Problem!

[streetshee]

hi guys,my shee died on me today,went for a quick spin before i was gonna change the main jets,was full throttle and then the right cylinder lost all power and backfires like a rocket launcher,but real loud too,nearly blows the pipe off the cylinder!,she wont accept any throttle,just coughs and backfires and dies,havent realy looked at her but tryed swappin the plug leads over,no change,there isnt any mechanical noise from the motor,compression feels good,the thing is i ported her myself,does anybody know of anything else that could of broken or gone wrong with the motor,eg, reeds broken or piston skirt damaged ect? carbs are clean,filter is clean,plugs new.help......`??????? cheers.

[ledofthezep]

Have you checked for air leaks...very common with backfiring issues. Other than that,...I wonder if something went fishy with the stator?

[streetshee]

but only the right cyl,when i change plug caps over its still the right cyl. since i ported her ive done over 500 miles,and i must say that once shee seized very slightly,but was ok after..........

Edited May 20, 2004 by streetshee

[ledofthezep]

If you can get it started, take some carb cleaner or WD40 and spray along the intake boot of the right carb & see if it's sucking air(should rev up if that's the case). Is the choke tube in place on the carbs?

Edited May 20, 2004 by ledofthezep

[streetshee]

i look tomorrow cos shees in my wkshop,(i borrowed a craptor to come home from wk today,ohmyfcukingodmanwatapieceashit!) but i didnt see anything obvious on the air leak side.could a prob with the reeds make her backfire?

[ledofthezep]

could a prob with the reeds make her backfire?

Most definately, that would be my next suggestion after checking for leaks & seeing if the choke tube's in place.

Edited May 20, 2004 by ledofthezep

[streetshee]

thanks a lot zep for prompt reply and help,another thing,can i use ypvs base gaskets for the cyls? they are made of paper and shees are so a graphite matierial with a blue line of silikon as well??

[ledofthezep]

No problem.

 

I don't believe you'd have any problems....may want to check back for other replies on though for sure on the gasket. Not my cup-o-tea there.

[streetshee]

because i put em on when i rebuilt her!!!! got sent ypvs gaskets instead,so anyway i put em on with a bit of silikon,after about 250 miles they both started leakin at the front under the exhausts,so i bodged em up with 2 component glue!! just untill the new ones come,its just that im now wondering if the ypvs are thinner than shees?

[ledofthezep]

Couldn't tell ya.

[streetshee]

ok,shees fcuked! took her apart today,the right piston was nearly burnt through in the middle and the exhaust side of the piston at the top down untill the top ring had melted away,(if im explaining myself well enough?) on the back of the piston was big seize marks above windows,bore skuffed and bit of piston stuck on it!!! i couldnt see any obvious air leaks,maybe because i used ypvs base gaskets? (paper).oh well,150 bucks in the pan.

[streetshee]

i was just thinking,ive got some rd 400 rods lying around(complete crank new rebuilt ) and wondered,if i used the rods,would i have a 10 mm longrod? and what or where should i get a spacer plate? do i need blaster pistons or something,i dont know im confused with all this longrodstrokerblasterpistonspacerplatestuff! does someone have the time to give a detailed explanation? (or will even the rd 400 crank fit a shee??)

Edited May 22, 2004 by streetshee

[wv banshee]

were good place to get a 10mm banshee crank thansk andrew