system and is unique to that year. The 87-89 bikes use a digital system and are very similar in function. Without doing any rewiring, the 87 ignition box will only fit the 87 bike. The 88-89 boxes interchange between those 2 bikes. You appear to have a proper 87 ignition box in the picture. Here is an 87 wiring diagram. Let me know if you need help troubleshooting the ignition system. Jason the link is not right my frind not clickable Link to comment Share on other sites More sharing options...
VFRBert Posted May 7, 2016 Share Posted May 7, 2016 7 hours ago, alirezaezani said: merc duste aziz shoma dar iran saken hastid? the url file does not include any files If you have a camshaft sensor, you have a FG model engine and need the sparkbox from that engine to get things running properly VFRD had a server crash and complete new forum software, so files are missing at this moment. https://db.tt/rWgUUj6p Use this link to get a copy of the workshop manual on my dropbox chapter 21 has the wiring diagram. Link to comment Share on other sites More sharing options...
Bornholmeren Posted November 20, 2017 Share Posted November 20, 2017 Very interresting project! And nice buggy. I found this site as I was searching for wiring diagram for 87 vfr. Long story short, I have an 87 VFR, and wanted to have the fairing, instruments and so from an 86 Interceptor. We discovered we´d have to change the wiring to make handlebars and instrument fitting. So we did, and the 86 is running fine. But I haven´t been able to start the 87. The wiring harness look same, but (now) I know there is difference with pick-ups and so. The bike - 87 with 86 wiring - has no spark, and fuel pump is not working. Unfortunately I am NOT expert on electrical systems, and I'll have some help. BUT if someone has an easy solution, it would help. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.