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Old 5 Aug 2008
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Join Date: Aug 2008
Location: MAnchester, TN, US of A
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First Bike, 1972 TS185 Parts Scrounging assistance needed

Like i said, Its my first "road capable" bike, I bought it for a tank of gas(No joke), problem is i cannot seem to find a crankcase cover for the Right side(Kick start lever goes into it?, when i sit on the bike it is on my right side).

As when i picked it up it had a huge gaping hole in the cover, so i need to find a new one. I also need a rebuild kit for the carb(might as well, has sticky floats), can anyone direct me to a website that i can get these parts from?
AFAIK, the bike has been sitting for a year, as the owner said it worked but had sticky floats so he parked it, he said the hole in the case is new(I work with the guy).

So if anyone can tell me exactly what i should do AFA getting it running and bringing it back up to road worthiness,I would be much obliged
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Old 8 Aug 2008
Nigel Marx's Avatar
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Join Date: Oct 2000
Location: South Island, New Zealand
Posts: 755
Thumbs up TS woes

You have one of the early series TS185s that are more rare than the later reed-valve models, from 1977-78 on to the present (and how many cars/bikes have had a 30 year production run with only cosmetic changes?!!). I would suggest you keep an eye on eBay, or join the Vintage Japanese Motorcycle Club email list. To do this send an email to:

How big is the hole? It's amazing what you can fix with JB Weld.

Regarding the sticking float, it will be the float valve, unless the float is holed. The float can be re soldered as the early ones are brass. To check for holes, shake the float to see if the is any fluid inside. If it has fluid inside or you want to check another way, hold the float in hot water to see where the bubbles come out. Mark the place and use a hot solder gun to repair after wire brushing the area around the leak.

The float valve is either a metal on metal valve or a rubber tipped valve; I'm not sure which. The metal ones can often be refurbished using fine grinding paste and a very slow drill (I use a very old hand twist drill) to spin the valve.

Rubber ones can be softened by soaking in DOT5 synthetic brake fluid for several days. The same technique is also good for softening hard old carb and airbox boots.

Check to make sure someone has not tried to deal with the leak by bending the float tab up to make the valve seat more firmly. This will lower the float level and make the bike run lean. TS185s, like all two-smokes, rely on the vapourisation of the fuel to help cool the piston and running lean risks seizure.

If the bike has been sitting for a while often the fuel galleries will have fuel gum in them, blocking the idle and choke circuits. Simmering the dismantled carb in a 50/50 mix of Yamaha Carb Cleaner and water, outside please, over a little gas cooker, for 15-20 minutes will fix that. This is NOT how the instructions on the bottle tell you to do it, but it has returned furry lumps of aluminum oxide back to working carbs for me many times. Save the liquid as it can be reused dozens of times.

Another common problem with an old two-smoke that has been sitting is the crank seals get leaky. If the motor will only run with the choke on, it is pulling air in around the crank seals.

Email me directly off the HUBB for further instructions or help.

Kind regards

Nigel in NZ
The mouth of a perfectly contented man is filled with . -- 2200 BC Egyptian inscription
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Old 10 Aug 2008
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Join Date: Jan 2007
Location: Norway
Posts: 37
If you find a rebuild kit for your carb. you should be careful with using the jet and needle in the kit. Keyster who is big on carb rebuild kits are known to use the wrong size of needle and jets in their kits for suzuki two strokes causing a lot of problems. Gaskets and float valve are useable though.
A good buletin board for suzuki twostrokes is:
Sundial Moto Sports :: Index
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