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Post by km4nxa on Oct 20, 2017 21:38:24 GMT -5
The take off power is a dream now. I'm 6'6 240lbs, it struggled a bit before to get going. Not anymore. Does have a lengthy time from the ten mph to twenty, twenty five mph range. Hoping the rollers, variator and clutch upgrades will help. Cdi box might've got some issues during this whole process. Didn't put out spark above half throttle. Swapped it for a stock one. Solved that issue, but the rev limiter is kicking in with it. Still need to upgrade the jets in carb, maybe get an air fuel gauge if it shows to be that big of deal.
I've rambled a lot here this week, but hope that if someone else has trouble they might benefit from reading. This is hands down the most informative site regarding these machines.
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Post by lostforawhile on Oct 20, 2017 21:55:43 GMT -5
Did you get the 47MM head with the kit? If you're still using the stock head the compression will be pretty high, and hard to start. I learned this after running the stock head for a week then going to the 47MM head, which has a larger combustion chamber, my starter doesn't struggle and the motor starts up only after a few cranks. I will say, it definitely lost power with the larger head. Hopefully I can make it up with some tuning. Interesting to see if it fires with starter fluid. Have you pulled the plug and ensured it's firing strong and correctly? did you consider running a better starter solenoid and some better power and ground cables? the cables, crimped connectors, and solenoid are all awful in stock form. You may be leaving a lot of starting current on the table. I noticed too that the cable comes from the battery on most, goes way back to the solenoid, then around to the starter motor. This is a lot of extra cable even with good cables, with poor cables, it's really bad. I'm going to get a weatherproof ford style solenoid, mount it right down near the battery, where the CDI used to be, and then route it the shortest path possible to the starter |
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Post by km4nxa on Oct 22, 2017 10:56:29 GMT -5
Did you get the 47MM head with the kit? If you're still using the stock head the compression will be pretty high, and hard to start. I learned this after running the stock head for a week then going to the 47MM head, which has a larger combustion chamber, my starter doesn't struggle and the motor starts up only after a few cranks. I will say, it definitely lost power with the larger head. Hopefully I can make it up with some tuning. Interesting to see if it fires with starter fluid. Have you pulled the plug and ensured it's firing strong and correctly? A new head and valves came with the kit. As far as if it's factory size, I'm not sure. The description was pretty vague. When you said you noticed a loss of power after putting larger head on, is that common? If so, do you adjust for the loss with variator, rollers, clutch etc. |
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Post by bullcharles1 on Oct 23, 2017 10:38:34 GMT -5
That's what i'm working on now. There was definitely a dip in compression, noticing easier starting. Loss in power was only a SOP (seat of pants) data point.
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