rjdgriff Posted October 16, 2011 Report Posted October 16, 2011 So just put a new serval in and it's only running on 1 cylinder. I have spark and fuel. Compression is good. Stock carbs t5 exaust v3 reeds noss cool head adjustable time plate (+4). Any ideas? Quote
coryv4 Posted October 17, 2011 Report Posted October 17, 2011 So just put a new serval in and it's only running on 1 cylinder. I have spark and fuel. Compression is good. Stock carbs t5 exaust v3 reeds noss cool head adjustable time plate (+4). Any ideas? choke tube in place? to low of idle? to small pilot pilot airscrew to far out try another set of spark plugs ive had plugs not work from the store dont no why but it happens Quote
coryv4 Posted October 17, 2011 Report Posted October 17, 2011 choke tube in place? to low of idle? to small pilot pilot airscrew to far out try another set of spark plugs ive had plugs not work from the store dont no why but it happens also put that timing plate at +3 servals dont like alot of timing are your reeds crack? Quote
BigRed350x Posted October 17, 2011 Report Posted October 17, 2011 If all the basic stuff checks out (choke tube, fuel supply, spark, compression check, etc) then start swapping parts side to side 1 at a time and see if the problem jumps to the other cylinder. Did you do a leak-down test? Quote
rjdgriff Posted October 17, 2011 Author Report Posted October 17, 2011 Ok so I swapped plug wires no change the carbs should be fine I have 27.5 pilots I think. I I have tors removed but there is still a black box for it and when I plugged it in, it seemed that it was running on both cylinders but then it wouldn't idle anymore. As far as timing goes will going from +4 to +3 make a difference on one cylinder firing? Idk lol. Quote
rjdgriff Posted October 17, 2011 Author Report Posted October 17, 2011 Also the reeds are brand new Quote
ban99shee Posted October 17, 2011 Report Posted October 17, 2011 I would try a pressure test, and test the cylinder compression. Quote
DannysZ28 Posted October 17, 2011 Report Posted October 17, 2011 Make sure carbs are in sync. I put mine back together one time in a hurry and had my carb cable binded and it made one carb open more than the other in which made one cylinder dead. Quote
RadarRacing Posted October 17, 2011 Report Posted October 17, 2011 Piston in backwards? Washer not on mainjet in carb? Forget to put mainjet in carb? Fuel line kinked or clogged? Fuel runs out of line and carbs fine? Float level messed up, no fuelcomin thru carb? Quote
rjdgriff Posted October 17, 2011 Author Report Posted October 17, 2011 Carbs are in sync. Main jets are there washers are there. Fuel lines are good, good gas flow into carbs. something in carb not working right???? I'm not a carb wiz, but the slides are synced and moving like they should all jets are in place. Quote
firebanshee Posted October 18, 2011 Report Posted October 18, 2011 You might have your slides in your carbs swapped, switch the slides and try it. Quote
Jereme6655 Posted October 18, 2011 Report Posted October 18, 2011 wow.....where you been firebanshee? haha long time since i've seen you here.... id agree with fire.....check your carb slides (cut out shape facing the rear of the bike is correct) and are you SURE that your pistons made it in correctly? which way did you point the little arrow on the piston tops? Quote
dirtydownunder Posted October 18, 2011 Report Posted October 18, 2011 was the cylinder setup the only change, or did you do other things at the same time, like remove tors, add cdi, change wiring, etc. what do the plugs look like ? Quote
SlowMoe Posted October 18, 2011 Report Posted October 18, 2011 Abackwards piston or lack of a flywheel key would be my guesses Quote
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