Hi. I hope someone can point me in the right way. Im building a YZR 500
replica with a costin chassi and now im realy close to a first start of my newly rebuild rd 500 engine. I cant get a spark from the plugs and i have cheked everything and everything seems fine, i have signal in both the orange vires into the ign coils, but no spark. New ign coils, tested ground ok. pick up coil and ac gen OK. But the YPVS servo motor behavies strange, somtimes when i turn ign on it works and sometimes not, sometimes it lives its own life. Does the YPVS box control the ign in some way? New battery, RD500 standard wire loom, I have no tachometer installed, does that matter or should i have a spark anyway?
I would really need some help because in july 19 we have a twostroke track day in Linköping and i would realy want go there!!
What have i missed?
//Tommy
No spark, please help!
Moderator: rztom
- aaronmvrider
- Posts: 1401
- Joined: Fri Nov 21, 2008 7:43 pm
- Location: Central Coast New South Wales
Check the cylinder head ground to the coil ground.
Maybe chassi ground need a wire run to it????
PV disconnect is a good Idea..
Maybe chassi ground need a wire run to it????
PV disconnect is a good Idea..
http://www.rdsonly.com/
JT
1975 RD350B
1975 RD250B -rough
1979 RD400 Race bike- in process
1985 RZ500 - flame bike
1993 TZ250 4DP2- to be restored
JT
1975 RD350B
1975 RD250B -rough
1979 RD400 Race bike- in process
1985 RZ500 - flame bike
1993 TZ250 4DP2- to be restored