Modern Vespa : New to me 1980 Bajaj Chetak

18 Mar 2015 | Author: | Comments Off on Modern Vespa : New to me 1980 Bajaj Chetak
Bajaj KB 125

Modern Vespa

Mon Apr 16, 2012 1:09 pm quote

So, I picked up a 1980 Chetak 150 this weekend (pics to come) and have some questions about them as this is my first Vespa/Bajaj. I’ll start with what I do know about it. It was last registered in 2000 in Nebraska.

The title says its a 125 but on the fan on the motor it says 150, I’m going to guess its a 150 based on research. It ran when parked but the PO said there was some sort of rattle in the motor. The motor looks pretty clean and feels tight but on about every 4th or 5th lick it locks up and I have to turn the fan by hand before I can get it to kick again.

I put in a battery and shot the carb with some starter fluid and it does fire up but dies after about 30-40 seconds. I’m assuming it just needs a little fresh fuel and it should run. As the PO said, there is something knocking about when its running and I suspect its whatever is causing it to lock up when I try to kick it.

Over all its in really good condition, no major rust, scratches or dents other than on the motor side fender. I’m missing one mirror and some of the rubber seals around the rear fenders, the motor side is totally gone and the other side is missing most of it. The original tool set is there but I’m sure missing some of the tools. There are four lock cylinders on the bike, one for the ignition, one for the glove box, one for the tool/battery cover and a steering lock.

The steering lock and glove box take the same key but the batter/tool cover has a different one, is this typical or did someone switch out one of the locks at some point? The one for the glove box has Bajaj stamped on it and the other one looks like a hardware store replacement key.

Bajaj KB 125

The paint is pretty good on it but looks like somebody got a little too close with a paint roller, there are specks of white paint on it in some spots, anybody have any good tricks for getting that kind of stuff off? I tried a little bit of paint thinner on a hidden area but it takes the original orange paint off, I’d rather leave that on #61514;… The chrome on the turn signals is pretty roached out but the headlight ring and tail light are both really good, the floor board runners and leg shield chrome are good but need a good cleaning, like the rest of it.

The gas tank is full and needs to be drained of the old fuel/oil before I even try the fuel tap. Is there anything I should know before removing the tank? Is there a way to stop fuel from pouring out when I lift the tank out of the body? My girlfriend is very particular about the patio and has already mentioned that I will suffer a great deal if I make an EPA disaster area out of it #61514;

Lastly, is the 12v conversion really worth it? I have had numerous 6v motorcycles and haven’t had any issues with lighting or running them on 6v, this includes a 1950 Sunbeam S8, a very power hungry bike with a charging system made by the prince of darkness himself, Lucas. For those of you that are running 6v still and have dim lights, try cleaning the contacts in the switches and the terminals in the lights.

I’ve found this to to make a world of difference. Also, try putting in a modern gel battery, I just put in a 14ah battery and my lights are bright and clear. I only run gels now, they cost a little more up front but I only have to replace them after 5-7 years rather than every 2-3 years.

I really welcome and appreciate any advice on this thing and look forward to hearing from other Chetak owners on what has worked for them. Any good tips and tricks are welcome.


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