So... I got this epic pile of shit TDM850. I traded like 3 grand worth of crap for it too. fucking whoops, it's hands down my greatest moto regret
Anyway, a year later i've got maybe 3 miles on it.
It starts and runs and seems to ride ok EXCEPT maybe once or twice a minute it'll backfire and blow back out the intake. It's not like a lean backfire on decel, it's not a timing issue, it doesnt seem to care about throttle position or load
bike is big carbed parallel twin. valves are shimmed and timed exactly. carbs cleaned meticulously. new plugs and filters, every thing else pretty factory. it's got quite a few miles, 20k or something.
but it does worry me, it's gotta be kinda hard on the engine i mean it's pretty hard when it does it. and it shouldnt.
My thought? electric? but where to address it? I dunno.
Honestly i'd rather just make this thing disappear but i've got way too much time into it to just abandon. maybe i'll leave it out one night so it can disappear without me feeling like I chose to quit it.