fresh rebuild

[LawDog]

Just did a complete motor rebuild mods are t-5 pipes, +4 timing plate, pod filters, stock carbs, 290 mains, 27.5 pilot, needle middle clip, idle screw 2.5, air screw 1.5. Bike started very easy but was idling high so messed with all the screws then I realized I had the carb slides in backwards fixed that. In the morning it fired on the first kick ran well tell about warm up then the left exhaust pretty much died off by half. Right side runs perfect but the left side started running leaner and was blowing cold. I messed with the air screw but didn't help. If I get on the throttle it kind of gets better, Any advice?

 

Checked caps and switched plug wires still was on the left side. no change. Thinking I need to take the carb off and make sure nothing in blocking the jets or reeds.

[locogato11283]

Check the jets.

[LawDog]

prob blocked wouldn't u say?

[LawDog]

Sure enough Tyler had a bunch of crud in my carbs from sitting all winter. Didn't know anything about dropping carb bowls to empty them.

[James_21]

Live and learn, I had the same issue last year

[locogato11283]

Yea, these motors aren't too complicated. It's usually something simple. You should bring it over to the hillclimb on May 6.

[camatv]

wow.  ok here is a little rule of motors.

 

if you rebuild the engine  clean the carbs or even get rebuild kits for them also. and "clean" dosent mean take the bowls off and spray around with carb cleaner.  take them COMPLETELY apart even remove the dump tubes and clean that entire area out also.  use carb clean, brake clean AND compressed air.  spend some time doing a complete engine setup after it is installed and that will save a LOT of headaches.  for example.  leak down test, electrical system up to par ( caps good resistance. new plugs, wiring in good shape, flywheel good crank in good shape, stator pickup adjusted correctly  etc)  carbs clean and~~ synched~~ FRESH fuel , you wouldn't believe how many times i have had that problem alone. fresh oils and fluids. clean filter ( yes seen this also)  and all the bolts tight ( oh that was a good one!) 

 

i'm not trying to be a jerk i'm just trying to help  i have seen all the "guides" and videos on the net that show the real basics of building motors and replacing top ends but none of them really go into detail on the "details" that make a banshee run good. almost every question i have seen except a few here and there are all related to bad maintenance or easily diag'd parts.  all the time i get a "rebuilt" motor / bike come through here and i literally spend 4-8 hours going around and fixing all the basics that are what makes them run well.  this is after the owner has been p.o.'d that his new motor didnt fix the electrical issue they were having.  

[LawDog]

Yeah Tyler I would love to do that. Going to start total rebuild on dustins bike. All except lower end. Prob won't make the hill climb on the 6th.,Will be moving into the new house on the 10th. Would love to do some hill climbs. Once we get dustins bike back together might see if we can get ur help with fine tuning. We plan on doing a ton more riding. Dustin would love to do some hill climb again.