Posts
21
Joined
12/25/2016
Location
CA
Hello,
I recently "completed" a rebuild/restoration of my Cr250.
The bike was a basket case when I bought it, and over the last year and a half I have completely rebuilt it.
My problem is, it will not run.
I have checked for spark (it's new and.properly gapped) and spark is there, I'm getting fuel, as on the 2nd or 3rd kick it will fire but not run. After that nothing. I checked for fouling on the plug and its wet but not dripping.
Brand new reeds, brand new plug, cleaned carb and ensured that it flows fuel. New cylinder plating , new gaskets etc.
At a loss currently.
Any help would be appreciated.
Thanks
I recently "completed" a rebuild/restoration of my Cr250.
The bike was a basket case when I bought it, and over the last year and a half I have completely rebuilt it.
My problem is, it will not run.
I have checked for spark (it's new and.properly gapped) and spark is there, I'm getting fuel, as on the 2nd or 3rd kick it will fire but not run. After that nothing. I checked for fouling on the plug and its wet but not dripping.
Brand new reeds, brand new plug, cleaned carb and ensured that it flows fuel. New cylinder plating , new gaskets etc.
At a loss currently.
Any help would be appreciated.
Thanks
I went through this thing completely, all new bearings in wheels, steering, swingarm, linkage, new clutch, new reeds, replaced the cylinder and had it re-plated and matched to new piston and rings, all new seals, rebuilt the forks etc.
The Shop
I had the same problem with my 86 cr 125 that sat in storage for 10 years. The pilot jet has small holes that were blocked.
i was kicking, it started for a sec and died !
after i cleaned the pilot jet it starts and runs as should!
or
if you have spark you have to set the timing as said above!
If your sure the spark plug is not the problem, check from the outside in.
Look for at least 50 ac volts out of the power source coil
Pick up coils usually send 5ac volts to the SCR, this takes a peak reading voltage meter to read
I use a coil tester, however you can do the normal OHM and K ohm coil test, issue here is it's not firing under compression.
Hope this helps
As my multimeter isn't capable.
Checked timing marks and it is perfectly lined up.
Next I'm going to doublecheck the carb over. As Well, I mayremove my spark plug cap and trim the cable end and reinstall the cap to eliminate any issues there.
It shouldn't have happened cause all i did was pull the top end have the cylinder replated and put in a new top end but some how it got out of whack.
And this may sound dumb.... but may be worth double checking to see if the piston is in the right direction?
Post a reply to: 1986 CR250 no start problem