95 VMAX engine forcing. - Snowmobile Forum: Your #1 Snowmobile Forum
http://www.snowmobileforum.com
Go Back   Snowmobile Forum: Your #1 Snowmobile Forum > Specific Snowmobile Forums > Yamaha Snowmobiles


» Sponsors





Reply
 
LinkBack Thread Tools Display Modes
Old 12-26-2012, 04:25 PM   #1 (permalink)
Registered User
 
Join Date: Dec 2011
Posts: 9
95 VMAX engine forcing.

Hey guys, someone I know bought a 95 VMAX 2 cylinder 500cc liquid cooled and the thing cant even go up a mountain without struggling. I don`t know what the problem is but I would think it has to do with the engine or fuel. He says he got the carburator, cylinders and pistons redone not too long ago but it still does the same thing. Any ideas ?
Greatnorth is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-26-2012, 04:33 PM   #2 (permalink)
Super Moderator
 
RJ Gleason's Avatar
 
Join Date: Feb 2005
Location: Groton NY
Posts: 32,065
Clutches cleaned and aligned properly?
__________________
Old Cat Rider
'93 Wildcat 700EFI
w/ Comet 108 Pro-4 clutch & 01 ZR skid

'90 Wildcat Project in progress.

Vintage (sorta)
1980 Indy Trail 440 (for sale)
1980 AC Pantera (donor engine to the 90 wildcat)


http://www.dcdrifters.net/


Worshipful Master; F&AM Dryden Lodge# 472
http://www.masonicdryden472.org/

Rules of this forum are strictly enforced!
RJ Gleason is offline   Reply With Quote
Old 12-26-2012, 04:43 PM   #3 (permalink)
Registered User
 
Join Date: Dec 2011
Posts: 9
I'm not sure, its dark right now so I won't be touching it till tomorrow. All I know is when I had nothing to pull and I was on flat grounds, the engine would be fine after holding the gas all the way down. As soon as I have to go uphill or haul something it has a really hard time. The engine is very smoky but no signs of overheating.

Sent from my SGH-T999V using Snowmobile.com App
Greatnorth is offline   Reply With Quote
Old 12-26-2012, 04:47 PM   #4 (permalink)
-LIFETIME MEMBER-
 
Join Date: Nov 2009
Posts: 5,002
sounds like its running rich. depending on how long its been since the carbs were cleaned, that would be a good place to start. doesnt take but a few weeks for bad gas to sour the carbs.

there is also the possibility of the secondary not back shifting, especially if the smoke your seeing smells like burning rubber.

as always, the more and accurate the info, the better.
yamadad4 is offline   Reply With Quote
Old 12-27-2012, 11:58 AM   #5 (permalink)
Registered User
 
Join Date: Dec 2011
Posts: 9
I noticed one of the two wires on the throttle is loose. I think it might be the air intake. Which means it would be rolling rich and that would make sense. Going to check it soon and post an update. Does anyone know if its supposed to be like that though?

Sent from my SGH-T999V using Snowmobile.com App
Greatnorth is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools
Display Modes

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


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 04:38 PM.



Copyright SnowmobileForum.com

Search Engine Friendly URLs by vBSEO 3.6.0