how thirsty are g180w's??

nut161 · Post by **nut161** » 19 Mar 2008, 10:11

ok i have my 1800 running on a pair of solexs i bought from a mate that had them on a 2l sillycar twincam. now these carbs no matter how i adjust them jsut want to run lean and one throat likes to cough and wont balance out. also when u try rev it is a mission for the revs to rise and then it takes a long time for the revs to drop again.

so ive come to the conclusion the jetting is insufficient but that seems weird due to the carbs coming from a similar design but larger twincam motor??

GeminiCoupe · Post by **GeminiCoupe** » 19 Mar 2008, 13:36

Although the 18RG [im assuming thats what they came out of] might be similar in size its airflow characteristics are completely different. Jetting should help you big time, but why solex's?

I know they cost money, but id ATLEAST go Dellortos.

Nick-

nut161 · Post by **nut161** » 19 Mar 2008, 14:33

cause they where cheeeep. im regretting it now but thats for sure. i thought they would have been alot closer than they are but
im trying to get a set of webers/dellortos atm. but its a daily so i dont care if its not perfect as long as it runs safely.

bad 44u · Post by **bad 44u** » 19 Mar 2008, 20:37

the popping could be an air leak on that runner and what fuel system are you running

nut161 · Post by **nut161** » 19 Mar 2008, 21:11

hmm that could explain alot actually, shouldnt be though as brand new soft mounts went on. im running the stocko pump on 12v with a redline carb reg set at 3.5psi.

bad 44u · Post by **bad 44u** » 20 Mar 2008, 10:11

id be upgrading the fuel pump. also if the popping is on cylinder 4 that's generally where the brake booster line is. have you got a fuel pressure gauge on the far side of the carbies that will tell you if your fuel system is adequet. even a cheap plastic one for diaginostics. do as much as you can befor you take it to the workshop otherwise they charge you heaps to fix little problems.

nut161 · Post by **nut161** » 20 Mar 2008, 12:10

hmm my old worked g180 with twin 40 idfs ran fine on the stocko at 12v. but i have a high volume pump here i might as well use to elliminate a possible problem. nah its the 2nd pot thats coughing. i have the carbs mounted dead flat with no booster and the master sits below the trumpets so they arent getting blocked.
hmm thats a good idea about the gauge because i dont know how accurate those redline regs are, ill jsut have to pinch one of my autometer gauges to check.

bad 44u · Post by **bad 44u** » 20 Mar 2008, 18:11

thats what i did temp gauge.