Question about 1986 Yamaha RD 350

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How much compresion should a 01 banshee have on each cylinder

What is the lowest compresion you can have

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Anything under 105 psi you definately need to rebuild your top end.new pistons/rings and a bore.A stock cylinder banshee with factory pistons should average around 125 psi.After a bore and new pistons you will be around 135-140 psi

Posted on May 30, 2009

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The bike will still run even at 7:1 or a little lower, but the specifications call for about 10:1.

Posted on Feb 12, 2009

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Posted on Jan 02, 2017

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1 Answer

My Accent 2000 is misfiring on cylinder 3 ?


Check plug lead for excessive resistance
Check sparking plug
Check for tracking in the ignition circuit
Check compresion on that cylinder
If petrol injection check injector on that cylinder

All the best Cliff UK

Aug 11, 2011 | 2002 Hyundai Accent

1 Answer

Ok I rebuilt my 97 banshee. Last fall it would backfire out of one cylinder. After rebuilding the compression is good and equal however it will not start under its own fuel system and when we spray mixed...


Hey Mike,
Sounds like your carburetors need a qualified professional to clean and set them... I have built several race banshee's.. the carburetors being perfect are essential to making it run good..
The compression should be at least 125PSI on each cyl. MINIMUM.

Aug 24, 2017 | Yamaha 2005 Banshee Base

1 Answer

Compresion in sump


HI I THINK IT IS BEST TO FIRST SHECK THE COMPRESION IN THE CYLINDERS, USING A COMPRESION TESTER FITED INTO THE SPARK PLUG HOLE, SPIN OVER THE ENGINE AND CHECK THE READING RECORDING IT, ON PAPER FOR EACH CYLINDER WHEN YOU HAVE COMPLETED THIS ON ALL 4 CYLINDERS CHECK OVER YOUR RECORDED NOTES, IT IS NOT ALWAYS LIKELY THE READINGS WILL BE AS SPECIFIED IN THE WORKSHOP MANUAL AS A BIKE OF 10 YEARS OLD WOULD HAVE LOST SOME OF ITS ORIGINAL COMPRESION, BUT YOU ARE LOOKING FOR A READING SIMILAR ON ALL 4 CYLINDERS, IF 1 IS SIGNIFICANTLY LESS THEN YOU COULD HAVE A PROBLEM WHERE THE PISTON OR PISTON RINGS HAVE FAILED, 1ST TRY THE AFORE MENTIONED CHECK BEFORE YOU START GETTING INVOLVED IN ANY EXPENSIVE REBUILD, IF YOU WERE TO REMOVE THE ENGINE OIL FILLER AND RUN THE ENGINE, IT WOULD BE QUITE NORMAL TO EXPERIENCE SOME SORT OF PRESSURE HERE ALTHOUGH IT COULD GET MESSY AS OIL WILL EMERGE, HOPE THIS HELPS

Dec 05, 2010 | 2000 Yamaha YZF-R6

1 Answer

2002 FORD EXPEDITION.WHERE ARE THE DRAIN LINES FROM THE MOON ROOF EXITING THE VEHICLE?


hello, the drain lines should be on the both sides of your car front windscreen, because this is the lowest place; if you are trying to untape them, must not use a very sharp tool, the best that it can be done is to use compresed air!

Oct 24, 2010 | 2002 Ford Expedition

1 Answer

I cant kill the banshee how do you kill it


well not all maps have the spartan laser but you must have that or be really skilled and you can use a rockect to take the banshee out of the sky.

the spartan laser must be charged up be for you can take out the banshee.


happy banshee hunting :)

Apr 08, 2010 | Microsoft Fable 2 for Xbox 360

1 Answer

How to fix a cooling leck on my banshee 350 1990 i need a pic of the moter


go to bikebandit.com and look up yamaha 1990 banshee, they have all the schematics and parts you need. if it's leaking from the radiators, try bars leaks from your local parts stores, from a hose, tighten otreplace hoses, if itcoming from the top end (cylinders) replace your head gaskets/o-rings, if you are getting water in the crankcase oil, you need a new impeller shaft seal and if it's just coming out of the overflow bottle (under the seat) you have too much antifreeze in in or you are overheating fror some reason, usually running lean, too slow or internal engine damage...

best of luck and happy riding

Mar 16, 2010 | 1986 Yamaha RD 350

1 Answer

Low compresion on one cylinder on 2.5 taureg


Low compression can be caused by either worn or stuck piston rings or by a valve seating problem (which can be in the valve seat, a worn cam or in the rocker/push rod assembly between them). The way to determine is to start with a cool engine (meaning the rings are dry), run compression test on the cylinder in question (or all if you like, I would) then put a little bit of oil in the cylinder/cylinders and re-run the test. If the compression comes up it is the rings. If not it is in the valve not seating properly. Of course after you put oil in the cylinders when you start the car don't be alarmed at it smoking for a couple of minutes until the oil burns out. That's normal.

Nov 13, 2009 | 2006 Volkswagen Touareg

2 Answers

Engine overheated & shut down i let it cool down for 12 hrs. bled fuel system added water installed new coil engine turns over freely but no fire on 3 cylinders?


The fact that it needed water and you know have you no fire on a cylinder means you prabably blew a head gasket. Does it blow out steam when you start it from cold now. You will need to check compression on all cylinders and do a chemical block test for fuel in the coolant first in order to rule this out or in.

Sep 02, 2009 | 1999 Ford Mustang Cobra

4 Answers

Banshee wont rev


Usually related to TORS, specifically the safety switch in the clutch/park brake assembly. If it's defective the engine won't rev. Solution: look for a TORS removal kit.

Jun 16, 2009 | 1986 Yamaha RD 350

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