1974 DT Yamaha DT175 can you help with my problem
I know this is not a Honda but my other bike is an RD04 and i know you know a lot about bikes so can i pick your brains???. im currently in the states and have been riding around on a beautiful old 1974 two stroke Yamaha DT 175 (the girlfriend hates the smell of a 2 stroke but i think it rekindles my youth so she will have to learn to love it!!! )
the problem with it is that its fine up through the gears until it gets to 5th then at 4000 revs it splutters and wont pick up.
the carb set up is as it should be, points are good and there are new reed valves- but the spark plug is slightly wet and oily, i have checked the oil injecter and it leaks small drips of oil that builds up in in the crank case which i need to empty every once in a while. can i bypass the injecter by premixing the oil/fuel (30:1 mix ratio i think) would this damage this old classic bike and would this malfunction cause the plug to become fouled.
Last edited by astrokan; 02-07-10 at 12:03 AM.
1990 RD04, heated grips, scot oiler, 12v take off, givi wing racks, crash bars, tank cover umm...new head race bearings