njdevil Posted July 12, 2017 Report Posted July 12, 2017 For starters, 99 Shee mostly stock other than K&N filter , gearing change and FMF fatty. Owned for about 8 yrs. basically just change the oil plugs and keep it clean. Run at a 40:1 ratio. I just rebuilt my carbs, forgot the choke tube (first time mistake), took me a while to figure that out. Wouldn't start but would run if I shot a little startin fluid in carbs and held a WOT. Does that sound right? If I put the tube back on should it run normal? Assuming everything is tuned in correctly. Also compression around 90psi in both heads, Do you think that is time for a rebuild or can I just replace the rings? Walls look and feel pretty clean, never really beat on it as far a Banshee goes.... Thank You for any thoughts. Quote
spurdy Posted July 12, 2017 Report Posted July 12, 2017 For starters, 99 Shee mostly stock other than K&N filter , gearing change and FMF fatty. Owned for about 8 yrs. basically just change the oil plugs and keep it clean. Run at a 40:1 ratio. I just rebuilt my carbs, forgot the choke tube (first time mistake), took me a while to figure that out. Wouldn't start but would run if I shot a little startin fluid in carbs and held a WOT. Does that sound right? If I put the tube back on should it run normal? Assuming everything is tuned in correctly. Also compression around 90psi in both heads, Do you think that is time for a rebuild or can I just replace the rings? Walls look and feel pretty clean, never really beat on it as far a Banshee goes.... Thank You for any thoughts.90 psi is getting low. You can re ring it if the bore is ok. Straight and parallel. The bore can be tapered, or ovaled. If this is the case you will need to over bore it to get a straight and parallel bore again and size your piston accordingly. Sent from my iPhone using Tapatalk Quote
ginger Posted July 12, 2017 Report Posted July 12, 2017 in my experience avoid starting fluid, it washes down the cylinders of any lubrication. Quote
njdevil Posted July 12, 2017 Author Report Posted July 12, 2017 1 hour ago, ginger said: in my experience avoid starting fluid, it washes down the cylinders of any lubrication. Yes, I am aware of that, at the time i was running out of ideas and sanity. Couldn't figure out why it would only pull fuel at WOT. Quote
ginger Posted July 13, 2017 Report Posted July 13, 2017 the reasoning that its hard to start is the lower compression. Quote
njdevil Posted July 14, 2017 Author Report Posted July 14, 2017 22 hours ago, ginger said: the reasoning that its hard to start is the lower compression. I am hoping I can just re-ring them. I will be doing some measurements this weekend, hopefully. Never really played around with a 2-stoke to much. I am more of a small block Ford guy. Can't be that difficult same basic idea, smooth and straight. Quote
spurdy Posted July 14, 2017 Report Posted July 14, 2017 I am hoping I can just re-ring them. I will be doing some measurements this weekend, hopefully. Never really played around with a 2-stoke to much. I am more of a small block Ford guy. Can't be that difficult same basic idea, smooth and straight. Yep. Remember to wear on the piston also. That and check the service limits of the crank shaft and you should be good. I had a motor the still ran great, had decent compression but had 0.012" cylinder wall to piston clearance. So, good to check everything while you've got it apart. Sent from my iPhone using Tapatalk Quote
ginger Posted July 14, 2017 Report Posted July 14, 2017 depending on your bore, i would just get the minimum bore job done with fresh pistons, that way you know you are good to go. Quote
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