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Discussion Starter · #1 ·
I finally got the mojave back that I co-signed for my cousin and to say the least, he didnt take care of it. I am in the porcess of adjusting the valves and I got the book for it, but I am still having porblems. I have the valve cover pulled and the piston is at TDC. I am having problems with knowing exactly where to take the valve clearance measurement. The book says between the valve stem and the end of the adjuster screw. The clearance should be about .008-.009. I am just having problems locating them. Any help would be great. The reason I decided to do this is because I know he never would of done it and it was making a horrible knocking noise when I got it started and the harder I ran it the louder it got. Should I check anything else?
 

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mojavedd said:
1. I am having problems with knowing exactly where to take the valve clearance measurement. The book says between the valve stem and the end of the adjuster screw. The clearance should be about .008-.009. I am just having problems locating them.

2. it was making a horrible knocking noise when I got it started and the harder I ran it the louder it got. Should I check anything else?
1. if its a SCREW/LOCKNUT setup. i forget the type of adjustment on this modele its been awhile since ive worked on one. then you measuer between the VALVE TOP (sticks up thru the valve spring) and the bottom of the SCREW (has the small nut that you loosen on top of the rocker arm to adjust) wish i had a pic for ya. if ya have the manual it should show ya where to check/adjust it.

2. if its a small ticking sound then i would say its prob. valve adjustment but if its a KNOCK then its gonna be bigger. could just be it needs the oil/filter changed,could be cam chain,could be cam chain tensioner,could be ROD KNOCK (BAD BAD BAD) without hearing it i can do a real good diagnosis.
 

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Discussion Starter · #3 ·
That helps out! I know exactly what to do know. I just hope that it cures the problem. I will get to it this weekend and let you know how it turned out. I also bought new sprockets and a chain to replace. When I got the bike back it had been sitting behind a barn out in the open. I am not sure how long but it looked like it had been there for awhile. Do you think I should take the carb apart and clean it as well? I already drained the fuel and replaced all the fluids and plug.
 

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mojavedd said:
1. I also bought new sprockets and a chain to replace.

2. I am not sure how long but it looked like it had been there for awhile.

3. Do you think I should take the carb apart and clean it as well?

4. I already drained the fuel and replaced all the fluids and plug.
1. just make sure you adjust it correctly

2. since its been sitting im sure you checked the air filter/cleaned the air filter/replaced the air filter ? also make sure there are no mouse nests/chewed wires etc..

3. OH YES, i would pull the carb down and clean all the jets/passages with carb cleaner and compressed air. pay close attention to the idle jet/circuit. make sure its very clean or it will not idle. make sure you pull the diaphram/slide and all other parts.

4. thats a very good start. :wink:

you have a service manual for it right ? i would get one if not.

good luck
 

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Discussion Starter · #5 ·
idle problems

Well I adjusted the valves and put the new sprockets and chain on. I cleaned the K&N air filter when I changed the fluids. I tried to start it before I read your last post and I can start it with the choke all the way out, but if I close the choke it dies. It will not start with the choke closed. I am going to take the carb apart now. Once again thanks for the advice. Hopefully after that it will run right!
 

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Discussion Starter · #6 ·
another question

Well I was out in the garage getting ready to take the carb off and I pulled off the cap of the air box discarge hose and a bunch of oil pured out. I know this isnt good. I am guessing that this might mean I have piston wear. If that is what that means then I think I am getting out of my league. I am thinking I should take it to a shop and have them do a compression check. Any advice?
 

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Re: another question

mojavedd said:
Well I was out in the garage getting ready to take the carb off and I pulled off the cap of the air box discarge hose and a bunch of oil pured out. I know this isnt good. I am guessing that this might mean I have piston wear. If that is what that means then I think I am getting out of my league. I am thinking I should take it to a shop and have them do a compression check. Any advice?
did you re-oil the filter with K&N oil ?
is it MOTOR oil or is it just EXCESS K&N OIL ?
did you OVER OIL the filter ? (this is my first guess)
did you OVER FILL the engine with oil ? (this would be my second guess)
is it ALOT of oil or is it just a film of oil ?

if it starts with the choke on then i would say that the PILOT JET is clogged. pull the float bowl and clean the jets with some wired, carb cleaner and conpressed air. look thru them and make sure they are clear (hold them up to light)
 

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Floats

Just be careful not to use compressed air directly on the floats...it will ruin them...
 
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