Question about 1990 kawasaki ZXR 250
Hey there guys i just got my bike back from my mech after he put on some 2nd carby and put some 2nd pistons and barrels and i cant get the bike over 10000rpm it feels like it just losser power and after awhile if i am on the highway it will get worst n i can have full throtel n only be doin 60 ks but the bike doest get 2 hot dont no why they didnt put new rings in
If done carefully, second hand gear is ok so long as it has been handled properly, and the second hand top end is a complete kit, of KNOWN origin, you could get away with not replacing the rings, would depend on just how much you wanted to compromise the bikes repair. At any rate, you get what you pay for. New rings is a small cost against having to tear the engine down again if the rebuild ends up with no compression or blowing smoke,.... I would have put new rings in it.. Do a compression check across all cylinders to see if all looks ok.
If the carbies came of a wrecked bike(as did the other bits, they may well have issues with sitting around/stale fuel. Hopefully your mechanic DID clean up properly and throw in a gasket/service kit for carbueration.
He may not have included a tuneup in the price for the repairs, and the bike may need this also if the carbs are off another model(exhaust system on doner bike may be different also upsetting the tune).
I would be going back to the guy that did the work and see what he is prepared to do for you, or cut a deal on tuning the machine up.If you aren't too happy with the outcome you have now, time to find a new mechanic.
Aint nothing like a freshly tuned motocycle;)
Good luck with getting it sorted, happy to talk to you more. Cheers
Posted on Jan 02, 2009
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Mar 15, 2017 | Motorcycles
Feb 13, 2016 | Honda Motorcycles
Feb 15, 2015 | GAS Motorcycles
Mar 30, 2012 | 2000 Husqvarna TE 610
Nov 14, 2010 | 2004 Honda CBR 1000 RR Fireblade
Jun 21, 2010 | 2000 Yamaha DT 125 R
Mar 29, 2010 | Harley Davidson XLH 1000 Sportster...
Sep 26, 2009 | 2003 kawasaki KDX 220 R
152 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: