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December 22nd, 2013, 01:13 PM
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#1 |
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ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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2007 ninja won't run? what to do.
OK. A very dear old friend brought me his son in laws bike. Its a 2007 and was ridden daily from 1200 miles when he got it . To 15000 miles it has now.
He called a year ago and said it was running poorly. I said pilot jets . But just a guess. He took it to a number of shops. They all fiddled around and gave it back. By the time I got it. Hauled from another state. It would not start. First thing I do is a compression test. 30 left 80 right. You need a min 125 psi cold or the engine will not start. I pulled the head and checked the valves. Adjustment was good. And the seal of the valves was tight. but carbon was built up all over the intake valves. The cylinder looked glazed and there was carbon on top of the piston. I pulled the carb off and sure enough the pilot jets are clogged and the idle screws are three turns out. The problem started with the carb. But ended with a some what bad engine. He is very good about oil changes . That saved the bottom end. But I am going to replace the pistons and rings. And hone the cylinder. Next I will rebuild the head with new valves and valve stem seals Then replace the carb pilot and main jets. After assembly with new gaskets a new cam chain tensioner and fresh oil I will balance the carbs. Total cost of the parts from cheap cycle parts was under 300 bucks. Plus the jets and valves. The whole package is less than 500 in parts. Not bad for an old bike. Should run great when its done.
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Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja |
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1 out of 1 members found this post helpful. |
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December 22nd, 2013, 01:53 PM
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#2 |
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ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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Can someone help me out. I never use factory parts. JE pistons.
The rings from Kawasaki are marked R on the silver one. And NR on the black one. I can't find my first gen manual. Can anyone tell me which ring goes on top.
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Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja |
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December 22nd, 2013, 05:23 PM
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#3 |
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ninjette.org certified postwhore
Name: Eric
Location: Iowa City
Join Date: May 2009 Motorcycle(s): 2008 Kawmeracchi 350 2010 Project X Posts: A lot.
Blog Entries: 54
MOTM - Sep '18, Feb '16
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I found my service manual and assembled the bottom end. Now just some head work left to do.
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Top speed 123.369mph. Ohio mile Worlds fastest 250 ninja |
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1 out of 1 members found this post helpful. |
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December 23rd, 2013, 11:31 AM
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#4 |
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ninjette.org dude
Name: 1 guess :-)
Location: SF Bay Area
Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much.
Blog Entries: 7
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Nice work.
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Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered) |
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December 23rd, 2013, 12:26 PM
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#5 |
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ninjette.org guru
Name: harry
Location: Central Florida
Join Date: Sep 2013 Motorcycle(s): 2006 Ninja 250, 2004 Buell XB12s, Honda 110 Elite Posts: 332
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Ok, the uninformed need to know. Which ring goes where? My intuition says that if neither ring is obviously a scraper ring, the silvery (Moly or Chrome) would go on top, with the black (Iron or iron/moly) on the bottom.
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"They don't pay me enough to ride this thing!" Kenny Roberts after winning the Indy Mile on the TZ750 powered Grand National bike. |
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