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Similar Forum Topics
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By PIYIRIO
Hi all - I recently had a shop fix this quad and it hasn't been right since. The jug was resealed as it was leaking, the rings were replaced, and the valve stem seals replaced. Shop said the cylinder walls were great so nothing was done there. The motor still smokes, heavily on startup and all but quits once warmed up. Enough that I can live with it if I can fix what I came to ask about. I mentioned this work because since I've gotten it back it seems like it has power but tops out at a much slower speed than before. It's old so I don't have a speedo but I pulled out my phone at it tops out at 25 mph. I know before the work, I was getting up to 45+ mph... It's so bad, my 10 year old daughter is pulling away and straight leaving me in the dust with her governed Polaris 90.
Given the work done, what are some thing I could be the cause of such a drastic difference? I immediately thought timing but the marks appear to match up with a youtube video I found... no idea if it's correct though. It sat in another shop for 2 months and they gave me an $800 quote just for the starter... it pull starts fine.
FYI: I would take it back to the original shop to figure out but I had some issues that make them a no-go for me.
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By marcosphoto
Hi folks, a little disparity brought me to this forum. To set the stage, I'm a 35 auto tech in the industry 37 years now. Licensed motorcycle tech also, 20+ years. I race superbike and motocross. Always done most of my own standard work (outside of specific race machine works) including building my own race bike engines. Now that skills are out of the way, onwards and upwards.
Helping a neighbor with his old quest 500, right front axle seal leak. Well, looks like everything else - right? Wrong! Initially I noticed the CV joint was lacking large lands to place prybars on to pop it out, rather a thin shield like ring very close to the diff seal. Knowing the ring appeared quite delicate, I only pried gently and the CV popped out. However this is where things get weird. Came out only around 7-9mm then hung up again, felt like the clip was catching inside the diff. So spun and pulled, spun and pulled until I was blue in the face but no success getting it out. Also while it was out, I could see that the delicate ring around the outer circumference of the joint was actually the sealing surface where the seal contacts, instead of the norm where the seal rubs inside the diff much deeper and stays cleaner. I've never seen a joint like this, also the service manuals photos which apply to 650 also reflected a standard joint I am accustomed to rather than this one I was fighting with. Rather than break something in the diff, I decided to stop while I was ahead and reassemble the machine before something broke. (The joint would pop in and out of place easy enough, just wouldn't slide out further than 7-9mm). While the joint was a little out and sealing surface exposed, I cleaned the seal and sealing surfaces clean as possible before putting back together. Seems to be holding for now, but eventually I'm sure the leak will come back. Any thoughts as to why that CV joint just refused to come all the way out?
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By heath
i just bought a yamaha moto 4, i have sprayed 'start ya barstard' into the carb and on the spark plug and it doesnt even fire! although when i have the spark plug on the outside of the motor it shows spark, the engine also leaks oil from the starter,
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By DrtyGrlKristin
Just thought I'd start a new thread for newbies to the site!
If you're new here, tell us who you are, where you're from and what you ride!!!
Lets get to know each other a little better shall we?
I'm not new to the site, obviously, but...
I'm Kristin from Denver!!! I ride a 2008 Yamaha Rhino. She's my muddy baby!!!!!! Several aftermarket parts on her. She's good to me! We try and ride every weekend. This weekend we're off to MOAB! :woot:
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