So I took the head off my act 90 and there are valve marks on the piston. Is this caused for too big of a cam? Or do I have something off far as valve adjustment, because I checked the clearance on the valve tappets.
Power User
Roostin Away
So I took the head off my act 90 and there are valve marks on the piston. Is this caused for too big of a cam? Or do I have something off far as valve adjustment, because I checked the clearance on the valve tappets.
1974 atc 90 project underway cuzzztom
1985 atc 110 for sale
84 200s all original got off the first and only owner
new carb
maybe putting my 200x cam in it but not sure
old trike
1985 200x
12.1 piston
oil cooler kit
white bors cam
super trapp exhaust
uni clamp on air filter
350x front end
Power User
The day begins with 3WW
Did it ever run that you know of?
Cam chain could be stretched but not sure the timing
would allow it to run if it was that far off.
Someone adjusted the valves in the wrong position and had them waaaay too tight.
in the wrong piston position.
I've heard that crank bearings can slop just enough the let the piston hit the valves.
I happen to have a couple bent valves from a 90 so I know it can happen
unless the box of parts got dropped and bent both valves?
Is the top of the piston all fuzzy with 1/4 inch of carbon?
Power User
Catch me if you can
Timing chain off by a tooth?
At The Back Of The Pack
Arm chair racerAt the back of the pack
You need to provide more info on the engine. Does it run? Any major engine work/changes lately?
-Fathers 1985 200X
Power User
Roostin Away
I built motor from scratch with the sl90 manual clutch kit, no hi lo box, 55mm rocky piston, new valves n springs, and now I took out the head and swapped in a helm n son cam. I'm going to line up timing again tomr and see if I can get it to run! Any tips when lining up the timing?.
1974 atc 90 project underway cuzzztom
1985 atc 110 for sale
84 200s all original got off the first and only owner
new carb
maybe putting my 200x cam in it but not sure
old trike
1985 200x
12.1 piston
oil cooler kit
white bors cam
super trapp exhaust
uni clamp on air filter
350x front end
Just Too Addicted: Protecting Our Community
The day begins with 3WW
maybe download a manual with all the important information in it??:Originally Posted by vartiak15
http://www.oscarmayer.net/atc/manuals/
Liberalism suspends the intellect of its victims, while at the same time tricking them into believing that they're smarter than everyone else.
If we've done business together, please leave me feedback. Thank You!:
http://www.3wheelerworld.com/showthr...t=Scootertrash
Power User
The day begins with 3WW
^ thank you sir, i was just gonna tell him link is in my sig.
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Nearly every kind of Honda ATC (plus some custom ones
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Power User
Roostin Away
Wow my manual sucks compared to that one, mine said nothing about the centerline thanks a bunch now I just need gas to get to the plug and she should run
1974 atc 90 project underway cuzzztom
1985 atc 110 for sale
84 200s all original got off the first and only owner
new carb
maybe putting my 200x cam in it but not sure
old trike
1985 200x
12.1 piston
oil cooler kit
white bors cam
super trapp exhaust
uni clamp on air filter
350x front end
Just Too Addicted: Protecting Our Community
The day begins with 3WW
No Problem. It's an excellent link.^ thank you sir, i was just gonna tell him link is in my sig.
Every time I see your posts that damn song pops into my head:
Liberalism suspends the intellect of its victims, while at the same time tricking them into believing that they're smarter than everyone else.
If we've done business together, please leave me feedback. Thank You!:
http://www.3wheelerworld.com/showthr...t=Scootertrash
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