VintageMoto My Ride Posted July 29, 2017 Hey guys, I overheated my bike and blew a head gasket and flooded the cylinder with coolant I was wondering where to go from here. I was told its an easy fix but where do i start? what parts do I get? Thanks! Share this post Link to post Share on other sites
S.O.A.N.Z Posted July 29, 2017 drain your oil and coolant - new head gasket http://www.ebay.com/itm/NOS-Suzuki-OEM-Gasket-Cylinder-Head-84-RM125-E-11141-14510-/121132248552 Share this post Link to post Share on other sites
Mike Moto My Rides (2) Posted July 30, 2017 Hey VintageMoto, If you or previous owner haven't done a top end in the last 80-100 hrs check your shop manual I would do a complete top end, it's not too expensive see link below, http://www.motosport.com/product?adpos=1o1&cc=us&creative=188670676285&device=c&gclid=EAIaIQobChMI3Yu_xsqx1QIVwoSzCh3RkA-WEAQYASABEgIAEvD_BwE&key=Wiseco-ProLite-Piston-Kit-2Stroke&matchtype=&mmy=suzuki%3Brm125%3B1985&mmy_source=pdp&network=g&product_id=WP-COMBO&psreferrer=https%3A%2F%2Fwww.google.com%2F&pssource=true&segment=badger Have all parts on hand, tools, rags, olis, grease, coolant, shop manual, check youtube video's for 125 top end rebuilds and book mark the one's you like, take pictures as you go if needed and reverse the order when putting it back together, wash off the bike before you start, take your time and good luck Share this post Link to post Share on other sites
VintageMoto My Ride Posted July 30, 2017 Top end was just put on it a week or so before she blew the head gasket. How do I get all the coolant out of the cylinder and wherever else it may be? Share this post Link to post Share on other sites
Greenwrench My Ride Posted July 30, 2017 Flip the bike upside down with the jug off like changing a tire on a BMX been there ! It will be fine some people flush it with diesel or kerosene but I just use a lil pre mixed gas then flip it back over and let that run out Sent from my Moto G (4) using ThumperTalk mobile app Share this post Link to post Share on other sites
VintageMoto My Ride Posted July 30, 2017 I'm a noob when it comes to this kind of stuff so how would I go about flushing it? Share this post Link to post Share on other sites
Greenwrench My Ride Posted July 30, 2017 Take cylinder jug off , I take the piston off the rod too but you don't have too pour lil gas or diesel down in the bottom end flip the bike upside down so it and coolant come out and use the kick starter to turn motor over a few times flip it over and put it back together Share this post Link to post Share on other sites
Mike Moto My Rides (2) Posted August 4, 2017 Dude! buy a shop manual for the bike, Read cylinder tear down instructions, If you don't know what your doing, get a buddy to help, If you don't have anyone, Do what Greenwrench said, Or take it to the shop! Share this post Link to post Share on other sites
