1990 Suzuki LT250S help Needed
#1
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
Hey guys;
So last week I finally bought my wife a sportier quad. I remebered these back in the early 90's and thought they were the one of the coolest quads around. Now I think that the power will be much better for my wife than a 2 stroke.
The quad is in great shape, except that it has a couple of minor problems:
1) Quad is extremely hard to start
2) Somewhere there is an oil leak (probably base gasket)
3) Wondering what the stock main jet was?
I was going throught the machine this past weekend, my biggest concerns are the hard starting issue, and the jetting. I took apart the carb to check if it was gummed up, and noticed it had 110 main jet in it. After I did get machine to start I took it for a 2 mile little run, seemed to run OK.
Later that night I was thinking about my oil leak thinking maybe I'll just rebuild whole top end????
I went out to my shop to do a compression test, it was at about 105 PSI. But I noticed that the spark plud electrode was turning white, like it was too lean???
Questions
1) Anyboday have any idea of what jetting I should be running (2200 ft)
2) Why this thing is soo hard too start? (105 PSI isn't too bad for a bone stock 4 stroke)
Any help would be appreciated
So last week I finally bought my wife a sportier quad. I remebered these back in the early 90's and thought they were the one of the coolest quads around. Now I think that the power will be much better for my wife than a 2 stroke.
The quad is in great shape, except that it has a couple of minor problems:
1) Quad is extremely hard to start
2) Somewhere there is an oil leak (probably base gasket)
3) Wondering what the stock main jet was?
I was going throught the machine this past weekend, my biggest concerns are the hard starting issue, and the jetting. I took apart the carb to check if it was gummed up, and noticed it had 110 main jet in it. After I did get machine to start I took it for a 2 mile little run, seemed to run OK.
Later that night I was thinking about my oil leak thinking maybe I'll just rebuild whole top end????
I went out to my shop to do a compression test, it was at about 105 PSI. But I noticed that the spark plud electrode was turning white, like it was too lean???
Questions
1) Anyboday have any idea of what jetting I should be running (2200 ft)
2) Why this thing is soo hard too start? (105 PSI isn't too bad for a bone stock 4 stroke)
Any help would be appreciated
#3
#4
![Default](https://atvconnection.com/forums/images/icons/icon1.gif)
Before you do anything else, check the valve lash.... Particularly, the intake valve. .001-.003 for the intake. .003-.005 exhaust. Let me know what condition the lash was in.
I wasted hours trying to tune a carb on one of those quads before I got around to the lash. The intake valve was never closing all the way. Intakes wear out because the air filter is not up to par.
I wasted hours trying to tune a carb on one of those quads before I got around to the lash. The intake valve was never closing all the way. Intakes wear out because the air filter is not up to par.
#5
Thread
Thread Starter
Forum
Replies
Last Post
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)