BansheeGuy_IV Posted January 21, 2006 Author Report Posted January 21, 2006 Hey guys, TORS is completely removed, all traces of it are gone... The TORS module is gone. The wires... etc... Swapped out to a new coil... Cleaned the heck out of the ground at the regulator. I can swap spark plugs al day and all night. No change. Here's a list of things I've done. Swapped plug wires Changed plugs several times Swapped out two sets of reeds/cages Swapped out 3 sets of carbs Swapped out Stator, CDI, Coil, Flywheel Leak Down Tested -- Passed Compression Tested 150lbs both cylinders Set gap on pickup coil .018 Checked crankshaft to be sure it was in phase (Passed) Checked Squish clearance (Passed) Ring End Gap (Passed) Completely re-rebuilt the engine with a fresh set of factory cases. (No change) and all new seals a second time. (No change) I'm really hurting for ideas. BG Quote
FIRST BANSHEE Posted January 21, 2006 Report Posted January 21, 2006 Hey guys, TORS is completely removed, all traces of it are gone... The TORS module is gone. The wires... etc... Swapped out to a new coil... Cleaned the heck out of the ground at the regulator. I can swap spark plugs al day and all night. No change. Here's a list of things I've done. Swapped plug wires Changed plugs several times Swapped out two sets of reeds/cages Swapped out 3 sets of carbs Swapped out Stator, CDI, Coil, Flywheel Leak Down Tested -- Passed Compression Tested 150lbs both cylinders Set gap on pickup coil .018 Checked crankshaft to be sure it was in phase (Passed) Checked Squish clearance (Passed) Ring End Gap (Passed) Completely re-rebuilt the engine with a fresh set of factory cases. (No change) and all new seals a second time. (No change) I'm really hurting for ideas. BG 462618[/snapback] I would start at the coil and work my way back through the wiring harness, maybe when the tors and stuff was removed the wire were not properly taped up, or maybe you have a couple wires touching or grounding. Quote
BansheeGuy_IV Posted January 21, 2006 Author Report Posted January 21, 2006 Good thought, But I went through the entire wire harness, from Coil to CDI, to all the switches, back to the stator. None of my wires are taped. Everything is soldered and heat shrink wrapped. BG Quote
RNBRAD Posted January 21, 2006 Report Posted January 21, 2006 Well the only thing left is a cylinder problem. Maybe your base gasket or an old piece maybe clogging or covering up a transfer, or something along those lines. Maybe you lost part of a piston skirt and it's lodged somewhere? Are they ported? Maybe someone didn't exact the same port job on both sides. Another thing, make sure a mouse didn't take up residence in the exhaust during the rebuild. Quote
FASTOYS Posted January 21, 2006 Report Posted January 21, 2006 stock porting i believe he told me. Quote
BigRed350x Posted January 21, 2006 Report Posted January 21, 2006 Well the only thing left is a cylinder problem. Maybe your base gasket or an old piece maybe clogging or covering up a transfer, or something along those lines. Maybe you lost part of a piston skirt and it's lodged somewhere? Are they ported? Maybe someone didn't exact the same port job on both sides. Another thing, make sure a mouse didn't take up residence in the exhaust during the rebuild. 462722[/snapback] I've had mice make homes in my pipes during rebuilds in the past. Those little fuckers sure can jam up a set of pipes, I can tell you that much. We had to burn all the shit out of the pipes with oxy acetaline. Quote
FASTOYS Posted January 21, 2006 Report Posted January 21, 2006 LOL , pipe bomb with mice ammunition! " Duck, and cover" Quote
fastbanshee8 Posted January 21, 2006 Report Posted January 21, 2006 That last reply was good. You might try replacing the spark plug boot on the left side. They are cheap, and easy to replace. Quote
BansheeGuy_IV Posted January 21, 2006 Author Report Posted January 21, 2006 Hey guys, Appreciate the continued ideas. The porting on this particular engine is bone stock. The cylinders were pristine, the pistons pristine. Fresh bores. No foreign material in any of the exhausts. I pulled the head and cylinder for the 5th time probably... And from test riding it... Trying to figure it out... I cold seized the left cylinder. It didn't gouge above the exhaust port, but the bore is shot just the same. I've got a new cylinder coming... To completely take the other one out of the picture. The jugs on it were used from a salvage yard. I'd love to have it magnafluxed to see if there is a hidden crack somewhere.... Especially where the coolant jacket is right above the transfers. I'll be back at it next weekend putting on the replacement jug to see what happens. BG Quote
BansheeGuy_IV Posted January 24, 2006 Author Report Posted January 24, 2006 I appreciate everyone's responses. I am actually swapping the head and replacing the left cylinder. I'm determined to make it run for him. BG Quote
fast500#12 Posted February 3, 2006 Report Posted February 3, 2006 when my cdi shit i did a similar thing. intermitent spark but would run fine on the left cylinder but miss like a mofo on the right. i did every thing you have done so far. replaced the cdi and ran like a champ. this may sound wierd but just give it a try disconect the head lights and the tail light and try it. if it runs it the cdi. mine wouldn't start if the lights were hooked up until i put in the new cdi. don't know why. i was desperate and open to any possability. just my 2 cents. Quote
MYquadsFaster Posted February 3, 2006 Report Posted February 3, 2006 i had the exact same problem and it ended up being a air leak in the intake manifold.. good luck Quote
BansheeGuy_IV Posted February 4, 2006 Author Report Posted February 4, 2006 Hey guys, An update. After literally swapping out everything... Every electrical component, 3 sets of reeds, 3 sets of carbs... 2 different heads... A completely new set of cases, all new crank seals... I completely replaced the left cylinder... Fresh bore... Guess what? IT STILL HAS THE SAME PROBLEM. Right now it's in a holding pattern... Literally... Because I don't know what else to try. So until I think of something... BG Quote
ssanddemon Posted February 4, 2006 Report Posted February 4, 2006 BRUTAL! This is an awesome thread for guys chasing cylinder firing problems, tho. Tons of good info on possible culprits. Sorry about the problems- maybe start looking for a good witch doctor? Quote
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