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Lend me your ears? I'm going in circles

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Brendan

Posts: 190

Joined: Sat Apr 04, 2009 7:59 pm

Location: Orlando

Post Sun Jul 26, 2015 6:39 pm

Lend me your ears? I'm going in circles

I am breaking in my rebuild and It seems I have been chasing a problem that keeps coming and going. It's a hesitation when riding, and it seems like its missing at idle every now and then.
https://www.youtube.com/watch?v=xcvIAqoO_Fo&feature=youtu.be
I thought it was vapor lock or bad gas cap. I took it off and it seemed to clear up the problem.
Then it came back.
I then found that my spark plug cables were loose on the plugs. I tightened them up real good and the problem went away and returned.
I changed the plugs.
The M*88 carb is tuned exactly the way it says to in the manual. The bike starts every time on first kick ,if warm, and 3 kicks cold. Two to prime and one to start.
I took all precautions regarding manifold leaks.
I replaced the plugs.

I have been listening to other 45s idle on YouTube and mine sounds a bit different.
The hesitation is keeping me from straying to far.
I am starting to wonder if I screwed something else up while rebuilding.
Take a listen at idle.

recheck manifold leak?
Change points?
Carb problem?

Any advice would be greatly appreciated

Brendan

https://www.youtube.com/watch?v=xcvIAqoO_Fo&feature=youtu.be
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Pa

Site Admin

Posts: 5271

Joined: Sun Mar 12, 2000 1:01 am

Location: Ohio USA

Post Sun Jul 26, 2015 8:32 pm

Re: Lend me your ears? I'm going in circles

Wow Brendan. I do hear a small miss but I think it is on the ignition/spark side. I cannot pin point it but I really don't think it is on the fuel side. Maybe points are intermittently sticking ?
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Brendan

Posts: 190

Joined: Sat Apr 04, 2009 7:59 pm

Location: Orlando

Post Tue Jul 28, 2015 10:40 pm

Re: Lend me your ears? I'm going in circles

I have been setting the points at .020 the whole time.
Tried to change them and the new set didn't fit. I opened the holes to enable to set the GAP but I had one of the screws in on the first couple threads and moved the crank and the point hit it and the lobe snapped the Bakelite piece.
I put the old points in with the new spring and soldered the new point pigtail onto the old point.
I set the GAP to .0225 and she goes without missing a beat. ba-doop ba-doop ba-doop ba-doop ba-doop ba-doop
I have 40 miles on her at the moment. The neighbors are probably tired of me going around the block.

Thanks
Brendan
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Pa

Site Admin

Posts: 5271

Joined: Sun Mar 12, 2000 1:01 am

Location: Ohio USA

Post Wed Jul 29, 2015 7:43 am

Re: Lend me your ears? I'm going in circles

Awesome ! Give us a listen to her purring Bro. :D

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