I Am Beat!! Someone...Anyone!

So I have probably gotten the biggest leg workout of my life, but still nothing.

The Situation: Possible hydro/vapor lock (not great with terminology) because of gas line left on. Problem occurred day after I broke in the motor. Gas line was left on for an extended amount of time, no longer than 24 hrs, but close. Peddled, peddled, and peddled but nothing. Justin from Pirate Cycles thought it to be vapor lock due to line being left on; fuel leaks into motor, builds up on bottom= hard as **** to pedal. Feels like there is too much compression. I have spark, and when the plug is out and I have the rear wheel suspended to check for spark, it sounds great, just as soon as that plug goes back in and boom you can't pedal with the wheel suspended. I disconnected the carb, the muffler, and the plug and turned the bike upside down for 72 hrs, and from time to time, with the clutch engaged, rotated the pedals to crank the piston. Apparently liquid was supposed to come from the bottom of the motor if it were to be a hydro/vapor lock. But there didn't seem to be anything. So after 72 hrs, I flipped it back over.

I changed the fuel, unscrewed the fuel valve to release old fuel, as well as where the tubing connects to carb. I checked out the carb and in my eyes, it looked ok.

My question: What the **** is wrong. I will replace parts if need be, just not trying to replace the motor. It ran GREAT for 50 miles, then nothin. I'm not the type to give up and I hate wasting money so i'm really hoping someone might have an idea as to what the problem might be. ANY help is appreciated and I look forward to the day the General takes charge again!

well that does not sound like something easily fixable. Bikeguy Joe, am I in the boat of having blown or seized the motor? Or is there something that can be done? Also would that be the cause of all that compression?

Venice Motor Bikes,
I do not believe the engine is turning over, due to the amount of compression there is. I've pushed the bike with the clutch engaged to see if I could hear the piston moving up and down. I hear the putt, putt of it, but thats it. When peddling, I do not hear it want to start.

I checked for spark by removing the plug, and grounding it to the outside of the motor, bike was propped up on a car jack and someone held the bike for me while I peddled. Plenty of spark. Not the stock plug either. Actually a heavy duty motorcycle plug. After peddling there is a little oil around the threading of the plug, but none where the actual spark would be. But I believe that to be from oil stuck in the threading in the motor. One attempt we tried pouring a very small amount of 2 stroke oil in the plug hole to lube the inside thinking it might have been dry. didn't work.

Definately has fuel to the carb, but then again, not positive if the carb is working properly. I'm not too mechanically inclined, however I watch and learn quickly. I took a small engines class about 10 years ago, but do not remember much of anything from it. lol.

Another guy I spoke to said it could possibly be the timing in the crank. The engine is trying to fire when the piston is being forced down which might account for that extra compression. Just a thought.

Thanks for the responses!

Thanks for the suggestions, I'm going to do the simple/obvious things first, before I start tearing apart the motor. I'll keep everyone updated!

Hopefully this will be me pretty soon.

Ahhh, thats what I had been doing to try to get it started. I would peddle my a$$ off, squeeze the clutch lever, and pop it while flying. And I was not getting any "BRRRRRR....POP, POP, Vroom". If this is the case, how can I fix?

Venice Motor Bikes said:

Isn't that the very first question that I asked you?!?!?!?
"Are you sure the engine actually turns over when you pedal? (The clutch isn't slipping???)"
What did you think I was asking?????

Sometimes I really wonder why I even bother trying to help people?????

Click to expand...

Umm, did you not understand when I said I am not too knowledgable about this? The engine not turning over would not automatically make me assume that the clutch is slipping. I MISINTERPRETED what you said. Sorry that I did, but it's not necessary to make me look like a fool. Sometimes the way things are worded affect how something is interpreted. Everyone is guilty of that as a novice. Please show a little more patience next time.

Thanks jim for the info on how to go about doing that. Question, can I expect the assembly to be shot if I've tried, and tried to get the bike to start? I am not going to be able to work today but want to prepare myself for the worst when I do look at it.

Excuse me everyone if I'm the dumba$$, but we've all been one at one point.