Brap_Brap_Banshee Posted January 27, 2014 Report Posted January 27, 2014 I recently traded my raptor 350 for a banshee and the night i got the banshee she ran mint and i couldn't find a problem. It was like this for a few days but after that it just started getting worse. Its just a bunch of problems adding up. First problem is sometimes my banshee will start 1 kick some times it will never start. I believe it is something electrical because every time it wont start all i do is pull the plugs while in the boots kick it over a few times and there wont be spark. If i kick it over about 5 times it will start sparking and when i put the plugs back in she starts first kick. Next problem is she will bog like crazy sometimes and even if you try to hold it open flames shoot out of both exhaust! But on other days she will rev perfectly fine. Also sometimes it will run on only one cylinder and sometimes both. If i try to ride it first and second gear powerband are usually fine but once its in 3rd it wont hit powerband and it only fires on one cyl and in order for me to get it into power band i have to let off the throttle and back on until she wants to go. And another problem is i got coolant in my bottom end im not sure how that got in there but every time i drain the oil and put fresh oil she still get more in there somehow. And last im not sure if this is a problem or not but if i put my hand over the exhaust of the left cyl i feel more coming out of it than the right like the exhast is harder and also my right exhaust smokes a when the left one does not after its warmed up but no oil comes out so im not sure if its a crank seal or not. Im willing to replace parts but the problem is i dont know what needs to be replaces or done! Seems like it needs everything lol i was thinking of putting in a vitos crank with some new wiseco pistons and see how that works out but i think its more than that. Sorry for cramming everything into one post but any help will be greatly appreciated. Thanks Quote
wayne_smith97 Posted January 27, 2014 Report Posted January 27, 2014 1st thing pull carbs and do a leak down test and compression test 2 clean/rebuild carbs. Then check coil and stator ohms Check ground make sure it's grounding good and tight 1 Quote
Brap_Brap_Banshee Posted January 27, 2014 Author Report Posted January 27, 2014 What is a leakdown test? and I did a compression test and got around 115psi in each cyl so i dont think compression is the problem and i think its accurate it was a snap on one so yeah lol. I ordered a new coil and my friend is giving me a cdi if that would do anything and what is grounding? I never went to far into working on banshees just top ends so im not so smart with it sorry. Quote
m671054 Posted January 27, 2014 Report Posted January 27, 2014 Coolant is probably waterpump seal or tube oring. most likely wp seal though. if compression and leak down check out pull clutch cover and check it out. the ignition issue could be any thing. if it was me i would get new coil wire ends and a new harness. 1 Quote
Brap_Brap_Banshee Posted January 27, 2014 Author Report Posted January 27, 2014 Ordered a coil just waiting on it and my friend said i should replace the whole water pump with a billet one for reliability because apparently they seals go alot? Is this the only way coolant could be getting in there if it is i will just replace the whole thing. I wanted to make this quad somewhat reliable without spending a ton of money but now i got all these problems but i wont give up on it Quote
03DMshee Posted January 27, 2014 Report Posted January 27, 2014 If you have anboverflow bottle make sure the lines are not mixed up with you case vent lines.... 1 Quote
m671054 Posted January 27, 2014 Report Posted January 27, 2014 New oem pump impeller in my opinion will work fine. you need to tear it down to see whats leaking. how was the compression and leak down test? stop listening to your friends. They know nothing 1 Quote
sleeper06 Posted January 27, 2014 Report Posted January 27, 2014 TORS system , parking brake switch ill say 9 outta 10 stock components are good 1 Quote
oldskool Posted January 28, 2014 Report Posted January 28, 2014 My first thought was PART IT OUT, but if you want to keep it and show it who's boss. Get a manual, start learning your banshee, take your time and address one problem at a time. 1 Quote
troyzstang Posted January 28, 2014 Report Posted January 28, 2014 Just my opinion but if you traded a 350 warrior / raptor you're already ahead of the game. Like oldskool said. " start learning your banshee" These bikes are easy to learn and maintain. Good luck Troy 1 Quote
Brap_Brap_Banshee Posted January 28, 2014 Author Report Posted January 28, 2014 (edited) Alright so I did my research on these leakdown testers so im gonna start putting one together so i can test it. I will be back with results soon enough and I also wanted to ask if this was the water pump seal that was mentioned before because i happen to have one laying around so i can just throw it on if it is it to solve the antifreeze in bottom end problem. http://www.ebay.com/itm/Yamaha-Banshee-water-pump-cover-gasket-fits-all-years-/110990044734?pt=Motors_ATV_Parts_Accessories&hash=item19d785ae3e&vxp=mtr Thanks for all the help guys hope to have this thing mint by summer so i got some time ill be back with results after i finish my leakdown tester. Also tors and parking brake are removed already. Edited January 28, 2014 by Brap_Brap_Banshee Quote
oldskool Posted January 29, 2014 Report Posted January 29, 2014 That is the pump cover gasket. Pull the cover off, then pull the pump/impeller out and you will see a oil seal also. 1 Quote
Starwriter Posted January 29, 2014 Report Posted January 29, 2014 That is the pump cover gasket. Pull the cover off, then pull the pump/impeller out and you will see a oil seal also. Without owning a Clymer manual, the OP is likely to start prying on the impeller with a screwdriver. 1 Quote
sleeper06 Posted January 29, 2014 Report Posted January 29, 2014 Water pump seal has nothing to do with c ollant in bottom end 1 Quote
m671054 Posted January 29, 2014 Report Posted January 29, 2014 He stated coolant in the oil. sure thats really the transmission. 1 Quote
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