If you do not have any free play / slack at the throttle grip, this could be the cause of the problem. 5.0 out of 5 stars Five Stars. I am trying to replace the upper half of the throttle cable on my kids' 2004 PW50, and I need some help! The replacement throttle cable seemed too long and the grommet on the bar side would not stay in the housing until the adjustment was backed almost all the way out so I swapped it again with the OEM cable. Help! One for the throttle, the other for the oil pump. 1 thought on “ Yamaha PW50, PW80 Y-Zinger, BW80 1981 – 2002Clymer Owners Service and Repair Manual ” Matthew May 24, 2019 at 8:03 am. I digress, the piston is allowed to move a specified amount based on the throttle position, so the more throttle you give it, the more the piston is allowed to displace. Finally got the throttle kink worked out and the throttle snaps back and will engage and lift the slide up and down. Helpful. My son is supposed to have his first race of the season tommorrow-he's gonna be bummed if I … No spring means no snap-back. If the cables are not seated correctly in the little junction box, it can cause the throttle or oil pump to both not fully close during operation. He just broke the throttle cable, so I bought a new one and installed it but, it has too much slack-I have both adjusters all the way out, and there's still like an inch of play. Once that screw is out just pull straight up and both the throttle valve and choke valve will pull out … Read honest and unbiased product reviews from our users ... Cables are actually too long for the Yamaha PW50. Cold ignition system became a few or loss of plastic layer is very inexpensive or loss of efficiency because it acts as changing or hot full emissions . Throttle freeplay is a terribly overlooked adjustment that can change both the reaction and comfort of your motorcycle. Hi guys, Just ordered and replaced the throttle cable on my sons PW50 but there is an issue. Here is the way it is put together: - throttle cable goes from handgrip down to "connection point" under tank. There should be a single screw holding the top cover that the ends of the thottle cable and choke cable enter into. SOURCE: replaced throttle cable on pw50 but can't seem to get it adjusted If I understand your problem correctly this may help. I originally wanted it replaced because the stock cable was wearing and beginning to fray where the cable meets the throttle slide in the carb. 0 Comment Report abuse Jeffery Owens. Now the problem is that the new cable and every cable … Modifying a throttle cable can be extremely discouraging. This problem is only because the cable sheath is 2mm too long between the ends (where the cable comes out). The PW80 would be similar due to method and displacement, unlike say a PW50 which may only be 1cc per three minutes at idle. Find helpful customer reviews and review ratings for Yamaha Kits Bike PW50 Throttle Cable Assembly 1981-2009 easy to install at Amazon.com. Scanned thru the video and its just as I recalled. This is the problem I have a 1993 pw50 for my daughter im trying to get running right. There should be a spring just a bit smaller diameter than the slide that mounts between the top of the slide and the bottom of the carb cap. My son has a 1996 pw50. It idles fine and when you give it gas (on the kick stand) it seems ok but when my daughter hops on it it bogs out ( no not my 14 year old my 5 year old ) it doesnt duy but it lacks the power or the grunt facter.