Banshee goes WOT

[blowit]

the fly wheel or clutch basket hasnt been touched. ever.

 

well i give it some gas. maybe half throttle in nuetural(sp) and she will just go WOT.. hit the kill switch. pump the gas a few times and start her up and shes idleing away fine. touch the gas a to about half throttle again and WOT. how is it a frayed cable? when she goes WOT the sliders and back down to where there suppose to be at idle. but im going to try it again today. and if it happens off to yamaha for a new cable i go.

oh trust me it is haha. ive made that mistake before.

 

 

If you are sure your slides are synced and not hanging up when you drop the throttle, it is an air leak and probably a big one. Use propane gas without flame to run around the engine and detect an air leak. Sounds like a crank seal or case half leak. You can easily check the throttle cable for damage. Like I say, if you have a tuner you can take it to, they would probably spot it quickly. Lean run-on is an obvious sound.

 

 

Brandon

[AJC]

thanks, ill try that.

 

but did i mention that the bike runs perfect than when i let her lay up over night and start her the next morning it will go wot again?

 

like right now she runs fine.

but tomorrow if i go out and start her i bet she will go WOT again.

 

im going to check it with propane right now and ill get back to you.

[blowit]

thanks, ill try that.

 

but did i mention that the bike runs perfect than when i let her lay up over night and start her the next morning it will go wot again?

 

like right now she runs fine.

but tomorrow if i go out and start her i bet she will go WOT again.

 

im going to check it with propane right now and ill get back to you.

 

 

Turn your air screws in to .25 out from seated. Possibly just lean on the bottom but that is a stretch for this problem.

 

 

Brandon

[Aussie Quad Racer]

old vm mikuni carbs with teflon coated slides commonly partially stick when cold or wet, thats why yamaha put tors on, the old rd350 road bike had problem with this in the rain when they got older, your solutions to the problem is

 

1 refit the tors, (its a brilliant saftey device that just might save your ass one day)

 

2 polish the inside of the carb where the slide runs with metal polish (seamed to work for me)

 

3 find some chrome slides (good luck)

[AJC]

Turn your air screws in to .25 out from seated. Possibly just lean on the bottom but that is a stretch for this problem.

Brandon

 

ill try it tomorrow. but i just had another run on her. seems to be fine again.. for so long.

 

 

old vm mikuni carbs with teflon coated slides commonly partially stick when cold or wet, thats why yamaha put tors on, the old rd350 road bike had problem with this in the rain when they got older, your solutions to the problem is

 

1 refit the tors, (its a brilliant saftey device that just might save your ass one day)

 

2 polish the inside of the carb where the slide runs with metal polish (seamed to work for me)

 

3 find some chrome slides (good luck)

 

ill try the polish tomorrow.. im just sick of looking at the bike for one day.

 

i called yamaha. and there service charge is 54.50 an hour. so i want to avoid that place.

oh and a throttle cabled is 74 buck.. getting robbed there as far as i know

 

and i tried the propane thing.. nothing happended. went all around the motor, no flame

Edited December 1, 2007 by AJC

[AJC]

done the polishing up so it was just like a mirror.

 

seemed to run perfect.

but i cant really judge it yet.

 

it happends to run fine than the next day she'll run wot again.

 

so im going to let it sit over night and try her tomorrow. hopefully no WOT

[AJC]

i think the polish may have just fixed it.

oh well. the bike is put away now for the winter.

god damn snow