the boris
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Posts posted by the boris
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What kind of failure you had before the rebuild?
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Who did the work on the bike?
Looks like you do have a leak somewhere, did you inspect the bottom end when you were doing top end rebuild?
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Funny but possible, can happen to anyone.
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It would be VERY easy, the only tention you'd feel is external shaft spring... i don't think he'd think that was normal... unless he thought he found God's gift to hands, with that new lever that you could pull with your pinky lol
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Like this
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When he mentioned ball and pancake bearing, when you squeeze the clutch, is it hard like usually or since you changed the clutch became easy?
If it's easy to pull the clutch in, you might be missing some parts in there, like the ball between clutch rod and pressure plate.
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I have a set of old cylinders with questionable port job, I might take a look into them, the bike use to run like raped ape with that set but never run it on dyno, and relaying on feel is not the best measure of hp.I started porting banshee cylinders by copying a set of my friends. Took measurements from the top and bottom of the cylinder and mapped it all out. Then after I did that set actually read up on it and learned what I was actually doing.... port timing, not increasing volume.
Made my own degree wheel at work with a rotary engraver and .090” thick plastic, and did my next set with the degree wheel. That set was better than the first,
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Anyway, I might end up mapping them and comparing it with stock ones.
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And yes, clean the carburettors well.
After rebuild and leak down test you might need to rejet them too.
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Bad mixture can cause all kinds of nightmares in 2 stroke engines. God air/fuel ratio is paramount.I’m gonna put new heads, pistons and rings the carbs I haven’t touched , but I’m curious if this can cause the cylinder to go bad and should I clean the carbs out just for shits and giggles??
Once you rebuild it make sure you have no air leaks whatsoever and have proper carburettor tune up.
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Hahahah the third option sounds like reasonable optionDiming is another thing. You can solve the "problem" doing 2 things or three.
1- putting a batt.
2- putting a capacitor who will act like a batt.
3- man up, and dont care about diming under 1000rpm....
I chosed the 3th option ;'l
Envoyé de mon SM-G965W en utilisant Tapatalk
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Good, means you've got all the tools needed. Do the compression test, just to give you rough idea in what state the bike is.Hi I just bought a brand new 2001 Yamaha banshee took it out on the trails over the weekend and when I got home to wash it off I noticed that the left cylinder was backfiring. The bike ran perfect all weekend until I washed it off I swapped the plugs to the left side and still the same thing I also swapped the coils and still left side backfires and pops carbs are in sync no recent work, my next step is a compression test next. Any info would be a great help as this is my first banshee but I am very mechanically inclined I own a auto shop so the work I can do but this is just uncharted territory! Thanks
Leave it to dry, maybe water got in somewhere where it shouldn't be, than try to run it.
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I'm doing this for my own sake, just something new to learn, so I'm trying to do it as cheep as possible. There is no point spending 1200 bucks on something I'm not going to make mone from.
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I do because if it's shit why would I let someone else end up with pain in the bum like me.You don’t need to report if you choose the last option.
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Sharing is caring, peace brother
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Thank you guys for the response, I really appreciate it. I ordered Chinese copy of foredom because I'm a cheep fuck, now we will see if it's any good or it's a bust. I'll report here if it's good or I suck cock.
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Hi guys, question for all people who do porting.
What tools do you use when doing it.
Dremell, foredom, what hand peace etc?
Does anyone have stock ports map?
I'm in a quarantine and have two weeks to go so would like to use that time to have look at stock port shapes and plan my porting.
Many of you will think what a lazy bastard, "Go, copy them yourself" but I'm locked up in a hotel room 30 miles away from home and can't really ask my wife to tear the bike apart for my boredom sake.
Thank you in advance, cheers
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He either sold it or fixed it by this time.
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To be honest, never had to do this so have no clue.Some aftermarket clutch perches require a cable housing spacer.
And for the record, I completely disagree with that video. No reason not to adjust it by the manual.
Unless shit in the case is worn out.
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If the perch is all the way out and the cable is still lose than you will have to take the clutch cover off and do it that way.From from the pressure plate?
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Just adjust it and it should fix the problem.
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So your clutch cable is loose?
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By the way, I would use just cylinders, wouldn't use their pistons.
When it comes to pistons I would definitely go reputable route.
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I know but most used ones around me are so far gone that you can't do anything with them any more and, as I live in the very asshole of the world, shipping to here is quite expensive from USA. USA is only place where you can still get decent used set of jugs.Boris,
I don't know what kind of grade the aluminum is or if that would affect how the material reacts when cutting into it. I would try to find some used ones for practice.
Anyway I wouldn't really use it much, once I figure out what to do I would probably go 421 and welded crank, and do my port job to it, but now I'm talking in 2-3 years time.
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If you have cheep compression test they often don't have check valve at the very bottom, where it screws into the cylinder and don't read right.
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Banshee bouging out
in Banshee Repairs and Mods
Posted
What mods do you have?
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