06 900 How do I diagnose a bad injector - HCS Snowmobile Forums

Fusion This is a brand-specific forum. Posts on this forum are assumed to be questions aimed at similar model owners, and are not looking for comments of a sarcastic or "bashing" nature. Please be aware that if you violate this policy you are in danger of losing your posting privileges on this website.The calling out or posting of another members personal information IE phone number or address is prohibited.

Like Tree1Likes
  • 1 Post By 85indy400
Reply
 
LinkBack Thread Tools
Old 02-14-2019, 11:46 AM   #1 (permalink)
Super Advanced Member
 
85indy400's Avatar
 
Join Date: Nov 2006
Posts: 100
Location: Conowingo, Md
Default 06 900 How do I diagnose a bad injector

I have a bone stock 06 900 that I bought new as a leftover in 08. I'm in Md and for the most part, don't get any riding time unless I take a trip. I have about 4,000 miles on it. Two trips to Maine, 1,000 each week and the rest in Pa a couple hundred at a time. Due to health and lack of snow, I haven't ridden in a couple years. i think this may be my problem. I start the sled every couple months and have plenty of Stabil in it, but I think it may have finally caught up to me. I started it recently and its only running on one cylinder. It won't hardly rev and plenty of smoke.
I siphoned the old gas out and added fresh. Pulled the plugs. One looks normal, the other just slightly oily. Replaced with new NGK and tried again. No change. One plug looks normal, the other(clutch side) only slightly wet with oil. Appears no gas. Started again and checked exhaust, clutch side is def cold compared to other side.
So, that's my story. How can I pinpoint this to a clogged injector? Do I really have to pull the engine to get them out?
85indy400 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 02-16-2019, 09:06 AM   #2 (permalink)
Super Advanced Member
 
OutKast's Avatar
 
Join Date: Nov 2004
Posts: 8,986
Current Sled(s): 20 SBA 850,17 SBA 800,15 INDY 800,13 SB 600
Previous Sled(s): Couple D8's
Location: Eastern Canada
16-17 Mileage: 1400
Default

You will have to take the injectors out and have them flow tested. I haven't ever taken out a set on the Fusions, but I wouldn't think the engine would have to come out. If you can get at the fuel rail you should be able to see the injectors and get them out.
But if you can get it going, have the track raised on a stand and give it a good amount of throttle and Braaap it a few good times, taking it up to like 6500 rpms. This may clear up some unburned fuel and that may also be the problem.
__________________
Want to see the under powered Polaris 800 kick ass in stock and modded form...Click the links...
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
OutKast is offline   Reply With Quote
Old 02-16-2019, 09:41 AM   #3 (permalink)
Super Advanced Member
 
85indy400's Avatar
 
Join Date: Nov 2006
Posts: 100
Location: Conowingo, Md
Default

Will it hurt to let idle and bring up to temp without gas in the one cylinder?
It may be 10yr old BS but i read back then to let the engine warm to at least 120 degrees before hammering it. I've tried to do this every time.
85indy400 is offline   Reply With Quote
 
Old 02-16-2019, 10:19 AM   #4 (permalink)
Super Advanced Member
 
OutKast's Avatar
 
Join Date: Nov 2004
Posts: 8,986
Current Sled(s): 20 SBA 850,17 SBA 800,15 INDY 800,13 SB 600
Previous Sled(s): Couple D8's
Location: Eastern Canada
16-17 Mileage: 1400
Default

So you're sure there's no gas on the plug its just oil?
Sounds like a bad injector and also Have a look at the plug wires make sure they are secure and on the inside that the metal cap isn't bent and also make sure there's no carbon buildup inside the plug cap.
I would also say do a compression test, you never know, it may have been getting weak just at the time you shut it down and parked it.
__________________
Want to see the under powered Polaris 800 kick ass in stock and modded form...Click the links...
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
OutKast is offline   Reply With Quote
Old 02-16-2019, 12:53 PM   #5 (permalink)
Super Advanced Member
 
85indy400's Avatar
 
Join Date: Nov 2006
Posts: 100
Location: Conowingo, Md
Default

Right, no gas at all. Maybe it evaporated that fast, but I shut it off, pulled the plug and used a lighter on it and it didn't appear to burn any.
So, I tried one more time. Let it idle till about 100 degrees and blimped it a couple times. It did sound different. Hit it 3 or 4 more times and it started sounding better. Checked the exhaust pipe with my IR thermometer and the temps are more equal now. I think it fixed itself! Time will tell I guess.
Thanks OutKast!
OutKast likes this.
85indy400 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
2009 CFR 800 Injector O-Rings Xfire 800 R XFire 128/Firecat(03-06 & 09-?) 11 04-08-2019 09:36 AM
Bad injector Newguy IQ chassis 4 02-15-2019 02:17 PM
2012 rmk injector install lovas1jt Switchback Assault/RMK (Pro-Ride Chassis) 2 02-09-2019 02:00 PM
Fuel injector removal strockerace Polaris General Discussion 9 11-24-2018 08:55 AM
Oil around injector Zman6 F series (07- ) 4 11-16-2018 08:32 PM


All times are GMT -4. The time now is 12:13 AM.



Powered by vBulletin® Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.