THOR1 Posted February 8, 2005 Report Posted February 8, 2005 A month ago I was washing my shee and rode it down to my garage and it suddenly lost all power. I could start it but when I give it gas it sounds like its sucking air. I took off the seat and made sure i didnt forget the towel i had covering the intake. -That was good i had cleaned the k&N and put it back in. -I was out of plugs so I pushed it in and went and got some. put new plugs in couple of days later and it was fine Well I went ridin trails Sun. and rode for about 2 hrs and same thing happened. I can start easily and it will idle, but when I give it throttle it boggs like its sucking for air? Put some new plugs in on the trail and nadda! I took it down to a friend of mine and we - took off the carbs ( tuned fine and clean) -Checked compression ( good ) Now where do I go? Im stuck now. My mods are only FMF gnarlies, lightened flywheel, twist throttle. Havent done any major mods to it yet? Quote
THOR1 Posted February 9, 2005 Author Report Posted February 9, 2005 Alright I went back and checked compression again and Im reading 98 and 105! I cant believe Im loosing compression like that! I have hardly rode her! I bought her brand new in o3 and was out hurt for a yr. Only one year of ridin and already a ring maybe? What do yall think? Should I go ahead and get some wisecos? When do most of yall change? Later Chad Quote
bigboybanshee Posted February 9, 2005 Report Posted February 9, 2005 If those numbers are accurate then you definitely need a rebuild. There's no real way to measure how long your top end will last, a lot of factors have to do with riding conditions, how hard you ride it, and how well you put it together. Quote
1sreamin350 Posted February 9, 2005 Report Posted February 9, 2005 Im in the middle of a rebuild. my compression numbers were just about the same as yours. The side that was reading 90 had a piston ring missing. The only trase of it was in the shredded up metal in the dome, now I have to get a new head. Oh well, good luck man! Quote
THOR1 Posted February 9, 2005 Author Report Posted February 9, 2005 Thanks for the info. What do yall recommend.... buy a kit? I had seen on rocky mtn atv they had the wiseco for like 62.00 a piece including rings. Thanks Quote
bigboybanshee Posted February 10, 2005 Report Posted February 10, 2005 Absolutely, buy a kit. You can find them on ebay all day long for between 120-160 depending on the seller, and the kit includes the pistons, rings, wrist pins, gaskets, and practically everything you need to complete the top end job minus getting the cylinders bored. http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=43971 http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=43977 http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=43977 If you do go the ebay route, I've bought two top end kits from sledpartsguy, and they showed up at my door 3-4 days later; very professional guy. What bore are you on now? I'll be happy to help you get going in the right direction, I've been in your shoes before! Quote
THOR1 Posted February 11, 2005 Author Report Posted February 11, 2005 Absolutely, buy a kit. You can find them on ebay all day long for between 120-160 depending on the seller, and the kit includes the pistons, rings, wrist pins, gaskets, and practically everything you need to complete the top end job minus getting the cylinders bored. Actually I havent done any motor mods as of now. Still running the stock pistons. Should I stay standard or go ahead and bore? If i bore say .030 what all else will i have to get with the kit. This is a first for me! Hell but im lookin forward to piddlin! Not sure what all Im gettin into when i start doing magic to the motor. Thanks for the help. Chad url=http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=4524949274&category=43971]http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=43971[/url] http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=43977 http://cgi.ebay.com/ebaymotors/ws/eBayISAP...&category=43977 If you do go the ebay route, I've bought two top end kits from sledpartsguy, and they showed up at my door 3-4 days later; very professional guy. What bore are you on now? I'll be happy to help you get going in the right direction, I've been in your shoes before! 320597[/snapback] Quote
THOR1 Posted February 11, 2005 Author Report Posted February 11, 2005 I screwed up on that reply! im still runnin stock pistons. Say I bore .030 will I notice a gr8 amount of difference? I was gonna go with wiseco set I recon? Anyway if I do bore it what all else will I need to do with the added compression I will have then? will I need to buy a new head and domes? I know im asking alot of questions but Im a first timer when it comes to motor mods! Thanks for the help fellas. Later chad Quote
banshee tuner Posted February 11, 2005 Report Posted February 11, 2005 Just go .020 over so you will have 3 more bores left before having to use sleeves or by new cylinders. Boring is not the way to achieve power. Quote
bigboybanshee Posted February 11, 2005 Report Posted February 11, 2005 Banshee tuner is right...you will not gain horsepower by boring the cylinders. I agree, you should go with a .020 over set of pistons and have the shop bore the cylinders to match them. Quote
THOR1 Posted February 11, 2005 Author Report Posted February 11, 2005 Thanks for the help,. Im gonna see what kinda deal I can find on a kit! Later chad Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.