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-   F2 Tech (https://cbrforum.com/forum/f2-tech-93/)
-   -   F2 Skipped Cam tooth?? (https://cbrforum.com/forum/f2-tech-93/f2-skipped-cam-tooth-133900/)

subyman1440 Jan 26, 2012 08:18 PM

F2 Skipped Cam tooth??
 
Ok, I ran into a problem earlier today...

I was replaced my cct with a manual cct. Being the risk taker, I chose not to bother cranking my engine to tdc. Stupid me, I forgot to even tighten the darn cct and I was cranking the engine with the starter while the tensioner was super loose. I noticed quickly that it wasn't starting so I stopped. I followed the steps to tension properly. Now the bike has trouble starting with the choke on... I actually have to give it light throttle to start it from a cold start. However once the engine starts, she runs fine with no unusual sounds or backfires. Basically, before I replaced the cam tensioner, the bike started up in less than a second. Now, it takes a good 3 second to start it. The engine sounds absolutely normal to me. Am I just being too superstitious? Should I worry if I skipped one tooth? and how would I know??

Project96 Jan 26, 2012 11:27 PM

Only way to know for sure is to pull the valve cover & check cam timing

subyman1440 Jan 26, 2012 11:29 PM


Originally Posted by Project96 (Post 1127322)
Only way to know for sure is to pull the valve cover & check cam timing

That's what I was planning on doing. However, I've never taken the valve cover off my bike. Do I have to drop the engine in order to do so? Or could I leave it in?

coalminer frank Jan 27, 2012 03:45 AM

No you dont have to drop the engine. You can get the cover off with the engine still in the bike.

subyman1440 Jan 27, 2012 10:04 AM

Alright, I'll try taking the cover off today. I'll let you guys know what the problem was tonight

JankCibberf2 Jan 27, 2012 11:46 AM

i changed my cct without the motor being tdc.

subyman1440 Jan 28, 2012 12:12 AM

HUGE relief. Pulled the valve cover off, checked the timing and it's fine. I guess I need to be more cautious next time. I still have to figure out why it's harder to start. I'm going to go ahead and clean the carbs since I had to take em off. Spark plugs are fine. So I'm guessing it must be the carbs.

underground-mpyre Jan 28, 2012 01:34 PM

Always tighten the cct till it starts getting tight and loosen it a 1/2 to 2/3rds of a turn back and loctite it. It will be fine with never a worry after that.


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